ASME B31G 2012

ASME B31G-2012 (Revision of ASME B31G-2009)

Manual for Determining the Remaining Strength of Corroded Pipelines

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Supplement to ASME B31 Code for Pressure Piping

A N A M E R I C A N N AT I O N A L STA N DA R D

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ASME B31G-2012 (Revision of ASME B31G-2009)

Manual for Determining the Remaining Strength of Corroded Pipelines

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Supplement to ASME B31 Code for Pressure Piping

A N A M E R I C A N N AT I O N A L S TA N D A R D

Three Park Avenue • New York, NY • 10016 USA

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Date of Issuance: October 24, 2012

The next edition of this Manual is scheduled for publication in 2015. ASME issues written replies to inquiries concerning interpretations of technical aspects of this Manual. Periodically certain actions of the ASME B31 Committee may be published as Code Cases. Code Cases and interpretations are published on the ASME Web site under the Committee Pages at http://cstools.asme.org/ as they are issued. Errata to codes and standards may be posted on the ASME Web site under the Committee Pages to provide corrections to incorrectly published items, or to correct typographical or grammatical errors in codes and standards. Such errata shall be used on the date posted. The Committee Pages can be found at http://cstools.asme.org/. There is an option available to automatically receive an e-mail notification when errata are posted to a particular code or standard. This option can be found on the appropriate Committee Page after selecting “Errata” in the “Publication Information” section.

ASME is the registered trademark of The American Society of Mechanical Engineers.

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This Manual was developed under procedures accredited as meeting the criteria for American National Standards. The Standards Committee that approved the Manual was balanced to assure that individuals from competent and concerned interests have had an opportunity to participate. The proposed Manual was made available for public review and comment that provides an opportunity for additional public input from industry, academia, regulatory agencies, and the public-at-large. ASME does not “approve,” “rate,” or “endorse” any item, construction, proprietary device, or activity. ASME does not take any position with respect to the validity of any patent rights asserted in connection with any items mentioned in this document, and does not undertake to insure anyone utilizing a standard against liability for infringement of any applicable letters patent, nor assumes any such liability. Users of a code or standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, is entirely their own responsibility. Participation by federal agency representative(s) or person(s) affiliated with industry is not to be interpreted as government or industry endorsement of this code or standard. ASME accepts responsibility for only those interpretations of this document issued in accordance with the established ASME procedures and policies, which precludes the issuance of interpretations by individuals.

No part of this document may be reproduced in any form, in an electronic retrieval system or otherwise, without the prior written permission of the publisher.

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Copyright © 2012 by THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS All rights reserved Printed in U.S.A.

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CONTENTS Foreword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Committee Roster . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Correspondence With the B31 Committee . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Summary of Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

iv v vi vii

1

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1

2

Evaluation Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6

3

Tables of Allowable Length of Corrosion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8

Figures 1.12-1 Corrosion Pit Interaction Distances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.13-1 Helically Oriented Corrosion Pattern . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.1-1 Corrosion Parameters Used in Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5 5 7

Tables 3-1 3-1M 3-2 3-2M 3-3 3-3M 3-4 3-4M 3-5 3-5M 3-6 3-6M 3-7 3-7M 3-8 3-8M 3-9 3-9M 3-10 3-10M 3-11 3-11M 3-12 3-12M

Values Values Values Values Values Values Values Values Values Values Values Values Values Values Values Values Values Values Values Values Values Values Values Values

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of of of of of of of of of of of of of of of of of of of of of of of of

L L L L L L L L L L L L L L L L L L L L L L L L

for for for for for for for for for for for for for for for for for for for for for for for for

Pipe Pipe Pipe Pipe Pipe Pipe Pipe Pipe Pipe Pipe Pipe Pipe Pipe Pipe Pipe Pipe Pipe Pipe Pipe Pipe Pipe Pipe Pipe Pipe

Sizes Sizes Sizes Sizes Sizes Sizes Sizes Sizes Sizes Sizes Sizes Sizes Sizes Sizes Sizes Sizes Sizes Sizes Sizes Sizes Sizes Sizes Sizes Sizes

≥ ≥ ≥ ≥ ≥ ≥ ≥ ≥ ≥ ≥ ≥ ≥ ≥ ≥ ≥ ≥ ≥ ≥ ≥ ≥ ≥ ≥ ≥ ≥

NPS 2 and < NPS 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 mm and < 168 mm O.D. . . . . . . . . . . . . . . . . . . . . . . . . NPS 6 and < NPS 10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168 mm and < 273 mm O.D. . . . . . . . . . . . . . . . . . . . . . . . NPS 10 and < NPS 16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273 mm and < 406 mm O.D. . . . . . . . . . . . . . . . . . . . . . . . NPS 16 and < NPS 20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 406 mm and < 508 mm O.D. . . . . . . . . . . . . . . . . . . . . . . . NPS 20 and < NPS 24 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 508 mm and < 610 mm O.D. . . . . . . . . . . . . . . . . . . . . . . . NPS 24 and < NPS 30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 610 mm and < 762 mm O.D. . . . . . . . . . . . . . . . . . . . . . . . NPS 30 and < NPS 36 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 762 mm and < 914 mm O.D. . . . . . . . . . . . . . . . . . . . . . . . NPS 36 and < NPS 42 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 914 mm and < 1 066 mm O.D. . . . . . . . . . . . . . . . . . . . . . NPS 42 and < NPS 48 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 066 mm and < 1 219 mm O.D. . . . . . . . . . . . . . . . . . . . NPS 48 and < NPS 52 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 219 mm and < 1 320 mm O.D. . . . . . . . . . . . . . . . . . . . NPS 52 and < NPS 56 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 320 mm and < 1 422 mm O.D. . . . . . . . . . . . . . . . . . . . NPS 56 Through NPS 60 . . . . . . . . . . . . . . . . . . . . . . . . . . 1 422 mm Through 1 524 mm O.D. . . . . . . . . . . . . . . . . .

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9 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 27 30 33 36 39 42 45

FOREWORD It has been recognized within the pipeline industry that some sections of high-pressure pipelines, particularly those with long service histories, may experience corrosion. It has also been recognized, through theoretical analysis, scientific research and testing, and industry operating experience, that some amount of metal loss due to corrosion can be tolerated without impairing the ability of the pipeline to operate safely. In 1984, ASME published the first edition of the B31G Manual for Determining the Remaining Strength of Corroded Pipelines. The B31G document provided pipeline operators with a simplified evaluation method based on the results of analysis and tests. The application of B31G has enabled pipeline operators to reliably determine safe operating pressure levels for pipe affected by corrosion, and to determine whether repairs are necessary in order to continue operating safely. B31G continued to be reissued by ASME with only minor revisions over time, although other corrosion evaluation methods had evolved since B31G’s initial publication. A majority of these other methods are based on the same theoretical model from which the original B31G method was derived, but may offer some refinement in accuracy. Subsequently, an effort was undertaken to update the B31G document to recognize certain other corrosion evaluation methods that have proven sound and that have seen successful use in the pipeline industry. Incorporation of these other methods into a recognized Code document provides the pipeline operator or other user with a formalized framework within which to use such methodologies, as well as a wider range of codified technical options with which to make an evaluation. The 2009 revision of B31G reflected those objectives. The 2012 edition of B31G was approved by the American National Standards Institute (ANSI) on September 20, 2012.

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ASME B31 COMMITTEE Code for Pressure Piping (The following is the roster of the Committee at the time of approval of this Standard.)

STANDARDS COMMITTEE OFFICERS M. L. Nayyar, Chair J. E. MeYER, Vice Chair N. Lobo, Secretary

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STANDARDS COMMITTEE PERSONNEL N. Lobo, The American Society of Mechanical Engineers W. J. Mauro, American Electric Power J. E. Meyer, Louis Perry & Associates, Inc. M. L. Nayyar, Consultant R. G. Payne, Alstom Power, Inc. G. R. Petru, EPCO Inc. E. H. Rinaca, Dominion Resources, Inc. M. J. Rosenfeld, Kiefner/Applus — RTD R. J. Silvia, Process Engineers and Constructors, Inc. W. J. Sperko, Sperko Engineering Services, Inc. F. W. Tatar, FM Global K. A. Vilminot, Black & Veatch A. Soni, Delegate, Engineers India Ltd. L. E. Hayden Jr., Ex-Officio, Consultant W. J. Koves, Ex-Officio, Pi Engineering Software, Inc. A. P. Rangus, Ex-Officio, Bechtel J. T. Schmitz, Ex-Officio, Southwest Gas Corp. R. A. Appleton, Contributing Member, Refrigeration Systems Co.

R. J. T. Appleby, ExxonMobil Development Co. C. Becht IV, Becht Engineering Co. A. E. Beyer, Fluor Enterprises, Inc. K. C. Bodenhamer, Enterprise Products Co. C. J. Campbell, Air Liquide J. S. Chin, TransCanada Pipeline U.S. D. D. Christian, Victaulic D. L. Coym, Intertek Moody C. J. Melo, Alternate, S & B Engineers and Constructors, Ltd. R. P. Deubler, Fronek Power Systems, LLC P. D. Flenner, Flenner Engineering Services J. W. Frey, Stress Engineering Service, Inc. D. R. Frikken, Becht Engineering Co. R. A. Grichuk, Fluor Enterprises, Inc. R. W. Haupt, Pressure Piping Engineering Associates, Inc. B. P. Holbrook, Babcock Power, Inc. G. A. Jolly, Vogt Valves/Flowserve Corp.

B31 MECHANICAL DESIGN TECHNICAL COMMITTEE R. A. Leishear, Savannah River National Laboratory G. D. Mayers, Alion Science & Technology T. Q. McCawley, TQM Engineering, PC R. J. Medvick, Consultant J. C. Minichiello, Bechtel National, Inc. A. W. Paulin, Paulin Research Group R. A. Robleto, KBR M. J. Rosenfeld, Kiefner/Applus — RTD T. Sato, Japan Power Engineering and Inspection Corp. G. Stevick, Berkeley Engineering & Research, Inc. H. Kosasayama, Delegate, JGC Corp. P. Cakir-Kavcar, Contributing Member, Bechtel Corp. E. C. Rodabaugh, Honorary Member, Consultant

W. J. Koves, Chair, Pi Engineering Software, Inc. G. A. Antaki, Vice Chair, Becht Engineering Co. C. E. O’Brien, Secretary, The American Society of Mechanical Engineers C. Becht IV, Becht Engineering Co. J. P. Breen, Becht Engineering Co. N. F. Consumo Sr., GE Energy (IGCC) NPI J. P. Ellenberger D. J. Fetzner, BP Exploration Alaska, Inc. J. A. Graziano, Consultant R. W. Haupt, Pressure Piping Engineering Associates, Inc. B. P. Holbrook, Babcock Power, Inc.

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CORRESPONDENCE WITH THE B31 COMMITTEE

General. ASME Standards are developed and maintained with the intent to represent the consensus of concerned interests. As such, users of this Standard may interact with the Committee by requesting interpretations, proposing revisions, and attending Committee meetings. Correspondence should be addressed to: Secretary, B31 Standards Committee The American Society of Mechanical Engineers Three Park Avenue New York, NY 10016-5990 Proposing Revisions. Revisions are made periodically to the Standard to incorporate changes that appear necessary or desirable, as demonstrated by the experience gained from the application of the Standard. Approved revisions will be published periodically. The Committee welcomes proposals for revisions to this Standard. Such proposals should be as specific as possible, citing the paragraph number(s), the proposed wording, and a detailed description of the reasons for the proposal, including any pertinent documentation. Proposing a Case. Cases may be issued for the purpose of providing alternative rules when justified, to permit early implementation of an approved revision when the need is urgent, or to provide rules not covered by existing provisions. Cases are effective immediately upon ASME approval and shall be posted on the ASME Committee Web page. Requests for Cases shall provide a Statement of Need and Background Information. The request should identify the standard, the paragraph, figure or table number(s), and be written as a Question and Reply in the same format as existing Cases. Requests for Cases should also indicate the applicable edition(s) of the standard to which the proposed Case applies. Interpretations. Upon request, the B31 Standards Committee will render an interpretation of any requirement of the Standard. Interpretations can only be rendered in response to a written request sent to the Secretary of the B31 Standards Committee. The request for an interpretation should be clear and unambiguous. It is further recommended that the inquirer submit his/her request in the following format: Subject: Edition:

Cite the applicable paragraph number(s) and the topic of the inquiry. Cite the applicable edition of the Standard for which the interpretation is being requested. Phrase the question as a request for an interpretation of a specific requirement suitable for general understanding and use, not as a request for an approval of a proprietary design or situation. The inquirer may also include any plans or drawings that are necessary to explain the question; however, they should not contain proprietary names or information.

Question:

Requests that are not in this format may be rewritten in the appropriate format by the Committee prior to being answered, which may inadvertently change the intent of the original request. ASME procedures provide for reconsideration of any interpretation when or if additional information that might affect an interpretation is available. Further, persons aggrieved by an interpretation may appeal to the cognizant ASME Committee or Subcommittee. ASME does not “approve,” “certify,” “rate,” or “endorse” any item, construction, proprietary device, or activity. Attending Committee Meetings. The B31 Standards Committee regularly holds meetings, which are open to the public. Persons wishing to attend any meeting should contact the Secretary of the B31 Standards Committee. --`,`,,```,,,,`````,``,``,`,,,`-`-`,,`,,`,`,,`---

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Following approval by the B31 Committee and ASME, and after public review, ASME B31G-2012 was approved by the American National Standards Institute on September 20, 2012. Changes given below are identified on the pages by a margin note, (12), placed next to the affected area. Page

Location

Change

2

1.5

In the nomenclature, definition of PF revised

7

2.3

First sentence revised

9

Table 3-1

In eighth column, second entry revised

Table 3-1M

In eighth column, second entry revised

10

Table 3-2

In fifth column, second entry revised

11

Table 3-2M

In fifth column, second entry revised

14

Table 3-4

In second column, first entry revised

15

Table 3-4M

In second column, first entry revised

22

Table 3-8

In third column, first entry revised

23

Table 3-8M

In third column, first entry revised

SPECIAL NOTES: The interpretations to ASME B31G are included in this edition as a separate section for the user’s convenience.

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ASME B31G-2012 SUMMARY OF CHANGES

INTENTIONALLY LEFT BLANK

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ASME B31G-2012

MANUAL FOR DETERMINING THE REMAINING STRENGTH OF CORRODED PIPELINES 1

INTRODUCTION

(h) metal loss in pipe material having ductile fracture initiation characteristics [see paras. 1.7(e) and (f)] unless using a Level 3 assessment in accordance with paras. 2.2(b) and 2.4 (i) metal loss in pipe operating at temperatures above ambient within the range of operating temperature recognized by the governing standard, and provided material strength properties at temperature are considered (j) metal loss in pipe operating at any level of allowable design hoop stress [see paras. 1.4(a) and (b) for additional considerations] (k) metal loss in pipe where internal pressure is the primary loading [see paras. 1.4(c) and (d) for additional considerations]

1.1 Scope This document is intended solely for the purpose of providing guidance in the evaluation of metal loss in pressurized pipelines and piping systems. It is applicable to all pipelines and piping systems within the scope of the transportation pipeline codes that are part of ASME B31 Code for Pressure Piping, namely: ASME B31.4, Pipeline Transportation Systems for Liquid Hydrocarbons and Other Liquids; ASME B31.8, Gas Transmission and Distribution Piping Systems; ASME B31.11, Slurry Transportation Piping Systems; and ASME B31.12, Hydrogen Piping and Pipelines, Part PL. Where the term pipeline is used, it may also be read to apply to piping or pipe conforming to the acceptable applications and within the technical limitations discussed below.

1.3 Exclusions This document does not apply to the following: (a) crack-like defects or mechanical surface damage not completely removed to a smooth contour by grinding (b) metal loss in indentations or buckles resulting in radial distortion of the pipe wall larger than 6% of the pipe outside diameter, unless a Level 3 assessment is performed in accordance with para. 2.4 (c) grooving corrosion, selective corrosion, or preferential corrosion affecting pipe seams or girth welds (d) metal loss in fittings other than bends or elbows (e) metal loss affecting material having brittle fracture initiation characteristics [see paras. 1.7(e) and (f)] unless a Level 3 assessment is performed in accordance with para. 2.4 (f) pipe operating at temperatures outside the range of operating temperature recognized by the governing standard or operating at temperatures in the creep range

1.2 Acceptable Applications

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The application of this document is limited to the evaluation of wall loss in metal pipe within the following limitations: (a) metal loss in pipelines located belowground, aboveground, or offshore (b) metal loss due to external or internal corrosion (c) metal loss produced by grinding where used to completely remove mechanical damage, cracks, arc burns, manufacturing defects, or other defects from the pipe surface (d) metal loss in field bends, induction bends, and elbows (e) metal loss that incidentally affects longitudinal or helical electric seam welds or circumferential electric welds of sound quality and having ductile characteristics, provided workmanship flaws are not present in sufficiently close proximity to interact with the metal loss (f) metal loss of any depth with respect to the pipe wall, except that due consideration shall be given to the accuracy of measurements and effective corrosion rates when the depth of metal loss exceeds 80% of the actual pipe wall dimension (g) metal loss in new pipe where allowed by the applicable code of construction

1.4 Additional Considerations The user is cautioned that additional considerations may apply in certain situations, described below. (a) Pipe operating at low hoop stress levels due to internal pressure (e.g., less than 25% of SMYS) may be perforated by corrosion without inducing structural material failure. The methods and criteria provided herein do not address failure by perforation. (b) Pipe affected by general corrosion of the pipe wall (i.e., corrosion-caused wall loss over the entire pipe surface) effectively operates at a greater hoop stress than 1

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ASME B31G-2012

SF p safety factor SMTS p specified minimum tensile strength at ambient conditions SMYS p specified minimum yield strength at ambient conditions t p pipe wall thickness z p L2/Dt ze p Le2/Dt

(12)

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the nominal hoop stress based on the original wall dimension. Evaluation of individual deep pits within a generally corroded area should account for the effect of wall loss due to general corrosion. (c) Under conditions normally encountered in buried pipelines, the hoop stress due to internal pressure is the largest stress and will govern the mode of failure. High longitudinal stresses in tension acting on metal loss having a significant circumferential extent, in unrestrained piping, could change the failure mode from longitudinal to circumferential. The methods and criteria provided herein do not address circumferential failure due to high longitudinal tensile stresses. For such situations, the user should refer to a more comprehensive fitness-forpurpose guidance document, such as API 579-1/ ASME FFS-1–2007, Fitness-for-Service. (d) Metal loss having a significant circumferential extent and acted on by high longitudinal stresses in compression could be susceptible to wrinkling or buckling. Also, the combination of hoop stress due to internal pressure and longitudinal compression could interact to lower the failure pressure in the metal loss area. The methods and criteria provided herein do not address buckling or wrinkling, or interaction of hoop stress with longitudinal compressive stresses. For such situations, the user should refer to a more comprehensive fitnessfor-purpose guidance document, such as API 579-1/ ASME FFS-1.

1.6 Analysis Level The user may choose to conduct a Level 0, Level 1, Level 2, or Level 3 analysis, depending on the quantity and quality of data available with which to perform an evaluation, and on the desired degree of refinement of the analysis. (a) A Level 0 evaluation is one that relies on the tables of allowable defect length and depth found in section 3. These tables are carried over without change from earlier editions of ASME B31G and have been supplemented by the addition of tables in metric units. It is intended that a Level 0 evaluation be conducted in the field without the need for performing detailed calculations. (b) A Level 1 evaluation is a simple calculation that relies on single measurements of the maximum depth and axial extent of metal loss. It is intended that a Level 1 evaluation be conducted in the field by an engineer, corrosion technician, coating inspector, or other individual having appropriate training. A Level 1 evaluation is also suitable for use in prioritizing metal-loss anomalies identified by inline inspection. (c) A Level 2 evaluation is one that incorporates a greater level of detail than a Level 1 evaluation in order to produce a more accurate estimate of the failure pressure. It typically relies on detailed measurements of the corroded surface profile, accounting for the actual distribution of metal loss, and involves repetitive computations that may be facilitated by the use of computer software or spreadsheets. It is intended that a Level 2 evaluation be conducted by an engineer or technician having appropriate training. A Level 2 evaluation may be suitable for use in prioritizing metal-loss anomalies identified by high-resolution inline inspection. (d) A Level 3 evaluation is a detailed analysis of a specific flaw in accordance with a user-defined methodology, with full justification for loadings, boundary conditions, material properties, and failure criteria. It is intended that a Level 3 evaluation be conducted by a technical specialist having appropriate expertise in the subject of fitness-for-service assessment.

1.5 Nomenclature A p local area of metal loss in the longitudinal plane AC p cross-sectional area of Charpy impact specimen A0 p local original metal area p Lt CV p Charpy V-notched impact absorbed energy D p specified outside diameter of the pipe d p depth of the metal loss E p elastic modulus of steel L p length of the metal loss Le p effective length p L(␲/4) M p bulging stress magnification factor MAOP p maximum allowable operating pressure MOP p maximum operating pressure PF p estimated failure pressure p 2SFt/D PO p operating pressure, may equal MAOP or MOP PS p safe operating pressure p PF/SF SF p estimated failure stress level Sflow p flow stress, defined in para. 1.7(b) SO p hoop stress at the operating pressure, calculated as POD/2t SUT p specified ultimate tensile strength at temperature, may equal SMTS SYT p specified yield strength at temperature, may equal SMYS

1.7 Material Properties and Other Data (a) Specified minimum material properties shall be used when conducting Level 0, Level 1, or Level 2 evaluations for the purpose of determining the need for a repair. Actual material properties from mill test reports (MTRs) or laboratory testing, if known with sufficient 2

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ASME B31G-2012

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confidence to warrant their usage, may be used with Level 3 evaluations. Statistical representations of material properties may be used with Levels 1, 2, or 3 for purpose of establishing a probability of failure; however, the details of such analyses are outside the scope of this document. (b) Flow stress is a concept relevant to fracture mechanics and is used in the Level 1, Level 2, and Level 3 evaluations. It is not a property specified in a material grade or finished product standard. Research indicates that it may be defined variously as given below. (1) Sflow for plain carbon steel operating at temperatures below 250°F (120°C) may be defined by Sflow p 1.1 ⴛ SMYS. Sflow shall not exceed SMTS. (2) Sflow for plain carbon and low-alloy steel having SMYS not in excess of 70 ksi (483 MPa) and operating at temperatures below 250°F (120°C) may be defined by Sflow p SMYS + 10 ksi (69 MPa). Sflow shall not exceed SMTS. (3) Sflow for plain carbon and low-alloy steel having SMYS not in excess of 80 ksi (551 MPa) may be defined by Sflow p (SYT + SUT)/2, where SYT and SUT are specified at the operating temperature in accordance with the ASME Boiler and Pressure Vessel Code, Section II, Part D; applicable pipe product specification; or room temperature strength multiplied by the temperature derating factor specified by the applicable construction code. Linear interpolation of strength values is allowed between listed temperatures. (c) This document does not prescribe which definition for flow stress should be used where more than one definition applies. Where more than one definition applies, the various definitions produce acceptable though not necessarily identical results when used with any given evaluation method. It is noted that Sflow was defined as 1.1 ⴛ SMYS in previous editions of B31G. This definition remains an inherent element of the Level 0 assessment and is recommended with the Level 1 assessment performed in accordance with para. 2.2(a). (d) Only the specified nominal wall thickness shall be used for the uncorroded wall thickness when conducting a Level 0 evaluation. If known with confidence, the actual uncorroded wall thickness may be used with a Level 1, Level 2, or Level 3 evaluation, with a suitable adjustment of the hoop stress due to internal pressure. (e) Pipe body material may be considered to have adequate ductile fracture initiation properties for purposes of this Standard if the material operates at a temperature no colder than 100°F (55°C) below the temperature at which 85% shear appearance is observed in a Charpy V-notched impact test. (f) Electric resistance welded (ERW) seams that have been subjected to a normalizing heat treatment, single and double submerged arc welded seams, and girth welds made using the shielded metal arc, gas metal arc, flux cored arc, and submerged arc processes (manual or

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automated, and in any combination) are considered to have adequate ductile fracture initiation properties for purposes of this Standard. Other seam and weld types shall be investigated to establish fracture properties before applying methods described herein to metal loss affecting such welds. Consideration shall be given to the disposition of workmanship flaws or manufacturing flaws within a weld or seam that could interact with metal loss due to corrosion. (g) Some operating conditions, such as lowtemperature service, or long-term exposure to sour environments or to very high temperatures, could adversely affect the ductility and fracture toughness properties of some materials. It is the user’s responsibility to consider such conditions where necessary before applying methods described herein.

1.8 Evaluation Procedure Evaluations shall be carried out in accordance with the procedures described in section 2. In addition, the following considerations apply: (a) Units may be in any self-consistent system. It is the responsibility of the user to determine unitary conversion factors as may be required. (b) This document makes no recommendation as to which evaluation level and evaluation method to select. All methods described herein have been demonstrated to provide reliable and conservative results when they are applied correctly and within stated limitations. Not all methods give identical numerical results or consistent degrees of conservatism. It is the pipeline operator’s responsibility to select an evaluation method, based on experience and judgment, that is consistent with its operating procedures. (c) Original source reference documents for each methodology are cited. Further references may be found in other documents available in the public domain. While each method can be applied as presented, source documents may provide additional information to the user. The user should consider referring to applicable sources as necessary in order to best implement a given method. (d) Other evaluation methods may evolve or come into use which were not contemplated by this document. It is not the intention of this document to prohibit their use, but the user of such methods shall be able to demonstrate that the objective of a safe and reliable assessment of metal loss can be achieved. 1.9 Safety Factors and the Meaning of Acceptance A flaw or anomaly is considered acceptable where the computed failure stress is equal to or greater than the hoop stress at the operating pressure multiplied by a suitable safety factor. There is no single safety factor that is suitable for all types of pipeline construction, for all modes of pipeline operation, or for all types of flaws or anomalies. 3

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ASME B31G-2012

This document recommends a minimum safety factor equal to the ratio of the minimum hydrostatic test pressure required for the given type of pipeline construction to the MAOP or MOP, but usually not less than 1.25. Larger factors of safety may be appropriate in some cases, e.g., in locations of greater risk to the public or the environment. Lesser factors of safety may be justified in some circumstances, e.g., for limited periods of time, or where additional procedures are in place to limit modes of operation, or in a remote location having reduced consequences of failure. In establishing the safety factor for a given pipeline segment, the pipeline operator shall give consideration to the accuracy of corrosion depth and length measurements, rates of corrosion growth, the characteristics of the pipe, the reliability of surge control or excess pressure limiting methods, and the presence of external factors that affect risk. When evaluating anomalies identified by inline inspection, use of larger factors of safety will result in smaller flaws being left in service following field investigation and pipeline repairs. This can increase the reassessment interval to the next inline inspection.

are used to locate and size the flaws. Methods accounting for uncertainty in indirectly sized flaws include increasing the flaw dimension in order to account for detection tool error, or statistical analysis of the probable flaw sizes or risk of failure. Metal-loss corrosion anomalies indicated by inline inspection may be evaluated by a Level 1 or Level 2 evaluation method. The user is cautioned against overstating the precision of evaluations applied with flaw dimensions indicated by inline inspection without adequate calibration or verification of actual flaw sizes by investigations carried out in the field.

1.10 Software The use of commercial or proprietary computer software packages, as well as purpose-written programs or spreadsheets, can greatly facilitate Level 1 evaluations, and is practically a necessity for conducting thorough Level 2 and Level 3 evaluations. It is the user’s responsibility to verify the accuracy and reliability of all software and spreadsheets, and to train personnel in their correct usage. Validation of software should include documented evidence that correct results are obtained over the full range of parameters that could reasonably be expected to occur when making evaluations. The following document summarizes the results of burst tests and service failures of line pipe affected by corrosion or artificial metal loss, and which have previously been used for the purpose of validating the evaluation methods presented herein: Kiefner, J. F., Vieth, P. H., and Roytman, I., “Continued Validation of RSTRENG,” PRCI Catalog No. L51749, Contract PR 218-9304, Dec. 20, 1996. Validation may be demonstrated by comparison of calculated results against published benchmark test data such as that found in the above reference, or against results produced by another recognized evaluation method that have been calculated in accordance with this Standard. Validation of third-party software should also demonstrate that adequate checks or warnings are produced when parameters fall outside ranges that will ensure correct results.

1.13 Flaw Orientation Corrosion caused by disbondment of continuous wrapped coatings may exhibit a helical pattern. If the helical pattern lies at an angle less than 45 deg to the pipe axis, the overall length of the corroded area indicated as L1 in Fig. 1.13-1 shall be considered in the evaluation. If the helical pattern lies at an angle of 45 deg or greater to the pipe axis, it is sufficient to consider the most severe longitudinal section through the corroded area having a length L2 in Fig. 1.13-1. Corrosion may occur with a circumferential orientation, e.g., adjacent to a girth weld. It shall be evaluated for safe operating pressure as with corrosion having a helical angle greater than 45 deg to the pipe axis. Evaluation of the circumferential extent of corrosion subject

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1.12 Flaw Interaction The methods described herein are suitable for evaluating isolated areas of metal loss. Corrosion may occur such that multiple areas of metal loss are closely spaced longitudinally or transversely. If spaced sufficiently closely, the metal loss areas may interact so as to result in failure at a lower pressure than would be expected based on an analysis of the separate flaws. The following guideline is suggested with reference to Fig. 1.12-1, based on limited testing and analysis: (a) Flaws are considered interacting if they are spaced longitudinally or circumferentially from each other within a distance of 3 times the wall thickness (3t). Interacting flaws should be evaluated as a single flaw combined from all interacting flaws. (b) Flaws are considered noninteracting if spaced outside of the above dimensions. Noninteracting flaws should be evaluated as separate flaws. Care should be exercised when grouping or clustering anomalies indicated by inline inspection for purposes of evaluating interaction during the prioritization process. Consideration should be given to minimum thresholds of metal loss for reliable detection and sizing, minimum thresholds for reporting, and the expected mode of coating failure (e.g., localized failure versus disbondment over large areas). Methods employed for clustering of inline inspection anomalies should be validated by field verification of actual flaw dimensions and spacing.

ASME B31G-2012

Fig. 1.12-1 Corrosion Pit Interaction Distances

3t

3t

Longitudinal length

Longitudinal length

Fig. 1.13-1 Helically Oriented Corrosion Pattern Use L1 for angle < 45 deg to pipe axis

Use L2 for angle ≥ 45 deg to pipe axis

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L1

L2

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ASME B31G-2012

operating pressure, while the use of equations given below may show that it is acceptable. The tables were designed to provide a minimum factor of safety of 1.39 for pipelines operating with a hoop stress of 72% of SMYS. Application of the tables to the evaluation of corrosion in pipelines operating at hoop stress levels greater than 72% of SMYS will result in a factor of safety that is proportionately less.

to high axial pipe stresses is outside the scope of this document. For such situations, the user should refer to a more comprehensive fitness-for-purpose guidance document, such as API 579-1/ASME FFS-1.

2

EVALUATION METHODS

2.1 Level 0 Evaluation Tables of allowable length of corrosion are found in section 3. The tables are carried over without change from previous editions of B31G and have been supplemented by the addition of tables in metric units. They were calculated from the equations for a Level 1 evaluation in accordance with the original B31G methodology. They provide a ready reference of maximum corrosion lengths for a range of pipe sizes and depths of corrosion. The tables may be used to determine the maximum allowable longitudinal extent of a contiguous area of corrosion or an interacting cluster of metal loss areas. Evaluations shall be carried out consistent with the procedure described in the following steps: Step 1. Determine pipe diameter and nominal wall thickness from appropriate records or direct measurement of the pipe. Step 2. Determine applicable pipe material properties from appropriate records. Step 3. Clean the corroded pipe surface to bare metal. Care should be taken when cleaning corroded areas of a pressurized pipe. Step 4. Measure the maximum depth of the corroded area, d, and longitudinal extent of the corroded area, L, as shown in Fig. 2.1-1. Step 5. Locate the table corresponding to the size of the pipe, D. Step 6. In the table, locate the row showing a depth equal to the measured maximum depth of the corroded area. If the exact measured value is not listed, choose the row showing the next greater depth. Step 7. Read across to the column showing the wall thickness of the pipe. If the nominal wall thickness is not listed, use the column for the next thinner wall. The value, L, found at the intersection of the wall thickness column and the depth row is the maximum allowable longitudinal extent of such a corroded area. Step 8. The metal loss area on the pipe is acceptable if its measured length, L, does not exceed the value of L given in the table. The tables produce results that may be more conservative than those obtained by performing a Level 1, Level 2, or Level 3 analysis, particularly for operating hoop stress levels less than 72% of SMYS, and also for very long corroded areas. Therefore, the tables may show that a given corroded area is unsuitable for the current

2.2 Level 1 Evaluation Level 1 evaluations shall be carried out consistent with the procedure described in the following steps: Step 1. Determine pipe diameter and nominal wall thickness from appropriate records or direct measurement of the pipe. Step 2. Clean the corroded pipe surface to bare metal. Care should be taken when cleaning corroded areas of a pressurized pipe. Step 3. Measure the maximum depth of the corroded area, d, and longitudinal extent of the corroded area, L, as shown in Fig. 2.1-1. Step 4. Determine applicable pipe material properties from appropriate records. Step 5. Select an evaluation method and calculate the estimated failure stress, SF. Step 6. Define an acceptable safety factor, SF. Step 7. Compare SF to SF ⴛ SO. Step 8. The flaw is acceptable where SF is equal to or greater than SF ⴛ SO, or where PF is equal to or greater than SF ⴛ PO. If the flaw is unacceptable based on Step 8 above, the pressure can be reduced such that it is less than PF/SF. (a) Original B31G M p (1 + 0.8z)1/2

For z ≤ 20,

SF p Sflow

冤

1 − 2⁄3(d/t)

1 − 2⁄3(d/t)/M

For z > 20, SF p Sflow(1 − d/t)

Note that previous editions of B31G incorporated a definition for flow stress of Sflow p 1.1 ⴛ SMYS. For consistency in comparison to results obtained from evaluations performed to an earlier edition, use of the same definition for flow stress is recommended. 6

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冥

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ASME B31G-2012

Fig. 2.1-1 Corrosion Parameters Used in Analysis Longitudinal axis of pipe

Measured longitudinal extent of the corroded area, LM

Measured maximum depth of corrosion d

[References: ANSI/ASME B31G-1984 and ASME B31G-1991.] (b) Modified B31G. For z ≤ 50,

steps described for Level 1, except that the Effective Area Method generally requires several measurements of the depth of corrosion or remaining wall thickness throughout the corroded area. The Effective Area Method is expressed as follows:

M p (1 + 0.6275z − 0.003375z2)1/2

For z > 50,

SF p Sflow M p 0.032z + 3.3 SF p Sflow

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(12)

冤

1 − 0.85(d/t) 1 − 0.85(d/t)/M

冥

冤

The Effective Area Method evaluates, by iteration, all possible combinations of local metal loss, A, with respect to original material, A0. It requires for input a detailed longitudinal distribution or profile of metal loss. The detailed profile is established by obtaining several measurements of metal loss or remaining wall thickness throughout the metal loss area. Such measurements may be arranged in a grid pattern, or may follow a “river bottom” path through the deepest areas of metal loss. Increments of measurement need not be uniform, subject to limitations of application software. If using a grid pattern, the analysis must be repeated along each meridian to establish the governing solution. For a corroded profile defined by n measurements of depth of corrosion including the end points at nominally full wall thickness, n!/2(n − 2)! iterations are required to examine all possible combinations of local metal loss with respect to surrounding remaining material. The local solution resulting in the lowest calculated failure stress shall govern.

[References: (1) Kiefner, J. F., and Vieth, P. H., “Project PR3-805: A Modified Criterion for Evaluating the Remaining Strength of Corroded Pipe,” AGA Catalog No. L51609, Dec. 22, 1989; (2) Kiefner, J. F., and Vieth, P. H., “New Method Corrects Criterion for Evaluating Corroded Pipe,” Oil & Gas Journal, Aug. 6 and Aug. 20, 1990.] (c) API 579 Level 1. The “API 579 Level 1” assessment, when reduced to its simplest form, is of a similar format to the other Level 1 methods presented herein, and therefore qualifies as a Level 1 assessment for purposes of meeting the requirements of this document.

2.3 Level 2 Evaluation Level 2 evaluations are performed using what is known as the Effective Area Method. Level 2 evaluations shall be carried out using a procedure similar to the ten 7

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1 − A/A0 1 − (A/A0)/M

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ASME B31G-2012

and external forces; boundary conditions and constraints; ovality, deformations, misalignments, and discontinuities; material stress–strain characteristics; and effects of the flaw on the overall distribution of loads and stresses. A failure criterion should be developed that considers the strain capacity or fracture resistance characteristics of the material. Similar issues should be considered in developing a suitable safety factor as were described for a Level 1 or Level 2 analysis.

Owing to its iterative nature, it is a practical necessity to use a computer program or other algorithmic approach (e.g., a spreadsheet) in order to carry out an evaluation using the Effective Area Method. The “API 579 Level 2” assessment, when reduced to its simplest form, is equivalent to the Effective Area Method presented herein, and therefore qualifies as a Level 2 assessment for purposes of meeting the requirements of this document. Refer to API 579-1/ASME FFS-1 for detailed instructions. [References: Same as in para. 2.2(b).]

3

TABLES OF ALLOWABLE LENGTH OF CORROSION

The following are applicable to Tables 3-1 through 3-12M: (a) Metal loss having a maximum depth of 10% of the nominal pipe wall thickness or less is not limited as to allowable length. (b) Metal loss having a maximum depth exceeding 80% of the nominal pipe wall thickness shall not be evaluated using the tables of allowable length.

2.4 Level 3 Evaluation A Level 3 evaluation typically involves a detailed analysis, such as a finite element analysis of the corroded region. The analysis should accurately consider or account for all factors that could affect the accuracy of results, including loadings including internal pressure

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ASME B31G-2012

Table 3-1 Values of L for Pipe Sizes ≥ NPS 2 and < NPS 6

(12)

Wall Thickness, t, in.

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Depth, d, in.

0.083

0.109

0.125

0.141

0.154

0.172

0.188

0.218

0.01 0.02 0.03 0.04 0.05

1.99 0.92 0.53 0.39 0.31

No limit 1.94 0.85 0.60 0.47

No limit 2.44 1.13 0.75 0.58

No limit 2.59 1.51 0.93 0.70

No limit 2.71 1.94 1.11 0.82

No limit 2.86 2.86 1.40 1.00

No limit 2.99 2.99 1.74 1.18

No limit No limit 3.22 2.74 1.62

0.06 0.07 0.08 0.09 0.10 0.11

0.25 ... ... ... ... ...

0.39 0.33 0.28 ... ... ...

0.48 0.41 0.35 0.31 0.27 ...

0.58 0.49 0.43 0.38 0.33 0.30

0.66 0.56 0.49 0.43 0.39 0.35

0.79 0.67 0.58 0.51 0.46 0.41

0.92 0.77 0.67 0.59 0.53 0.48

1.21 0.99 0.84 0.74 0.66 0.60

0.12 0.13 0.14 0.15 0.16 0.17

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

0.31 ... ... ... ... ...

0.38 0.34 ... ... ... ...

0.43 0.40 0.37 0.34 ... ...

0.55 0.50 0.46 0.43 0.40 0.37

Table 3-1M Values of L for Pipe Sizes ≥ 60 mm and < 168 mm O.D.

(12)

Wall Thickness, t, mm

Depth, d, mm

2.1

2.8

3.2

3.6

3.9

4.4

4.8

5.5

0.3 0.5 0.8 1.0 1.3

50.5 23.2 13.4 9.8 7.8

No limit 49.1 21.7 15.1 11.9

No limit 62.0 28.7 19.0 14.7

No limit 65.8 38.3 23.7 17.9

No limit 68.8 49.2 28.1 20.8

No limit 72.7 72.7 35.6 25.3

No limit 76.0 76.0 44.2 29.9

No limit No limit 81.9 69.5 41.1

1.5 1.8 2.0 2.3 2.5 2.8

6.4 ... ... ... ... ...

9.8 8.3 7.2 ... ... ...

12.1 10.3 9.0 7.9 6.9 ...

14.6 12.4 10.8 9.5 8.5 7.6

16.8 14.3 12.4 11.0 9.8 8.8

20.1 17.0 14.7 13.0 11.6 10.5

23.4 19.5 16.9 14.9 13.4 12.1

30.7 25.0 21.4 18.8 16.8 15.2

3.0 3.3 3.6 3.8 4.1 4.3

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

8.0 ... ... ... ... ...

9.6 8.7 ... ... ... ...

11.0 10.1 9.3 8.5 ... ...

13.9 12.8 11.8 10.9 10.2 9.5

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ASME B31G-2012

Table 3-2 Values of L for Pipe Sizes ≥ NPS 6 and < NPS 10

(12)

Wall Thickness, t, in.

Depth, d, in.

0.083

0.125

0.156

0.188

0.203

0.219

0.250

0.312

0.01 0.02 0.03 0.04 0.05 0.06

3.32 1.53 0.88 0.65 0.51 0.42

No limit 4.08 1.89 1.25 0.97 0.80

No limit 4.55 3.37 1.90 1.40 1.13

No limit 5.00 5.00 2.91 1.97 1.54

No limit No limit 5.20 3.61 2.30 1.77

No limit No limit 5.40 4.65 2.73 2.04

No limit No limit 5.77 5.77 3.86 2.67

No limit No limit No limit 6.44 6.44 4.77

0.07 0.08 0.09 0.10 0.11 0.12

... ... ... ... ... ...

0.68 0.59 0.52 0.46 ... ...

0.96 0.83 0.74 0.66 0.59 0.54

1.29 1.11 0.98 0.88 0.80 0.73

1.46 1.25 1.10 0.99 0.90 0.82

1.66 1.42 1.24 1.11 1.01 0.92

2.11 1.77 1.54 1.37 1.24 1.13

3.37 2.68 2.26 1.97 1.76 1.60

0.13 0.14 0.15 0.16 0.17 0.18

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

0.66 0.61 0.56 ... ... ...

0.75 0.69 0.64 0.59 ... ...

0.85 0.78 0.72 0.67 0.63 ...

1.04 0.96 0.89 0.83 0.78 0.73

1.46 1.35 1.26 1.18 1.10 1.04

0.19 0.20 0.21 0.22 0.23 0.24

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

0.69 0.65 ... ... ... ...

0.98 0.93 0.88 0.84 0.80 0.76

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ASME B31G-2012

Table 3-2M Values of L for Pipe Sizes ≥ 168 mm and < 273 mm O.D.

(12)

2.1

3.2

4.0

4.8

5.2

5.6

6.4

7.9

0.3 0.5 0.8 1.0 1.3 1.5

84.4 38.8 22.4 16.4 13.0 10.7

No limit 103.6 48.0 31.8 24.6 20.3

No limit 115.7 85.6 48.1 35.5 28.7

No limit 127.0 127.0 73.8 50.0 39.1

No limit No limit 132.0 91.6 58.5 44.9

No limit No limit 137.1 118.1 69.3 51.7

No limit No limit 146.4 146.4 98.0 67.8

No limit No limit No limit 163.6 163.6 121.1

1.8 2.0 2.3 2.5 2.8 3.0

... ... ... ... ... ...

17.3 15.0 13.1 11.6 ... ...

24.3 21.1 18.7 16.7 15.0 13.6

32.6 28.2 24.9 22.3 20.2 18.4

37.1 31.9 28.1 25.1 22.8 20.8

42.2 36.0 31.6 28.3 25.6 23.4

53.6 45.0 39.1 34.8 31.4 28.7

85.5 68.1 57.4 50.2 44.8 40.6

3.3 3.6 3.8 4.1 4.3 4.6

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

16.9 15.5 14.3 ... ... ...

19.1 17.6 16.3 15.1 ... ...

21.5 19.8 18.4 17.1 15.9 ...

26.4 24.4 22.7 21.2 19.8 18.6

37.2 34.4 32.0 29.9 28.0 26.4

4.8 5.1 5.3 5.6 5.8 6.1

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

17.5 16.4 ... ... ... ...

25.0 23.6 22.4 21.3 20.2 19.2

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Wall Thickness, t, mm

Depth, d, mm

ASME B31G-2012

Table 3-3 Values of L for Pipe Sizes ≥ NPS 10 and < NPS 16 Wall Thickness, t, in.

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Depth, d, in.

0.156

0.219

0.250

0.307

0.344

0.365

0.438

0.500

0.02 0.03 0.04 0.05 0.06

5.80 4.29 2.41 1.78 1.44

No limit 6.87 5.92 3.48 2.59

No limit 7.34 7.34 4.91 3.40

No limit No limit 8.14 8.14 5.77

No limit No limit 8.62 8.62 8.62

No limit No limit 8.87 8.87 8.87

No limit No limit No limit 9.72 9.72

No limit No limit No limit 10.39 10.39

0.07 0.08 0.09 0.10 0.11

1.22 1.06 0.94 0.84 0.75

2.11 1.81 1.59 1.42 1.28

2.69 2.26 1.96 1.74 1.57

4.13 3.30 2.80 2.45 2.19

5.53 4.22 3.48 2.99 2.65

6.62 4.85 3.93 3.35 2.94

9.72 8.37 6.10 4.92 4.18

10.39 10.39 9.38 6.95 5.64

0.12 0.13 0.14 0.15 0.16

0.68 ... ... ... ...

1.17 1.08 1.00 0.92 0.86

1.44 1.32 1.22 1.14 1.06

1.98 1.82 1.68 1.56 1.46

2.39 2.18 2.01 1.86 1.74

2.64 2.40 2.21 2.05 1.91

3.67 3.29 2.99 2.75 2.55

4.81 4.23 3.80 3.46 3.19

0.17 0.18 0.19 0.20 0.21 0.22

... ... ... ... ... ...

0.80 ... ... ... ... ...

0.99 0.93 0.88 0.82 ... ...

1.37 1.29 1.22 1.15 1.09 1.04

1.64 1.54 1.46 1.38 1.31 1.25

1.79 1.69 1.60 1.51 1.44 1.37

2.39 2.24 2.12 2.00 1.90 1.81

2.97 2.77 2.61 2.47 2.34 2.23

0.23 0.24 0.25 0.26 0.27 0.28

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

0.99 0.94 ... ... ... ...

1.19 1.13 1.08 1.03 0.99 ...

1.30 1.25 1.19 1.14 1.09 1.05

1.73 1.66 1.59 1.52 1.46 1.41

2.12 2.03 1.95 1.87 1.80 1.73

0.29 0.30 0.31 0.32 0.33 0.34

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

1.00 ... ... ... ... ...

1.35 1.31 1.26 1.21 1.17 1.13

1.67 1.61 1.55 1.50 1.45 1.41

0.35 0.36 0.37 0.38 0.39 0.40

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

1.09 ... ... ... ... ...

1.36 1.32 1.28 1.24 1.20 1.16

12 Copyright ASME International Provided by IHS under license with ASME No reproduction or networking permitted without license from IHS

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ASME B31G-2012

Table 3-3M Values of L for Pipe Sizes ≥ 273 mm and < 406 mm O.D. Wall Thickness, t, mm 4.0

5.6

6.4

7.8

8.7

9.3

11.1

12.7

0.5 0.8 1.0 1.3 1.5

147.4 109.1 61.3 45.2 36.5

No limit 174.6 150.4 88.3 65.9

No limit 186.5 186.5 124.8 86.4

No limit No limit 206.7 206.7 146.6

No limit No limit 218.8 218.8 218.8

No limit No limit 225.4 225.4 225.4

No limit No limit No limit 246.9 246.9

No limit No limit No limit 263.8 263.8

1.8 2.0 2.3 2.5 2.8

30.9 26.9 23.8 21.3 19.2

53.7 45.9 40.3 36.0 32.6

68.2 57.3 49.8 44.3 40.0

104.8 83.9 71.0 62.1 55.5

140.5 107.1 88.3 76.0 67.3

168.1 123.3 99.8 85.0 74.7

246.9 212.7 155.0 124.9 106.1

263.8 263.8 238.4 176.5 143.3

3.0 3.3 3.6 3.8 4.1

17.3 ... ... ... ...

29.8 27.4 25.3 23.4 21.8

36.5 33.6 31.1 28.9 27.0

50.4 46.2 42.7 39.7 37.1

60.6 55.3 51.0 47.4 44.2

67.0 61.0 56.1 52.0 48.5

93.1 83.5 76.0 69.9 64.9

122.2 107.5 96.5 87.9 81.0

4.3 4.6 4.8 5.1 5.3 5.6

... ... ... ... ... ...

20.3 ... ... ... ... ...

25.2 23.7 22.2 20.9 ... ...

34.8 32.8 31.0 29.3 27.8 26.4

41.5 39.1 37.0 35.1 33.3 31.7

45.5 42.9 40.5 38.4 36.5 34.8

60.6 56.9 53.7 50.9 48.4 46.1

75.3 70.5 66.3 62.7 59.4 56.6

5.8 6.1 6.4 6.6 6.9 7.1

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

25.1 23.8 ... ... ... ...

30.2 28.8 27.5 26.3 25.1 ...

33.1 31.7 30.3 29.0 27.7 26.6

44.0 42.1 40.3 38.7 37.2 35.7

54.0 51.6 49.5 47.5 45.7 44.0

7.4 7.6 7.9 8.1 8.4 8.6

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

25.5 ... ... ... ... ...

34.4 33.2 32.0 30.8 29.7 28.7

42.4 40.9 39.5 38.1 36.9 35.7

8.9 9.1 9.4 9.7 9.9 10.2

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

27.7 ... ... ... ... ...

34.6 33.5 32.4 31.4 30.5 29.6

--`,`,,```,,,,`````,``,``,`,,,`-`-`,,`,,`,`,,`---

Depth, d, mm

13 Copyright ASME International Provided by IHS under license with ASME No reproduction or networking permitted without license from IHS

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ASME B31G-2012

Table 3-4 Values of L for Pipe Sizes ≥ NPS 16 and < NPS 20

(12)

Wall Thickness, t, in. 0.188

0.250

0.312

0.344

0.375

0.438

0.500

0.02 0.03 0.04 0.05 0.06

7.77 7.77 4.52 3.06 2.39

No limit 8.96 8.96 6.00 4.15

No limit No limit 10.01 10.01 7.41

No limit No limit 10.51 10.51 10.51

No limit No limit 10.97 10.97 10.97

No limit No limit No limit 11.86 11.86

No limit No limit No limit 12.67 12.67

0.07 0.08 0.09 0.10 0.11

2.00 1.73 1.52 1.37 1.24

3.28 2.75 2.39 2.13 1.92

5.23 4.17 3.51 3.07 2.74

6.75 5.14 4.24 3.65 3.23

8.84 6.34 5.08 4.30 3.77

11.86 10.21 7.44 6.00 5.10

12.67 12.67 11.45 8.48 6.88

14.17 14.17 14.17 14.17 13.85

0.12 0.13 0.14 0.15 0.16

1.13 1.03 0.95 0.87 ...

1.75 1.61 1.49 1.39 1.30

2.48 2.27 2.10 1.96 1.83

2.91 2.66 2.45 2.28 2.13

3.37 3.06 2.81 2.61 2.43

4.47 4.01 3.65 3.36 3.12

5.87 5.16 4.63 4.22 3.89

10.53 8.65 7.43 6.56 5.91

0.17 0.18 0.19 0.20 0.21

... ... ... ... ...

1.21 1.14 1.07 1.00 ...

1.72 1.62 1.53 1.44 1.37

1.99 1.88 1.78 1.68 1.60

2.28 2.15 2.03 1.92 1.83

2.91 2.74 2.58 2.45 2.32

3.62 3.38 3.18 3.01 2.85

5.40 4.99 4.64 4.35 4.10

0.22 0.23 0.24 0.25 0.26

... ... ... ... ...

... ... ... ... ...

1.30 1.24 1.18 ... ...

1.52 1.45 1.38 1.32 1.26

1.74 1.66 1.59 1.52 1.45

2.21 2.11 2.02 1.94 1.86

2.72 2.59 2.48 2.38 2.28

3.88 3.69 3.52 3.36 3.22

0.27 0.28 0.29 0.30 0.31 0.32

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

1.21 ... ... ... ... ...

1.39 1.34 1.28 1.23 ... ...

1.79 1.72 1.65 1.59 1.53 1.48

2.19 2.11 2.03 1.96 1.90 1.83

3.10 2.98 2.87 2.77 2.68 2.59

0.33 0.34 0.35 0.36 0.37 0.38

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

1.43 1.38 1.33 ... ... ...

1.77 1.71 1.66 1.61 1.56 1.51

2.51 2.43 2.36 2.29 2.23 2.16

0.39 0.40 0.41 0.42 0.43 0.44

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

1.46 1.42 ... ... ... ...

2.11 2.05 1.99 1.94 1.89 1.84

0.45 0.46 0.47 0.48 0.49 0.50

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

1.80 1.75 1.71 1.67 1.63 1.59

--`,`,,```,,,,`````,``,``,`,,,`-`-`,,`,,`,`,,`---

Depth, d, in.

14 Copyright ASME International Provided by IHS under license with ASME No reproduction or networking permitted without license from IHS

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0.625 No No No No No

limit limit limit limit limit

ASME B31G-2012

Table 3-4M Values of L for Pipe Sizes ≥ 406 mm and < 508 mm O.D.

(12)

Wall Thickness, t, mm

--`,`,,```,,,,`````,``,``,`,,,`-`-`,,`,,`,`,,`---

Depth, d, mm

4.8

6.4

7.9

8.7

9.5

11.1

12.7

0.5 0.8 1.0 1.3 1.5

197.4 197.4 114.8 77.7 60.8

No limit 227.6 227.6 152.3 105.4

No limit No limit 254.2 254.2 188.2

No limit No limit 267.0 267.0 267.0

No limit No limit 278.7 278.7 278.7

No limit No limit No limit 301.2 301.2

No limit No limit No limit 321.9 321.9

1.8 2.0 2.3 2.5 2.8

50.7 43.8 38.7 34.7 31.4

83.2 69.9 60.8 54.1 48.8

132.9 105.8 89.3 77.9 69.6

171.4 130.6 107.7 92.8 82.1

224.5 161.2 129.1 109.3 95.7

301.2 259.5 189.1 152.4 129.5

321.9 321.9 290.8 215.4 174.8

359.8 359.8 359.8 359.8 351.8

3.0 3.3 3.6 3.8 4.1

28.6 26.2 24.1 22.2 ...

44.5 41.0 37.9 35.3 32.9

63.0 57.8 53.4 49.7 46.4

73.9 67.5 62.2 57.8 54.0

85.6 77.8 71.4 66.2 61.7

113.6 101.8 92.7 85.3 79.1

149.1 131.1 117.7 107.3 98.9

267.5 219.8 188.7 166.7 150.1

4.3 4.6 4.8 5.1 5.3

... ... ... ... ...

30.8 28.9 27.1 25.5 ...

43.6 41.1 38.8 36.7 34.8

50.7 47.7 45.1 42.8 40.6

57.9 54.5 51.5 48.9 46.4

73.9 69.5 65.6 62.1 59.0

91.9 86.0 80.9 76.4 72.5

137.1 126.6 117.9 110.5 104.2

5.6 5.8 6.1 6.4 6.6

... ... ... ... ...

... ... ... ... ...

33.0 31.4 29.9 ... ...

38.6 36.8 35.1 33.5 32.0

44.2 42.2 40.3 38.6 36.9

56.2 53.7 51.3 49.2 47.2

69.0 65.8 63.0 60.3 57.9

98.6 93.7 89.4 85.5 81.9

6.9 7.1 7.4 7.6 7.9 8.1

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

30.6 ... ... ... ... ...

35.4 33.9 32.5 31.2 ... ...

45.4 43.6 42.0 40.4 39.0 37.6

55.7 53.6 51.7 49.9 48.2 46.5

78.7 75.7 72.9 70.4 68.0 65.8

8.4 8.6 8.9 9.1 9.4 9.7

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

36.3 35.0 33.8 ... ... ...

45.0 43.6 42.2 40.9 39.6 38.4

63.7 61.8 60.0 58.2 56.6 55.0

9.9 10.2 10.4 10.7 10.9 11.2

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

37.2 36.1 ... ... ... ...

53.5 52.0 50.7 49.3 48.1 46.9

11.4 11.7 11.9 12.2 12.4 12.7

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

45.7 44.5 43.4 42.4 41.3 40.3

15 Copyright ASME International Provided by IHS under license with ASME No reproduction or networking permitted without license from IHS

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15.9 No No No No No

limit limit limit limit limit

ASME B31G-2012

Table 3-5 Values of L for Pipe Sizes ≥ NPS 20 and < NPS 24 0.219

0.250

0.344

0.406

0.469

0.500

0.562

0.625

0.03 0.04 0.05 0.06 0.07 0.08

9.38 8.08 4.74 3.54 2.88 2.46

10.02 10.02 6.70 4.64 3.66 3.08

No limit 11.75 11.75 11.75 7.54 5.75

No limit No limit 12.77 12.77 12.77 8.86

No limit No limit 13.72 13.72 13.72 13.72

No limit No limit 14.17 14.17 14.17 14.17

No limit No limit No limit 15.02 15.02 15.02

No limit No limit No limit No limit 15.84 15.84

0.09 0.10 0.11 0.12 0.13 0.14

2.16 1.93 1.75 1.60 1.47 1.36

2.68 2.38 2.15 1.96 1.80 1.67

4.74 4.08 3.61 3.26 2.97 2.74

6.83 5.66 4.89 4.34 3.92 3.58

10.21 7.94 6.61 5.73 5.09 4.60

12.80 9.48 7.69 6.56 5.77 5.18

15.02 14.12 10.61 8.67 7.42 6.54

15.84 15.84 15.49 11.77 9.67 8.31

0.15 0.16 0.17 0.18 0.19 0.20

1.26 1.17 1.09 ... ... ...

1.55 1.45 1.36 1.27 1.19 1.12

2.54 2.38 2.23 2.10 1.99 1.88

3.31 3.08 2.89 2.72 2.56 2.43

4.22 3.90 3.64 3.41 3.21 3.04

4.72 4.35 4.04 3.78 3.56 3.36

5.88 5.37 4.95 4.61 4.32 4.07

7.34 6.61 6.04 5.57 5.19 4.87

0.21 0.22 0.23 0.24 0.25 0.26

... ... ... ... ... ...

... ... ... ... ... ...

1.79 1.70 1.62 1.55 1.48 1.41

2.31 2.20 2.10 2.01 1.92 1.84

2.89 2.75 2.63 2.51 2.41 2.31

3.19 3.04 2.90 2.77 2.66 2.55

3.85 3.65 3.48 3.32 3.18 3.05

4.59 4.34 4.13 3.93 3.76 3.61

0.27 0.28 0.29 0.30 0.31 0.32

... ... ... ... ... ...

... ... ... ... ... ...

1.35 ... ... ... ... ...

1.77 1.70 1.64 1.57 1.51 1.46

2.22 2.14 2.06 1.99 1.92 1.85

2.45 2.36 2.27 2.19 2.12 2.05

2.94 2.83 2.73 2.63 2.54 2.46

3.46 3.33 3.21 3.10 2.99 2.90

0.33 0.34 0.35 0.36 0.37 0.38

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

1.79 1.73 1.67 1.62 1.56 ...

1.98 1.92 1.86 1.80 1.74 1.69

2.38 2.31 2.24 2.17 2.11 2.05

2.81 2.72 2.64 2.56 2.49 2.42

0.39 0.40 0.41 0.42 0.43 0.44

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

1.64 1.59 ... ... ... ...

1.99 1.93 1.88 1.83 1.78 1.73

2.35 2.29 2.23 2.17 2.12 2.06

0.45 0.46 0.47 0.48 0.49 0.50

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

2.01 1.96 1.91 1.86 1.82 1.78

16 Copyright ASME International Provided by IHS under license with ASME No reproduction or networking permitted without license from IHS

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--`,`,,```,,,,`````,``,``,`,,,`-`-`,,`,,`,`,,`---

Wall Thickness, t, in.

Depth, d, in.

ASME B31G-2012

Table 3-5M Values of L for Pipe Sizes ≥ 508 mm and < 610 mm O.D. Wall Thickness, t, mm

Depth, d, mm

5.6

6.4

8.7

10.3

11.9

12.7

14.3

15.9

0.8 1.0 1.3 1.5 1.8 2.0

238.1 205.1 120.5 89.8 73.3 62.6

254.4 254.4 170.3 117.8 93.1 78.2

No limit 298.5 298.5 298.5 191.6 146.0

No limit No limit 324.3 324.3 324.3 225.2

No limit No limit 348.5 348.5 348.5 348.5

No limit No limit 359.8 359.8 359.8 359.8

No limit No limit No limit 381.5 381.5 381.5

No limit No limit No limit No limit 402.3 402.3

2.3 2.5 2.8 3.0 3.3 3.6

54.9 49.1 44.4 40.6 37.3 34.5

68.0 60.4 54.6 49.8 45.8 42.4

120.4 103.7 91.8 82.7 75.5 69.6

173.5 143.8 124.3 110.2 99.5 91.0

259.5 201.7 168.0 145.5 129.3 116.9

325.1 240.8 195.4 166.7 146.6 131.6

381.5 358.6 269.5 220.2 188.5 166.1

402.3 402.3 393.4 299.1 245.7 211.0

3.8 4.1 4.3 4.6 4.8 5.1

32.0 29.7 27.7 ... ... ...

39.4 36.8 34.4 32.3 30.3 28.5

64.6 60.4 56.6 53.4 50.5 47.8

84.1 78.3 73.3 69.0 65.1 61.7

107.1 99.1 92.4 86.6 81.6 77.2

119.9 110.5 102.7 96.1 90.4 85.5

149.4 136.4 125.8 117.1 109.6 103.3

186.3 167.8 153.3 141.6 131.8 123.6

5.3 5.6 5.8 6.1 6.4 6.6

... ... ... ... ... ...

... ... ... ... ... ...

45.4 43.2 41.2 39.3 37.5 35.8

58.7 55.9 53.4 51.0 48.9 46.9

73.3 69.8 66.7 63.8 61.1 58.7

81.1 77.1 73.6 70.4 67.5 64.8

97.7 92.8 88.4 84.4 80.9 77.6

116.5 110.3 104.8 99.9 95.5 91.6

6.9 7.1 7.4 7.6 7.9 8.1

... ... ... ... ... ...

... ... ... ... ... ...

34.2 ... ... ... ... ...

45.0 43.2 41.5 39.9 38.4 37.0

56.4 54.3 52.3 50.4 48.7 47.0

62.3 60.0 57.8 55.8 53.8 52.0

74.6 71.8 69.2 66.8 64.6 62.5

88.0 84.6 81.6 78.7 76.1 73.6

8.4 8.6 8.9 9.1 9.4 9.7

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

45.4 43.9 42.4 41.1 39.7 ...

50.3 48.7 47.2 45.7 44.3 42.9

60.5 58.6 56.8 55.1 53.5 52.0

71.3 69.1 67.0 65.1 63.2 61.5

9.9 10.2 10.4 10.7 10.9 11.2

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

41.6 40.3 ... ... ... ...

50.5 49.1 47.7 46.4 45.1 43.9

59.8 58.2 56.6 55.2 53.7 52.4

11.4 11.7 11.9 12.2 12.4 12.7

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

51.1 49.8 48.6 47.4 46.2 45.1

17 --`,`,,```,,,,`````,``,``,`,,,`-`-`,,`,,`,`,,`---

Copyright ASME International Provided by IHS under license with ASME No reproduction or networking permitted without license from IHS

Licensee=Total - France location/5940911030, User=Cabrera, Carlos Not for Resale, 03/20/2014 15:17:23 MDT

ASME B31G-2012

Table 3-6 Values of L for Pipe Sizes ≥ NPS 24 and < NPS 30 Wall Thickness, t, in.

Depth, d, in.

0.250

0.312

0.375

0.438

0.469

0.500

0.562

0.625

0.03 0.04 0.05 0.06 0.07 0.08

10.97 10.97 7.34 5.08 4.01 3.37

No limit 12.26 12.26 9.07 6.41 5.10

No limit 13.44 13.44 13.44 10.83 7.77

No limit No limit 14.53 14.53 14.53 12.51

No limit No limit 15.03 15.03 15.03 15.03

No limit No limit 15.52 15.52 15.52 15.52

No limit No limit No limit 16.45 16.45 16.45

No limit No limit No limit No limit 17.35 17.35

0.09 0.10 0.11 0.12 0.13 0.14

2.93 2.61 2.35 2.15 1.98 1.83

4.30 3.76 3.35 3.04 2.79 2.57

6.22 5.27 4.61 4.13 3.75 3.45

9.12 7.35 6.24 5.48 4.91 4.47

11.19 8.70 7.24 6.28 5.58 5.04

14.02 10.38 8.43 7.19 6.32 5.68

16.45 15.47 11.62 9.50 8.13 7.17

17.35 17.35 16.96 12.90 10.60 9.10

0.15 0.16 0.17 0.18 0.19 0.20

1.70 1.59 1.49 1.39 1.31 1.23

2.39 2.24 2.10 1.98 1.87 1.77

3.19 2.98 2.79 2.63 2.49 2.36

4.11 3.82 3.57 3.35 3.16 2.99

4.62 4.27 3.98 3.74 3.52 3.33

5.17 4.77 4.43 4.15 3.90 3.69

6.44 5.88 5.43 5.05 4.73 4.45

8.04 7.24 6.61 6.11 5.69 5.33

0.21 0.22 0.23 0.24 0.25 0.26

... ... ... ... ... ...

1.68 1.59 1.51 1.44 ... ...

2.24 2.13 2.03 1.94 1.86 1.78

2.85 2.71 2.59 2.48 2.37 2.28

3.16 3.01 2.88 2.75 2.64 2.53

3.50 3.33 3.17 3.04 2.91 2.79

4.21 4.00 3.81 3.64 3.49 3.35

5.02 4.76 4.52 4.31 4.12 3.95

0.27 0.28 0.29 0.30 0.31 0.32

... ... ... ... ... ...

... ... ... ... ... ...

1.71 1.64 1.57 1.51 ... ...

2.19 2.10 2.02 1.95 1.88 1.81

2.43 2.34 2.26 2.17 2.10 2.03

2.69 2.59 2.49 2.40 2.32 2.24

3.22 3.10 2.99 2.88 2.78 2.69

3.79 3.65 3.52 3.39 3.28 3.17

0.33 0.34 0.35 0.36 0.37 0.38

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

1.75 1.69 1.63 ... ... ...

1.96 1.89 1.83 1.77 1.71 ...

2.17 2.10 2.03 1.97 1.91 1.85

2.61 2.53 2.45 2.38 2.31 2.24

3.07 2.98 2.89 2.81 2.73 2.65

0.39 0.40 0.41 0.42 0.43 0.44

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

1.79 1.74 ... ... ... ...

2.18 2.12 2.06 2.00 1.95 1.89

2.58 2.51 2.44 2.38 2.32 2.26

0.45 0.46 0.47 0.48 0.49 0.50

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

2.20 2.15 2.09 2.04 1.99 1.94

18 Copyright ASME International Provided by IHS under license with ASME No reproduction or networking permitted without license from IHS

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Licensee=Total - France location/5940911030, User=Cabrera, Carlos Not for Resale, 03/20/2014 15:17:23 MDT

ASME B31G-2012

Table 3-6M Values of L for Pipe Sizes ≥ 610 mm and < 762 mm O.D. Wall Thickness, t, mm

Depth, d, mm

6.4

7.9

9.5

11.1

11.9

12.7

14.3

15.9

0.8 1.0 1.3 1.5 1.8 2.0

278.7 278.7 186.5 129.1 102.0 85.6

No limit 311.4 311.4 230.5 162.8 129.6

No limit 341.4 341.4 341.4 275.0 197.4

No limit No limit 368.9 368.9 368.9 317.8

No limit No limit 381.8 381.8 381.8 381.8

No limit No limit 394.2 394.2 394.2 394.2

No limit No limit No limit 417.9 417.9 417.9

No limit No limit No limit No limit 440.7 440.7

2.3 2.5 2.8 3.0 3.3 3.6

74.5 66.2 59.8 54.5 50.2 46.4

109.3 95.5 85.2 77.2 70.8 65.4

158.1 133.9 117.2 104.9 95.3 87.5

231.6 186.7 158.6 139.1 124.7 113.5

284.2 221.0 184.0 159.4 141.6 128.1

356.2 263.8 214.1 182.6 160.6 144.2

417.9 392.9 295.2 241.2 206.5 182.0

440.7 440.7 430.9 327.6 269.1 231.1

3.8 4.1 4.3 4.6 4.8 5.1

43.2 40.3 37.7 35.4 33.2 31.2

60.8 56.9 53.4 50.3 47.5 44.9

81.1 75.6 70.9 66.8 63.1 59.8

104.4 96.9 90.6 85.1 80.3 76.1

117.3 108.5 101.2 94.9 89.4 84.6

131.4 121.1 112.5 105.3 99.1 93.6

163.7 149.4 137.8 128.2 120.1 113.1

204.1 183.8 167.9 155.1 144.4 135.4

5.3 5.6 5.8 6.1 6.4 6.6

... ... ... ... ... ...

42.6 40.5 38.5 36.6 ... ...

56.9 54.2 51.7 49.4 47.2 45.2

72.3 68.8 65.7 62.9 60.3 57.8

80.4 76.5 73.0 69.9 67.0 64.3

88.8 84.5 80.6 77.1 73.9 71.0

107.0 101.6 96.8 92.5 88.6 85.0

127.6 120.8 114.8 109.5 104.7 100.3

6.9 7.1 7.4 7.6 7.9 8.1

... ... ... ... ... ...

... ... ... ... ... ...

43.3 41.5 39.9 38.3 ... ...

55.5 53.4 51.4 49.5 47.7 46.1

61.8 59.5 57.3 55.2 53.3 51.5

68.2 65.7 63.3 61.1 59.0 57.0

81.7 78.7 75.8 73.2 70.7 68.4

96.3 92.7 89.3 86.2 83.3 80.6

8.4 8.6 8.9 9.1 9.4 9.7

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

44.4 42.9 41.4 ... ... ...

49.7 48.1 46.5 45.0 43.5 ...

55.1 53.3 51.7 50.0 48.5 47.0

66.2 64.2 62.2 60.4 58.6 56.9

78.1 75.7 73.4 71.3 69.3 67.3

9.9 10.2 10.4 10.7 10.9 11.2

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

45.6 44.2 ... ... ... ...

55.3 53.7 52.2 50.8 49.4 48.1

65.5 63.7 62.0 60.4 58.9 57.4

11.4 11.7 11.9 12.2 12.4 12.7

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

55.9 54.5 53.2 51.9 50.6 49.4

--`,`,,```,,,,`````,``,``,`,,,`-`-`,,`,,`,`,,`---

Copyright ASME International Provided by IHS under license with ASME No reproduction or networking permitted without license from IHS

19 Licensee=Total - France location/5940911030, User=Cabrera, Carlos Not for Resale, 03/20/2014 15:17:23 MDT

ASME B31G-2012

Table 3-7 Values of L for Pipe Sizes ≥ NPS 30 and < NPS 36 0.250

0.312

0.375

0.438

0.500

0.625

0.688

0.03 0.04 0.05 0.06 0.07

12.27 12.27 8.21 5.68 4.49

No limit 13.71 13.71 10.14 7.17

No limit 15.03 15.03 15.03 12.10

No limit No limit 16.24 16.24 16.24

No limit No limit 17.35 17.35 17.35

No limit No limit No limit No limit 19.40

No limit No limit No limit No limit 20.35

0.08 0.09 0.10 0.11 0.12 0.13

3.77 3.28 2.91 2.63 2.40 2.21

5.70 4.81 4.20 3.75 3.40 3.11

8.69 6.96 5.89 5.16 4.62 4.19

13.99 10.19 8.22 6.98 6.12 5.49

17.35 15.68 11.61 9.42 8.04 7.07

19.40 19.40 19.40 18.97 14.42 11.85

20.35 20.35 20.35 20.35 20.35 15.82

0.14 0.15 0.16 0.17 0.18 0.19

2.04 1.90 1.77 1.66 1.56 1.46

2.88 2.68 2.50 2.35 2.21 2.09

3.85 3.57 3.33 3.12 2.94 2.78

5.00 4.60 4.27 3.99 3.75 3.53

6.35 5.78 5.33 4.95 4.63 4.36

10.17 8.98 8.09 7.39 6.83 6.36

13.07 11.25 9.96 8.98 8.21 7.59

0.20 0.21 0.22 0.23 0.24 0.25

1.38 ... ... ... ... ...

1.98 1.88 1.78 1.69 1.61 ...

2.63 2.50 2.38 2.27 2.17 2.08

3.35 3.18 3.03 2.89 2.77 2.65

4.12 3.91 3.72 3.55 3.39 3.25

5.96 5.62 5.32 5.05 4.82 4.61

7.07 6.63 6.26 5.93 5.64 5.38

0.26 0.27 0.28 0.29 0.30 0.31

... ... ... ... ... ...

... ... ... ... ... ...

1.99 1.91 1.83 1.75 1.68 ...

2.54 2.44 2.35 2.26 2.18 2.10

3.12 3.00 2.89 2.79 2.69 2.60

4.42 4.24 4.08 3.93 3.80 3.67

5.15 4.94 4.74 4.57 4.41 4.26

0.32 0.33 0.34 0.35 0.36 0.37

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

2.03 1.96 1.89 1.82 ... ...

2.51 2.43 2.35 2.27 2.20 2.13

3.55 3.44 3.33 3.23 3.14 3.05

4.12 3.99 3.86 3.75 3.64 3.54

0.38 0.39 0.40 0.41 0.42 0.43

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

2.07 2.01 1.94 ... ... ...

2.96 2.88 2.81 2.73 2.66 2.59

3.44 3.35 3.26 3.18 3.10 3.02

0.44 0.45 0.46 0.47 0.48 0.49

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

2.53 2.46 2.40 2.34 2.28 2.23

2.95 2.87 2.81 2.74 2.68 2.62

0.50 0.51 0.52 0.53 0.54 0.55

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

2.17 ... ... ... ... ...

2.56 2.50 2.44 2.39 2.33 2.28

20 Copyright ASME International Provided by IHS under license with ASME No reproduction or networking permitted without license from IHS

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--`,`,,```,,,,`````,``,``,`,,,`-`-`,,`,,`,`,,`---

Wall Thickness, t, in.

Depth, d, in.

ASME B31G-2012

Table 3-7M Values of L for Pipe Sizes ≥ 762 mm and < 914 mm O.D. Wall Thickness, t, mm

Depth, d, mm

6.4

7.9

9.5

11.1

12.7

15.9

17.5

0.8 1.0 1.3 1.5 1.8

311.6 311.6 208.5 144.3 114.0

No limit 348.1 348.1 257.7 182.0

No limit 381.7 381.7 381.7 307.4

No limit No limit 412.5 412.5 412.5

No limit No limit 440.7 440.7 440.7

No limit No limit No limit No limit 492.7

No limit No limit No limit No limit 517.0

2.0 2.3 2.5 2.8 3.0 3.3

95.7 83.2 74.0 66.8 61.0 56.1

144.9 122.2 106.7 95.3 86.3 79.1

220.7 176.8 149.7 131.0 117.2 106.5

355.3 258.9 208.7 177.3 155.6 139.4

440.7 398.2 294.9 239.3 204.1 179.5

492.7 492.7 492.7 481.8 366.3 300.9

517.0 517.0 517.0 517.0 517.0 401.9

3.6 3.8 4.1 4.3 4.6 4.8

51.9 48.3 45.1 42.2 39.6 37.1

73.1 68.0 63.6 59.7 56.2 53.1

97.8 90.6 84.6 79.3 74.7 70.6

126.9 116.8 108.4 101.3 95.1 89.8

161.2 146.9 135.4 125.8 117.7 110.8

258.4 228.2 205.5 187.8 173.4 161.5

331.9 285.8 252.9 228.1 208.6 192.8

5.1 5.3 5.6 5.8 6.1 6.4

34.9 ... ... ... ... ...

50.3 47.7 45.2 43.0 40.9 ...

66.9 63.6 60.6 57.8 55.2 52.8

85.0 80.8 77.0 73.5 70.3 67.4

104.7 99.3 94.5 90.2 86.2 82.6

151.3 142.7 135.1 128.4 122.4 117.0

179.6 168.5 158.9 150.6 143.2 136.6

6.6 6.9 7.1 7.4 7.6 7.9

... ... ... ... ... ...

... ... ... ... ... ...

50.6 48.4 46.5 44.6 42.8 ...

64.6 62.1 59.7 57.5 55.4 53.4

79.3 76.3 73.4 70.8 68.3 65.9

112.2 107.7 103.6 99.9 96.4 93.2

130.7 125.4 120.5 116.0 111.9 108.1

8.1 8.4 8.6 8.9 9.1 9.4

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

51.5 49.7 48.0 46.3 ... ...

63.7 61.6 59.6 57.7 55.9 54.2

90.1 87.3 84.6 82.1 79.7 77.4

104.5 101.2 98.1 95.2 92.5 89.8

9.7 9.9 10.2 10.4 10.7 10.9

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

52.5 50.9 49.4 ... ... ...

75.3 73.2 71.3 69.4 67.6 65.8

87.4 85.0 82.8 80.7 78.6 76.7

11.2 11.4 11.7 11.9 12.2 12.4

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

64.2 62.5 61.0 59.5 58.0 56.6

74.8 73.0 71.3 69.6 68.0 66.4

12.7 13.0 13.2 13.5 13.7 14.0

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

55.2 ... ... ... ... ...

64.9 63.5 62.0 60.6 59.3 58.0

--`,`,,```,,,,`````,``,``,`,,,`-`-`,,`,,`,`,,`---

Copyright ASME International Provided by IHS under license with ASME No reproduction or networking permitted without license from IHS

21 Licensee=Total - France location/5940911030, User=Cabrera, Carlos Not for Resale, 03/20/2014 15:17:23 MDT

ASME B31G-2012

Table 3-8 Values of L for Pipe Sizes ≥ NPS 36 and < NPS 42

(12)

Wall Thickness, t, in.

Depth, d, in.

0.250

0.281

0.312

0.375

0.406

0.469

0.562

0.688

0.03 0.04 0.05 0.06 0.07

13.44 13.44 8.99 6.22 4.92

14.25 14.25 13.40 8.22 6.21

No limit 15.01 15.01 11.11 7.85

No limit 16.46 16.46 16.46 13.26

No limit No limit 17.13 17.13 17.13

No limit No limit 18.41 18.41 18.41

No limit No limit No limit 20.15 20.15

No limit No limit No limit No limit 22.30

0.08 0.09 0.10 0.11 0.12 0.13

4.13 3.59 3.19 2.88 2.63 2.42

5.09 4.37 3.86 3.47 3.15 2.90

6.25 5.27 4.60 4.11 3.72 3.41

9.52 7.62 6.46 5.65 5.06 4.59

11.89 9.16 7.60 6.56 5.82 5.26

18.41 13.70 10.66 8.87 7.69 6.83

20.15 20.15 18.94 14.23 11.63 9.95

22.30 22.30 22.30 22.30 22.30 17.33

0.14 0.15 0.16 0.17 0.18 0.19

2.24 2.08 1.94 1.82 1.71 1.60

2.68 2.50 2.33 2.19 2.06 1.94

3.15 2.93 2.74 2.57 2.42 2.29

4.22 3.91 3.65 3.42 3.22 3.04

4.81 4.44 4.13 3.87 3.64 3.44

6.18 5.66 5.23 4.88 4.58 4.31

8.78 7.89 7.20 6.65 6.18 5.79

14.31 12.33 10.91 9.84 9.00 8.31

0.20 0.21 0.22 0.23 0.24 0.25

1.51 ... ... ... ... ...

1.83 1.73 1.64 ... ... ...

2.17 2.06 1.95 1.85 1.76 ...

2.89 2.74 2.61 2.49 2.38 2.28

3.26 3.10 2.95 2.82 2.70 2.58

4.08 3.87 3.69 3.52 3.37 3.23

5.45 5.16 4.90 4.67 4.46 4.27

7.75 7.27 6.85 6.49 6.18 5.89

0.26 0.27 0.28 0.29 0.30 0.31

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

2.18 2.09 2.00 1.92 1.84 ...

2.48 2.38 2.28 2.19 2.11 2.03

3.10 2.98 2.87 2.76 2.66 2.57

4.10 3.94 3.79 3.66 3.53 3.41

5.64 5.41 5.20 5.00 4.83 4.66

0.32 0.33 0.34 0.35 0.36 0.37

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

1.95 ... ... ... ... ...

2.48 2.40 2.32 2.24 2.17 2.10

3.30 3.19 3.09 3.00 2.91 2.83

4.51 4.37 4.23 4.11 3.99 3.87

0.38 0.39 0.40 0.41 0.42 0.43

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

2.74 2.67 2.59 2.52 2.45 2.38

3.77 3.67 3.57 3.48 3.39 3.31

0.44 0.45 0.46 0.47 0.48 0.49

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

2.32 ... ... ... ... ...

3.23 3.15 3.07 3.00 2.93 2.87

0.50 0.51 0.52 0.53 0.54 0.55

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

2.80 2.74 2.68 2.62 2.56 2.50

--`,`,,```,,,,`````,``,``,`,,,`-`-`,,`,,`,`,,`---

Copyright ASME International Provided by IHS under license with ASME No reproduction or networking permitted without license from IHS

22 Licensee=Total - France location/5940911030, User=Cabrera, Carlos Not for Resale, 03/20/2014 15:17:23 MDT

ASME B31G-2012

Table 3-8M Values of L for Pipe Sizes ≥ 914 mm and < 1 066 mm O.D.

(12)

6.4

7.1

7.9

9.5

10.3

11.9

14.3

17.5

0.8 1.0 1.3 1.5 1.8

341.4 341.4 228.4 158.1 124.9

361.9 361.9 340.2 208.9 157.6

No limit 381.4 381.4 282.3 199.4

No limit 418.1 418.1 418.1 336.8

No limit No limit 435.0 435.0 435.0

No limit No limit 467.6 467.6 467.6

No limit No limit No limit 511.8 511.8

No limit No limit No limit No limit 566.3

2.0 2.3 2.5 2.8 3.0 3.3

104.9 91.2 81.1 73.2 66.8 61.4

129.4 111.0 98.0 88.0 80.1 73.6

158.7 133.9 116.9 104.3 94.6 86.7

241.7 193.6 164.0 143.5 128.4 116.7

302.1 232.8 193.0 166.7 147.9 133.5

467.6 348.1 270.6 225.4 195.2 173.5

511.8 511.8 481.2 361.6 295.4 252.9

566.3 566.3 566.3 566.3 566.3 440.2

3.6 3.8 4.1 4.3 4.6 4.8

56.9 52.9 49.4 46.2 43.3 40.7

68.1 63.4 59.3 55.6 52.3 49.3

80.1 74.5 69.6 65.4 61.6 58.2

107.2 99.3 92.6 86.9 81.8 77.3

122.1 112.8 105.0 98.3 92.5 87.4

156.9 143.7 132.9 123.9 116.2 109.5

222.9 200.5 183.0 168.8 157.0 147.1

363.6 313.1 277.1 249.9 228.5 211.2

5.1 5.3 5.6 5.8 6.1 6.4

38.3 ... ... ... ... ...

46.5 44.0 41.6 ... ... ...

55.1 52.2 49.6 47.1 44.8 ...

73.3 69.7 66.3 63.3 60.5 57.8

82.8 78.7 75.0 71.6 68.5 65.6

103.6 98.4 93.7 89.5 85.6 82.0

138.5 131.1 124.5 118.6 113.3 108.5

196.8 184.6 174.1 164.9 156.9 149.7

6.6 6.9 7.1 7.4 7.6 7.9

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

55.4 53.1 50.9 48.8 46.9 ...

62.9 60.3 58.0 55.7 53.6 51.6

78.7 75.7 72.8 70.2 67.7 65.3

104.1 100.1 96.3 92.9 89.6 86.6

143.2 137.3 132.0 127.1 122.6 118.4

8.1 8.4 8.6 8.9 9.1 9.4

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

49.7 ... ... ... ... ...

63.0 60.9 58.9 56.9 55.1 53.3

83.8 81.1 78.6 76.2 73.9 71.8

114.5 110.9 107.5 104.3 101.3 98.4

9.7 9.9 10.2 10.4 10.7 10.9

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

69.7 67.7 65.8 64.0 62.2 60.5

95.7 93.2 90.7 88.4 86.1 84.0

11.2 11.4 11.7 11.9 12.2 12.4

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

58.9 ... ... ... ... ...

82.0 80.0 78.1 76.3 74.5 72.8

12.7 13.0 13.2 13.5 13.7 14.0

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

71.1 69.5 68.0 66.4 65.0 63.5

23 Copyright ASME International Provided by IHS under license with ASME No reproduction or networking permitted without license from IHS

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--`,`,,```,,,,`````,``,``,`,,,`-`-`,,`,,`,`,,`---

Wall Thickness, t, mm

Depth, d, mm

0.344

No limit 17.03 17.03 17.03 10.93

8.33 6.87 5.92 5.24 4.72

4.31 3.97 3.69 3.44 3.23

3.05 2.88 2.73 2.59 2.46

2.35 2.24 2.14 2.04 1.95 ...

... ... ... ... ... ...

... ... ... ... ... ...

0.03 0.04 0.05 0.06 0.07

0.08 0.09 0.10 0.11 0.12

Copyright ASME International Provided by IHS under license with ASME No reproduction or networking permitted without license from IHS

0.13 0.14 0.15 0.16 0.17

0.18 0.19 0.20 0.21 0.22

0.23 0.24 0.25 0.26 0.27 0.28

0.29 0.30 0.31 0.32 0.33 0.34

0.35 0.36 0.37 0.38 0.39 0.40

24

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... ... ... ... ... ...

2.37 2.28 2.19 2.11 ... ...

3.05 2.91 2.79 2.67 2.57 2.46

3.93 3.72 3.52 3.35 3.19

5.68 5.19 4.80 4.47 4.18

12.85 9.90 8.21 7.09 6.29

No limit No limit 18.50 18.50 18.50

0.406

--`,`,,```,,,,`````,``,``,`,,,`-`-`,,`,,`,`,,`---

Depth, d, in.

2.16 ... ... ... ... ...

2.68 2.58 2.49 2.40 2.31 2.23

3.42 3.27 3.14 3.01 2.89 2.78

4.43 4.18 3.96 3.76 3.59

6.50 5.91 5.44 5.05 4.72

16.55 12.06 9.72 8.26 7.25

No limit No limit 19.21 19.21 19.21

0.438

2.42 2.34 2.27 ... ... ...

2.98 2.88 2.78 2.68 2.59 2.50

3.80 3.64 3.49 3.35 3.22 3.10

4.94 4.66 4.41 4.18 3.99

7.38 6.67 6.11 5.65 5.27

19.88 14.80 11.51 9.58 8.30

No limit No limit 19.88 19.88 19.88

0.469

2.69 2.61 2.52 2.45 2.37 2.30

3.30 3.18 3.07 2.97 2.87 2.78

4.20 4.02 3.85 3.70 3.55 3.42

5.48 5.16 4.88 4.63 4.40

8.36 7.51 6.84 6.31 5.86

20.53 18.55 13.74 11.15 9.51

No limit No limit 20.53 20.53 20.53

0.500

0.562

3.24 3.14 3.05 2.96 2.88 2.80

3.95 3.81 3.68 3.56 3.45 3.34

5.04 4.82 4.61 4.43 4.25 4.10

6.68 6.26 5.89 5.57 5.29

10.75 9.48 8.53 7.78 7.18

21.77 21.77 20.46 15.37 12.56

3.82 3.71 3.61 3.51 3.41 3.32

4.65 4.49 4.34 4.20 4.07 3.94

5.98 5.70 5.45 5.22 5.02 4.83

8.08 7.52 7.05 6.65 6.29

14.02 12.04 10.63 9.57 8.75

22.95 22.95 22.95 22.44 17.06

No limit No limit No limit No limit 22.95

0.625

4.43 4.31 4.19 4.07 3.96 3.86

5.40 5.21 5.04 4.87 4.72 4.57

7.01 6.67 6.36 6.09 5.84 5.61

9.72 8.98 8.37 7.85 7.40

18.72 15.46 13.32 11.78 10.63

24.08 24.08 24.08 24.08 24.08

No limit No limit No limit No limit 24.08

0.688 limit limit limit limit limit

5.07 4.92 4.78 4.65 4.53 4.41

6.20 5.97 5.76 5.57 5.39 5.22

8.15 7.72 7.35 7.02 6.72 6.45

11.65 10.66 9.86 9.20 8.63

25.14 20.25 16.82 14.54 12.89

25.14 25.14 25.14 25.14 25.14

No No No No No

0.750 limit limit limit limit limit

5.73 5.56 5.41 5.26 5.12 4.98

7.05 6.79 6.54 6.32 6.11 5.91

9.42 8.89 8.43 8.03 7.67 7.35

14.00 12.66 11.60 10.74 10.03

26.16 26.16 21.75 18.17 15.75

No limit 26.16 26.16 26.16 26.16

No No No No No

0.812

Wall Thickness, t, in.

limit limit limit limit limit

6.45 6.26 6.07 5.90 5.74 5.59

7.99 7.68 7.39 7.13 6.88 6.66

10.88 10.23 9.66 9.17 8.73 8.34

17.00 15.14 13.71 12.58 11.65

27.16 27.16 27.16 23.31 19.56

No limit 27.16 27.16 27.16 27.16

No No No No No

0.875 limit limit limit limit limit

7.21 6.99 6.78 6.59 6.40 6.23

9.02 8.64 8.30 8.00 7.71 7.45

12.56 11.74 11.04 10.43 9.90 9.43

20.93 18.25 16.28 14.76 13.55

28.12 28.12 28.12 28.12 24.84

No limit No limit 28.12 28.12 28.12

No No No No No

0.938

Values of L for Pipe Sizes ≥ NPS 42 and < NPS 48

No limit No limit No limit 21.77 21.77

Table 3-9

limit limit limit limit limit

8.01 7.76 7.52 7.30 7.09 6.90

10.12 9.68 9.28 8.92 8.59 8.29

14.49 13.45 12.57 11.83 11.18 10.62

26.23 22.22 19.43 17.36 15.77

29.03 29.03 29.03 29.03 29.03

No limit No limit 29.03 29.03 29.03

No No No No No

1.000 limit limit limit limit limit

8.87 8.57 8.30 8.05 7.81 7.59

11.34 10.81 10.34 9.92 9.53 9.18

16.77 15.43 14.33 13.40 12.62 11.93

29.92 27.60 23.48 20.59 18.44

29.92 29.92 29.92 29.92 29.92

No limit No limit No limit 29.92 29.92

No No No No No

1.062 limit limit limit limit limit

9.80 9.46 9.15 8.86 8.59 8.34

12.71 12.08 11.52 11.02 10.57 10.17

19.56 17.81 16.40 15.24 14.26 13.43

30.79 30.79 29.04 24.80 21.80

30.79 30.79 30.79 30.79 30.79

No limit No limit No limit No limit 30.79

No No No No No

1.125 limit limit limit limit limit

10.80 10.41 10.05 9.73 9.42 9.14

14.25 13.49 12.82 12.23 11.70 11.23

23.00 20.67 18.84 17.36 16.15 15.12

31.65 31.65 31.65 30.45 26.11

31.65 31.65 31.65 31.65 31.65

No limit No limit No limit No limit 31.65

No No No No No

1.188

limit limit limit limit limit

limit limit limit limit limit

11.87 11.42 11.01 10.64 10.29 9.97

15.95 15.03 14.24 13.54 12.92 12.37

27.32 24.13 21.72 19.82 18.29 17.02

32.46 32.46 32.46 32.46 31.74

32.46 32.46 32.46 32.46 32.46

No No No No No

No No No No No

1.250

ASME B31G-2012

0.344

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

Depth, d, in.

0.41 0.42 0.43 0.44 0.45 0.46

0.47 0.48 0.49 0.50 0.51 0.52

Copyright ASME International Provided by IHS under license with ASME No reproduction or networking permitted without license from IHS

0.53 0.54 0.55 0.56 0.57 0.58

0.59 0.60 0.61 0.62 0.63 0.64

0.65 0.66 0.67 0.68 0.69 0.70

0.71 0.72 0.73 0.74 0.75 0.76

25

Licensee=Total - France location/5940911030, User=Cabrera, Carlos Not for Resale, 03/20/2014 15:17:23 MDT

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

0.406

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

0.438

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

0.469

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

0.500

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

2.72 2.65 2.57 2.50 ... ...

0.562

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

2.77 2.70 2.64 2.57 ... ...

3.23 3.15 3.07 2.99 2.91 2.84

0.625

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

2.83 2.76 2.70 ... ... ...

3.24 3.17 3.09 3.02 2.96 2.89

3.76 3.66 3.57 3.49 3.40 3.32

0.688

... ... ... ... ... ...

... ... ... ... ... ...

2.88 2.82 ... ... ... ...

3.26 3.19 3.12 3.06 3.00 2.94

3.72 3.64 3.56 3.48 3.40 3.33

4.30 4.19 4.09 3.99 3.90 3.81

0.750

... ... ... ... ... ...

... ... ... ... ... ...

3.29 3.22 3.16 3.10 3.04 2.99

3.70 3.63 3.56 3.49 3.42 3.35

4.21 4.12 4.03 3.94 3.86 3.78

4.86 4.74 4.62 4.51 4.41 4.31

0.812

Wall Thickness, t, in.

... ... ... ... ... ...

3.33 3.27 3.21 3.15 3.10 3.04

3.71 3.64 3.58 3.51 3.45 3.39

4.17 4.08 4.00 3.93 3.85 3.78

4.73 4.62 4.52 4.43 4.34 4.25

5.45 5.31 5.18 5.06 4.95 4.83

0.875

3.37 3.31 3.26 3.21 3.15 ...

3.73 3.66 3.60 3.54 3.48 3.42

4.14 4.07 4.00 3.93 3.86 3.79

4.64 4.55 4.46 4.38 4.30 4.22

5.26 5.15 5.04 4.93 4.83 4.73

6.07 5.92 5.77 5.64 5.50 5.38

0.938

3.74 3.69 3.63 3.57 3.52 3.46

4.13 4.06 3.99 3.93 3.87 3.80

4.58 4.50 4.42 4.34 4.27 4.20

5.12 5.02 4.93 4.84 4.75 4.66

5.81 5.68 5.56 5.44 5.33 5.23

6.71 6.54 6.38 6.22 6.08 5.94

1.000

Values of L for Pipe Sizes ≥ NPS 42 and < NPS 48 (Cont’d)

--`,`,,```,,,,`````,``,``,`,,,`-`-`,,`,,`,`,,`---

Table 3-9

4.13 4.06 4.00 3.94 3.88 3.82

4.54 4.47 4.39 4.32 4.26 4.19

5.03 4.94 4.85 4.77 4.69 4.61

5.62 5.51 5.41 5.31 5.21 5.12

6.38 6.24 6.10 5.97 5.85 5.73

7.39 7.19 7.01 6.84 6.68 6.52

1.062

4.52 4.45 4.39 4.32 4.26 4.20

4.97 4.89 4.81 4.73 4.66 4.59

5.49 5.40 5.31 5.22 5.13 5.05

6.14 6.03 5.91 5.80 5.69 5.59

6.98 6.82 6.67 6.53 6.40 6.27

8.11 7.89 7.69 7.50 7.31 7.14

1.125

4.92 4.85 4.78 4.71 4.64 4.58

5.40 5.32 5.23 5.15 5.07 5.00

5.98 5.87 5.77 5.67 5.58 5.49

6.69 6.56 6.43 6.31 6.19 6.08

7.61 7.43 7.27 7.11 6.96 6.82

8.88 8.63 8.40 8.18 7.98 7.79

1.188

5.33 5.25 5.18 5.10 5.03 4.96

5.84 5.75 5.66 5.57 5.49 5.41

6.46 6.35 6.24 6.14 6.04 5.94

7.24 7.10 6.96 6.83 6.70 6.58

8.25 8.06 7.88 7.71 7.55 7.39

9.67 9.40 9.14 8.90 8.67 8.46

1.250

ASME B31G-2012

Copyright ASME International Provided by IHS under license with ASME No reproduction or networking permitted without license from IHS

0.344

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

Depth, d, in.

0.77 0.78 0.79 0.80 0.81 0.82

0.83 0.84 0.85 0.86 0.87 0.88

0.89 0.90 0.91 0.92 0.93 0.94

0.95 0.96 0.97 0.98 0.99 1.00

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

0.406

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

0.438

--`,`,,```,,,,`````,``,``,`,,,`-`-`,,`,,`,`,,`---

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

0.469

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

0.500

Table 3-9

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

0.562

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

0.625

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

0.688

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

0.750

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

0.812

Wall Thickness, t, in.

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

0.875

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

0.938

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

3.41 3.36 3.30 3.25 ... ...

1.000

Values of L for Pipe Sizes ≥ NPS 42 and < NPS 48 (Cont’d)

... ... ... ... ... ...

... ... ... ... ... ...

3.45 3.40 ... ... ... ...

3.77 3.71 3.66 3.60 3.55 3.50

1.062

... ... ... ... ... ...

3.50 3.45 ... ... ... ...

3.80 3.75 3.70 3.65 3.60 3.55

4.14 4.08 4.02 3.96 3.91 3.85

1.125

3.55 ... ... ... ... ...

3.84 3.79 3.74 3.69 3.64 3.59

4.16 4.10 4.05 3.99 3.94 3.89

4.51 4.45 4.39 4.33 4.27 4.21

1.188

3.87 3.82 3.77 3.73 3.68 3.64

4.17 4.12 4.07 4.02 3.97 3.92

4.51 4.45 4.39 4.34 4.28 4.23

4.89 4.82 4.76 4.69 4.63 4.57

1.250

ASME B31G-2012

26

Licensee=Total - France location/5940911030, User=Cabrera, Carlos Not for Resale, 03/20/2014 15:17:23 MDT

Copyright ASME International Provided by IHS under license with ASME No reproduction or networking permitted without license from IHS

8.7

No limit 432.5 432.5 432.5 277.7

211.6 174.5 150.3 133.0 119.8

109.4 100.8 93.6 87.5 82.1

77.3 73.1 69.3 65.8 62.6

59.6 56.9 54.3 51.9 49.6 ...

... ... ... ... ... ...

... ... ... ... ... ...

0.8 1.0 1.3 1.5 1.8

2.0 2.3 2.5 2.8 3.0

3.3 3.6 3.8 4.1 4.3

4.6 4.8 5.1 5.3 5.6

5.8 6.1 6.4 6.6 6.9 7.1

7.4 7.6 7.9 8.1 8.4 8.6

8.9 9.1 9.4 9.7 9.9 10.2

--`,`,,```,,,,`````,``,``,`,,,`-`-`,,`,,`,`,,`---

Depth, d, mm

27

Licensee=Total - France location/5940911030, User=Cabrera, Carlos Not for Resale, 03/20/2014 15:17:23 MDT

... ... ... ... ... ...

60.2 57.9 55.7 53.6 ... ...

77.3 74.0 70.8 67.9 65.2 62.6

99.9 94.4 89.5 85.0 81.0

144.2 131.9 121.9 113.4 106.2

326.3 251.4 208.4 180.1 159.7

No limit No limit 469.9 469.9 469.9

10.3

54.8 ... ... ... ... ...

68.0 65.5 63.2 60.9 58.8 56.7

87.0 83.2 79.7 76.5 73.5 70.7

112.6 106.2 100.6 95.6 91.1

165.0 150.1 138.1 128.2 119.8

420.4 306.4 246.9 209.8 184.1

No limit No limit 488.1 488.1 488.1

11.1

61.5 59.5 57.6 ... ... ...

75.8 73.1 70.5 68.1 65.8 63.6

96.6 92.4 88.6 85.0 81.7 78.7

125.5 118.3 111.9 106.3 101.2

187.4 169.4 155.2 143.6 133.9

505.0 376.0 292.3 243.4 210.8

No limit No limit 505.0 505.0 505.0

11.9

68.3 66.2 64.1 62.2 60.3 58.4

83.7 80.8 78.0 75.4 72.9 70.6

106.7 102.0 97.8 93.9 90.2 86.9

139.3 131.0 123.8 117.5 111.8

212.4 190.7 173.8 160.2 148.9

521.5 471.2 348.9 283.2 241.5

No limit No limit 521.5 521.5 521.5

12.7

Table 3-9M

82.3 79.9 77.5 75.3 73.1 71.1

100.3 96.8 93.6 90.5 87.6 84.9

128.1 122.4 117.2 112.4 108.1 104.0

169.6 158.9 149.6 141.6 134.4

273.1 240.8 216.6 197.6 182.3

552.8 552.8 519.7 390.5 319.1

No limit No limit No limit 552.8 552.8

14.3

97.1 94.3 91.6 89.1 86.6 84.3

118.2 114.1 110.2 106.6 103.3 100.1

151.9 144.8 138.5 132.7 127.5 122.6

205.2 191.0 179.1 168.8 159.8

356.1 305.7 270.0 243.2 222.2

583.0 583.0 583.0 570.0 433.4

No limit No limit No limit No limit 583.0

15.9

112.6 109.4 106.3 103.4 100.6 98.0

137.3 132.4 127.9 123.7 119.8 116.1

178.2 169.4 161.7 154.7 148.3 142.6

246.8 228.1 212.6 199.4 188.1

475.5 392.7 338.2 299.3 269.9

611.7 611.7 611.7 611.7 611.7

No limit No limit No limit No limit 611.7

17.5 limit limit limit limit limit

128.7 125.0 121.4 118.1 115.0 112.0

157.4 151.7 146.4 141.5 136.9 132.7

206.9 196.2 186.7 178.2 170.6 163.7

295.8 270.8 250.5 233.6 219.3

638.7 514.4 427.3 369.3 327.5

638.7 638.7 638.7 638.7 638.7

No No No No No

19.1 limit limit limit limit limit

145.6 141.3 137.3 133.5 129.9 126.5

179.1 172.4 166.1 160.4 155.1 150.2

239.2 225.9 214.2 204.0 194.8 186.6

355.5 321.6 294.8 272.9 254.7

664.5 664.5 552.4 461.4 400.0

No limit 664.5 664.5 664.5 664.5

No No No No No

20.6

Wall Thickness, t, mm

limit limit limit limit limit

163.8 158.9 154.3 150.0 145.9 142.0

203.0 195.0 187.7 181.0 174.8 169.1

276.4 259.7 245.4 232.8 221.8 211.9

431.9 384.5 348.3 319.5 296.0

689.8 689.8 689.8 592.0 496.8

No limit 689.8 689.8 689.8 689.8

No No No No No

22.2 limit limit limit limit limit

183.2 177.5 172.2 167.3 162.7 158.3

229.0 219.5 210.9 203.1 195.9 189.3

319.1 298.2 280.4 265.0 251.5 239.6

531.7 463.5 413.4 374.9 344.2

714.2 714.2 714.2 714.2 630.8

No limit No limit 714.2 714.2 714.2

No No No No No

23.8 limit limit limit limit limit

203.5 197.0 190.9 185.3 180.1 175.1

257.1 245.8 235.7 226.5 218.2 210.5

368.1 341.6 319.3 300.4 284.0 269.7

666.3 564.4 493.4 441.0 400.5

737.5 737.5 737.5 737.5 737.5

No limit No limit 737.5 737.5 737.5

No No No No No

25.4

Values of L for Pipe Sizes ≥ 1 066 mm and < 1 219 mm O.D.

limit limit limit limit limit

225.2 217.7 210.8 204.4 198.5 192.9

288.0 274.6 262.6 251.9 242.2 233.3

425.9 391.9 363.9 340.5 320.4 303.1

760.0 701.0 596.5 523.0 468.4

760.0 760.0 760.0 760.0 760.0

No limit No limit No limit 760.0 760.0

No No No No No

27.0 limit limit limit limit limit

248.9 240.3 232.3 225.0 218.3 211.9

322.8 306.8 292.6 279.9 268.6 258.2

496.7 452.3 416.5 387.0 362.3 341.1

782.2 782.2 737.6 630.0 553.8

782.2 782.2 782.2 782.2 782.2

No limit No limit No limit No limit 782.2

No No No No No

28.6

limit limit limit limit limit

274.4 264.5 255.4 247.0 239.3 232.1

361.8 342.5 325.6 310.7 297.3 285.3

584.3 524.9 478.5 441.0 410.1 384.1

803.8 803.8 803.8 773.6 663.1

803.8 803.8 803.8 803.8 803.8

No limit No limit No limit No limit 803.8

No No No No No

30.2

limit limit limit limit limit

limit limit limit limit limit

301.6 290.1 279.7 270.2 261.4 253.3

405.2 381.9 361.7 343.9 328.2 314.2

693.8 612.9 551.7 503.5 464.6 432.3

824.5 824.5 824.5 824.5 806.1

824.5 824.5 824.5 824.5 824.5

No No No No No

No No No No No

31.8

ASME B31G-2012

8.7

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

10.4 10.7 10.9 11.2 11.4 11.7

11.9 12.2 12.4 12.7 13.0 13.2

Copyright ASME International Provided by IHS under license with ASME No reproduction or networking permitted without license from IHS

13.5 13.7 14.0 14.2 14.5 14.7

15.0 15.2 15.5 15.7 16.0 16.3

16.5 16.8 17.0 17.3 17.5 17.8

18.0 18.3 18.5 18.8 19.1 19.3

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

10.3

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

11.1

--`,`,,```,,,,`````,``,``,`,,,`-`-`,,`,,`,`,,`---

Depth, d, mm

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

11.9

Table 3-9M

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

12.7

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

69.1 67.2 65.4 63.6 ... ...

14.3

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

70.4 68.6 67.0 65.3 ... ...

82.1 79.9 77.9 75.9 74.0 72.2

15.9

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

71.8 70.2 68.6 ... ... ...

82.4 80.5 78.6 76.8 75.1 73.4

95.5 93.0 90.7 88.5 86.4 84.3

17.5

... ... ... ... ... ...

... ... ... ... ... ...

73.1 71.6 ... ... ... ...

82.8 81.1 79.4 77.7 76.1 74.6

94.5 92.4 90.3 88.3 86.4 84.6

109.1 106.4 103.8 101.3 99.0 96.7

19.1

... ... ... ... ... ...

... ... ... ... ... ...

83.5 81.9 80.3 78.8 77.3 75.8

94.1 92.2 90.3 88.5 86.8 85.1

106.9 104.6 102.3 100.2 98.1 96.0

123.3 120.3 117.4 114.6 111.9 109.4

20.6

Wall Thickness, t, mm

... ... ... ... ... ...

84.5 83.0 81.5 80.1 78.7 77.3

94.2 92.5 90.8 89.2 87.6 86.0

105.8 103.7 101.7 99.8 97.9 96.0

120.0 117.4 114.9 112.5 110.2 108.0

138.4 135.0 131.7 128.6 125.6 122.8

22.2

85.6 84.1 82.8 81.4 80.1 ...

94.7 93.0 91.5 89.9 88.4 87.0

105.2 103.3 101.5 99.7 98.0 96.3

117.9 115.6 113.4 111.2 109.2 107.2

133.6 130.7 127.9 125.3 122.7 120.3

154.2 150.3 146.6 143.1 139.8 136.6

23.8

95.1 93.6 92.1 90.7 89.3 87.9

104.9 103.1 101.4 99.8 98.2 96.6

116.3 114.3 112.3 110.3 108.5 106.6

130.1 127.6 125.2 122.9 120.6 118.4

147.5 144.3 141.2 138.3 135.5 132.7

170.5 166.1 162.0 158.1 154.4 150.9

25.4

Values of L for Pipe Sizes ≥ 1 066 mm and < 1 219 mm O.D. (Cont’d)

104.8 103.2 101.6 100.1 98.6 97.1

115.3 113.4 111.6 109.8 108.1 106.4

127.7 125.4 123.3 121.2 119.2 117.2

142.8 140.0 137.4 134.8 132.4 130.0

161.9 158.4 155.0 151.7 148.6 145.6

187.7 182.7 178.1 173.7 169.6 165.7

27.0

114.8 113.1 111.4 109.8 108.2 106.6

126.1 124.1 122.1 120.2 118.4 116.6

139.6 137.1 134.8 132.5 130.3 128.2

156.1 153.0 150.1 147.3 144.7 142.1

177.2 173.3 169.5 165.9 162.5 159.2

206.0 200.5 195.3 190.4 185.8 181.4

28.6

125.1 123.2 121.4 119.7 118.0 116.3

137.2 135.0 132.9 130.9 128.9 126.9

151.8 149.1 146.6 144.1 141.8 139.4

169.8 166.5 163.3 160.3 157.3 154.5

193.2 188.8 184.7 180.7 176.9 173.3

225.5 219.2 213.4 207.9 202.7 197.8

30.2

135.3 133.4 131.4 129.6 127.7 126.0

148.4 146.1 143.8 141.6 139.4 137.4

164.2 161.3 158.6 155.9 153.3 150.8

183.9 180.2 176.8 173.4 170.2 167.1

209.7 204.8 200.2 195.8 191.7 187.7

245.7 238.7 232.1 226.0 220.2 214.8

31.8

ASME B31G-2012

28

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Copyright ASME International Provided by IHS under license with ASME No reproduction or networking permitted without license from IHS

8.7

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

Depth, d, mm

19.6 19.8 20.1 20.3 20.6 20.8

21.1 21.3 21.6 21.8 22.1 22.4

22.6 22.9 23.1 23.4 23.6 23.9

24.1 24.4 24.6 24.9 25.1 25.4

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

10.3

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

11.1

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

11.9

Table 3-9M

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

12.7

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

14.3

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

15.9

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

17.5

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

19.1

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

20.6

Wall Thickness, t, mm

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

22.2

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

23.8

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

86.6 85.2 83.9 82.7 ... ...

25.4

Values of L for Pipe Sizes ≥ 1 066 mm and < 1 219 mm O.D. (Cont’d)

... ... ... ... ... ...

... ... ... ... ... ...

87.6 86.4 ... ... ... ...

95.7 94.3 92.9 91.5 90.2 88.9

27.0

... ... ... ... ... ...

88.9 87.7 ... ... ... ...

96.5 95.2 93.9 92.6 91.3 90.1

105.1 103.6 102.1 100.7 99.3 97.9

28.6

90.1 ... ... ... ... ...

97.5 96.2 94.9 93.7 92.5 91.3

105.6 104.1 102.8 101.4 100.1 98.7

114.7 113.1 111.5 110.0 108.5 107.0

30.2

98.3 97.1 95.9 94.7 93.5 92.4

106.0 104.6 103.3 102.0 100.8 99.5

114.5 113.1 111.6 110.1 108.7 107.3

124.2 122.5 120.9 119.2 117.6 116.1

31.8

ASME B31G-2012

--`,`,,```,,,,`````,``,``,`,,,`-`-`,,`,,`,`,,`---

29

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0.344

No limit 18.20 18.20 18.20 11.69

8.91 7.35 6.33 5.60 5.04

4.60 4.24 3.94 3.68 3.46 3.26

3.08 2.92 2.77 2.63 2.51 2.39

2.29 2.18 2.09 ... ... ...

... ... ... ... ... ...

Depth, d, in.

0.03 0.04 0.05 0.06 0.07

0.08 0.09 0.10 0.11 0.12

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Copyright ASME International Provided by IHS under license with ASME No reproduction or networking permitted without license from IHS

0.13 0.14 0.15 0.16 0.17 0.18

0.19 0.20 0.21 0.22 0.23 0.24

0.25 0.26 0.27 0.28 0.29 0.30

0.31 0.32 0.33 0.34 0.35 0.36

2.34 2.26 ... ... ... ...

2.98 2.86 2.74 2.63 2.53 2.44

3.97 3.77 3.58 3.41 3.26 3.11

6.07 5.55 5.13 4.77 4.47 4.21

13.73 10.58 8.77 7.58 6.72

No limit No limit 19.78 19.78 19.78

0.406

2.66 2.56 2.47 2.39 2.31 ...

3.35 3.22 3.09 2.97 2.86 2.76

4.47 4.24 4.02 3.83 3.66 3.50

6.94 6.32 5.81 5.40 5.04 4.74

17.69 12.89 10.39 8.83 7.75

No limit No limit 20.54 20.54 20.54

0.438

2.97 2.87 2.77 2.68 2.59 2.50

3.73 3.58 3.44 3.31 3.19 3.08

4.98 4.71 4.47 4.26 4.07 3.89

7.89 7.13 6.53 6.04 5.63 5.28

21.26 15.82 12.30 10.24 8.87

No limit No limit 21.26 21.26 21.26

0.469

3.28 3.17 3.07 2.97 2.88 2.79

4.12 3.95 3.80 3.66 3.52 3.40

5.52 5.21 4.94 4.71 4.49 4.29

8.94 8.03 7.32 6.74 6.27 5.86

21.95 19.83 14.69 11.92 10.16

No limit No limit 21.95 21.95 21.95

0.500

3.94 3.81 3.69 3.57 3.46 3.36

4.93 4.73 4.55 4.38 4.22 4.08

6.69 6.30 5.96 5.66 5.39 5.15

11.49 10.13 9.11 8.32 7.67 7.14

23.27 23.27 21.87 16.44 13.43

No limit No limit No limit 23.27 23.27

4.64 4.49 4.35 4.21 4.09 3.97

5.83 5.59 5.36 5.16 4.97 4.80

8.04 7.54 7.10 6.73 6.39 6.10

14.99 12.87 11.36 10.24 9.35 8.63

24.54 24.54 24.54 23.99 18.24

No limit No limit No limit No limit 24.54

0.625

5.38 5.21 5.04 4.89 4.74 4.60

6.80 6.51 6.24 6.00 5.78 5.57

9.60 8.95 8.39 7.91 7.50 7.13

20.01 16.53 14.23 12.60 11.36 10.39

25.74 25.74 25.74 25.74 25.74

No limit No limit No limit No limit 25.74

0.688 limit limit limit limit limit

6.16 5.95 5.76 5.58 5.42 5.26

7.86 7.50 7.18 6.89 6.63 6.38

11.40 10.54 9.83 9.23 8.71 8.26

26.88 21.65 17.99 15.54 13.78 12.45

26.88 26.88 26.88 26.88 26.88

No No No No No

0.750 limit limit limit limit limit

6.99 6.75 6.53 6.32 6.13 5.95

9.02 8.58 8.20 7.85 7.54 7.25

13.54 12.41 11.49 10.72 10.07 9.51

27.97 27.97 23.25 19.42 16.84 14.96

No limit 27.97 27.97 27.97 27.97

No No No No No

0.812

Wall Thickness, t, in.

limit limit limit limit limit

7.90 7.62 7.36 7.12 6.90 6.69

10.33 9.80 9.33 8.92 8.54 8.21

16.18 14.66 13.45 12.46 11.63 10.93

29.03 29.03 29.03 24.92 20.91 18.18

No limit 29.03 29.03 29.03 29.03

No No No No No

0.875 limit limit limit limit limit

8.88 8.55 8.25 7.97 7.71 7.47

11.80 11.15 10.59 10.09 9.64 9.24

19.51 17.40 15.78 14.49 13.43 12.55

30.06 30.06 30.06 30.06 26.55 22.38

No limit No limit 30.06 30.06 30.06

No No No No No

0.938

Values of L for Pipe Sizes ≥ NPS 48 and < NPS 52

0.562

Table 3-10

limit limit limit limit limit

9.92 9.53 9.18 8.86 8.56 8.29

13.44 12.64 11.95 11.35 10.82 10.35

23.75 20.77 18.56 16.86 15.49 14.38

31.04 31.04 31.04 31.04 31.04 28.04

No limit No limit 31.04 31.04 31.04

No No No No No

1.000 limit limit limit limit limit

11.05 10.60 10.19 9.82 9.48 9.16

15.32 14.33 13.49 12.76 12.12 11.56

29.51 25.10 22.01 19.71 17.93 16.49

31.99 31.99 31.99 31.99 31.99 31.99

No limit No limit No limit 31.99 31.99

No No No No No

1.062 limit limit limit limit limit

12.32 11.78 11.30 10.87 10.47 10.11

17.53 16.29 15.25 14.36 13.59 12.91

32.92 31.05 26.52 23.31 20.91 19.03

32.92 32.92 32.92 32.92 32.92 32.92

No limit No limit No limit No limit 32.92

No No No No No

1.125

limit limit limit limit limit

13.71 13.08 12.51 12.01 11.55 11.13

20.14 18.56 17.26 16.17 15.23 14.42

33.83 33.83 32.56 27.91 24.59 22.09

33.83 33.83 33.83 33.83 33.83 33.83

No limit No limit No limit No limit 33.83

No No No No No

1.188

limit limit limit limit limit

limit limit limit limit limit

15.22 14.48 13.81 13.22 12.69 12.21

23.22 21.19 19.55 18.20 17.05 16.07

34.70 34.70 34.70 33.93 29.20 25.80

34.70 34.70 34.70 34.70 34.70 34.70

No No No No No

No No No No No

1.250

ASME B31G-2012

30

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Copyright ASME International Provided by IHS under license with ASME No reproduction or networking permitted without license from IHS

... ... ... ... ... ...

... ... ... ... ... ...

0.55 0.56 0.57 0.58 0.59 0.60

0.61 0.62 0.63 0.64 0.65 0.66

... ... ... ... ... ...

0.43 0.44 0.45 0.46 0.47 0.48

... ... ... ... ... ...

... ... ... ... ... ...

0.37 0.38 0.39 0.40 0.41 0.42

0.49 0.50 0.51 0.52 0.53 0.54

0.344

Depth, d, in.

31

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

0.406

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

0.438

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

2.42 ... ... ... ... ...

0.469

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

2.70 2.62 2.54 2.46 ... ...

0.500

Table 3-10

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

2.75 2.68 ... ... ... ...

3.26 3.17 3.08 2.99 2.91 2.83

0.562

... ... ... ... ... ...

... ... ... ... ... ...

2.82 2.75 ... ... ... ...

3.28 3.19 3.11 3.04 2.96 2.89

3.86 3.75 3.65 3.55 3.45 3.36

0.625

... ... ... ... ... ...

2.89 ... ... ... ... ...

3.31 3.23 3.16 3.09 3.02 2.95

3.82 3.73 3.64 3.55 3.47 3.39

4.47 4.35 4.23 4.12 4.02 3.92

0.688

... ... ... ... ... ...

3.34 3.27 3.20 3.14 3.07 3.01

3.80 3.72 3.64 3.56 3.48 3.41

4.37 4.26 4.16 4.07 3.98 3.89

5.11 4.97 4.84 4.71 4.59 4.48

0.750

3.38 3.32 3.25 3.19 ... ...

3.80 3.73 3.65 3.58 3.51 3.45

4.31 4.22 4.13 4.04 3.96 3.88

4.94 4.82 4.71 4.60 4.50 4.40

5.78 5.62 5.47 5.33 5.19 5.06

0.812

Wall Thickness, t, in.

3.82 3.75 3.69 3.62 3.55 3.49

4.28 4.20 4.12 4.04 3.97 3.89

4.84 4.74 4.64 4.54 4.45 4.37

5.54 5.41 5.29 5.17 5.05 4.94

6.49 6.31 6.14 5.98 5.83 5.68

0.875

4.27 4.20 4.12 4.05 3.98 3.92

4.77 4.68 4.60 4.51 4.43 4.35

5.39 5.27 5.17 5.06 4.96 4.87

6.17 6.02 5.88 5.75 5.62 5.50

7.25 7.04 6.85 6.66 6.49 6.33

0.938

4.73 4.64 4.57 4.49 4.41 4.34

5.27 5.17 5.08 4.98 4.90 4.81

5.94 5.82 5.70 5.59 5.48 5.37

6.82 6.65 6.50 6.35 6.21 6.07

8.04 7.80 7.58 7.37 7.18 6.99

1.000

Values of L for Pipe Sizes ≥ NPS 48 and < NPS 52 (Cont’d)

5.19 5.10 5.02 4.93 4.85 4.77

5.78 5.67 5.57 5.47 5.37 5.28

6.52 6.39 6.26 6.13 6.01 5.89

7.50 7.31 7.14 6.97 6.82 6.67

8.87 8.60 8.35 8.12 7.90 7.69

1.062

5.67 5.58 5.48 5.40 5.31 5.22

6.32 6.20 6.09 5.98 5.87 5.77

7.13 6.98 6.84 6.70 6.57 6.44

8.22 8.01 7.82 7.63 7.46 7.29

9.78 9.47 9.19 8.92 8.67 8.44

1.125

6.17 6.07 5.97 5.87 5.77 5.68

6.87 6.75 6.62 6.50 6.39 6.28

7.77 7.60 7.45 7.29 7.15 7.01

8.98 8.75 8.53 8.33 8.13 7.95

10.75 10.40 10.07 9.77 9.49 9.23

1.188

6.67 6.56 6.45 6.35 6.25 6.15

7.44 7.30 7.16 7.03 6.91 6.79

8.43 8.24 8.07 7.90 7.74 7.59

9.77 9.51 9.27 9.04 8.82 8.62

11.77 11.37 11.00 10.66 10.34 10.05

1.250

ASME B31G-2012

--`,`,,```,,,,`````,``,``,`,,,`-`-`,,`,,`,`,,`---

Licensee=Total - France location/5940911030, User=Cabrera, Carlos Not for Resale, 03/20/2014 15:17:23 MDT

Copyright ASME International Provided by IHS under license with ASME No reproduction or networking permitted without license from IHS

0.344

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

Depth, d, in.

0.67 0.68 0.69 0.70 0.71 0.72

0.73 0.74 0.75 0.76 0.77 0.78

0.79 0.80 0.81 0.82 0.83 0.84

32

0.85 0.86 0.87 0.88 0.89 0.90

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

0.406

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

0.438

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

0.469

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

0.500

Table 3-10

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

0.562

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

0.625

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

0.688

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

0.750

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

0.812

Wall Thickness, t, in.

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

3.43 3.37 3.31 3.25 ... ...

0.875

... ... ... ... ... ...

... ... ... ... ... ...

3.48 3.43 3.37 ... ... ...

3.85 3.79 3.72 3.66 3.60 3.54

0.938

... ... ... ... ... ...

3.53 3.48 ... ... ... ...

3.88 3.82 3.76 3.70 3.64 3.59

4.27 4.20 4.13 4.07 4.00 3.94

1.000

Values of L for Pipe Sizes ≥ NPS 48 and < NPS 52 (Cont’d)

... ... ... ... ... ...

3.91 3.85 3.80 3.74 3.69 3.63

4.28 4.21 4.15 4.09 4.03 3.97

4.70 4.62 4.55 4.48 4.41 4.34

1.062

3.95 3.90 3.84 3.79 3.74 3.69

4.30 4.24 4.18 4.12 4.06 4.01

4.69 4.62 4.55 4.49 4.42 4.36

5.14 5.06 4.98 4.91 4.83 4.76

1.125

4.32 4.27 4.21 4.16 4.10 4.05

4.69 4.63 4.56 4.50 4.44 4.38

5.11 5.04 4.96 4.89 4.83 4.76

5.59 5.51 5.42 5.34 5.26 5.19

1.188

4.70 4.64 4.58 4.52 4.46 4.40

5.09 5.02 4.95 4.89 4.82 4.76

5.53 5.45 5.38 5.30 5.23 5.16

6.05 5.96 5.87 5.78 5.70 5.61

1.250

ASME B31G-2012

--`,`,,```,,,,`````,``,``,`,,,`-`-`,,`,,`,`,,`---

Licensee=Total - France location/5940911030, User=Cabrera, Carlos Not for Resale, 03/20/2014 15:17:23 MDT

8.7

No limit 462.4 462.4 462.4 296.9

226.2 186.6 160.7 142.2 128.1

116.9 107.8 100.1 93.5 87.8 82.7

78.2 74.1 70.3 66.9 63.8 60.8

58.1 55.5 53.0 ... ... ...

... ... ... ... ... ...

Depth, d, mm

0.8 1.0 1.3 1.5 1.8

Copyright ASME International Provided by IHS under license with ASME No reproduction or networking permitted without license from IHS

2.0 2.3 2.5 2.8 3.0

3.3 3.6 3.8 4.1 4.3 4.6

--`,`,,```,,,,`````,``,``,`,,,`-`-`,,`,,`,`,,`---

4.8 5.1 5.3 5.6 5.8 6.1

6.4 6.6 6.9 7.1 7.4 7.6

7.9 8.1 8.4 8.6 8.9 9.1

33

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59.6 57.3 ... ... ... ...

75.7 72.6 69.7 66.9 64.3 61.9

100.9 95.7 90.9 86.6 82.7 79.1

154.2 141.0 130.3 121.3 113.5 106.8

348.8 268.8 222.8 192.5 170.7

No limit No limit 502.3 502.3 502.3

10.3

67.5 65.1 62.8 60.7 58.6 ...

85.2 81.8 78.5 75.5 72.7 70.0

113.6 107.6 102.2 97.4 93.0 88.9

176.4 160.5 147.7 137.1 128.1 120.3

449.4 327.5 264.0 224.3 196.8

No limit No limit 521.8 521.8 521.8

11.1

75.4 72.8 70.3 68.0 65.8 63.6

94.7 90.9 87.4 84.1 81.0 78.1

126.5 119.7 113.6 108.2 103.3 98.8

200.3 181.1 165.9 153.5 143.1 134.2

539.9 402.0 312.5 260.2 225.4

No limit No limit 539.9 539.9 539.9

11.9

83.4 80.6 78.0 75.4 73.0 70.8

104.5 100.3 96.5 92.9 89.5 86.4

140.1 132.4 125.6 119.5 114.0 109.1

227.1 203.9 185.8 171.2 159.1 148.9

557.5 503.7 373.0 302.7 258.2

No limit No limit 557.5 557.5 557.5

12.7

Table 3-10M

100.0 96.8 93.7 90.8 88.0 85.4

125.3 120.2 115.5 111.2 107.2 103.5

169.9 160.0 151.3 143.7 136.9 130.8

292.0 257.4 231.5 211.3 194.9 181.3

591.0 591.0 555.6 417.5 341.1

No limit No limit No limit 591.0 591.0

14.3

117.8 114.0 110.4 107.0 103.8 100.8

148.0 141.9 136.3 131.1 126.4 121.9

204.2 191.4 180.4 170.8 162.4 154.8

380.6 326.8 288.7 260.0 237.5 219.3

623.3 623.3 623.3 609.4 463.3

No limit No limit No limit No limit 623.3

15.9

136.7 132.2 128.0 124.1 120.4 116.9

172.8 165.3 158.6 152.4 146.8 141.5

243.9 227.2 213.2 201.0 190.5 181.1

508.3 419.8 361.6 320.0 288.6 263.9

653.9 653.9 653.9 653.9 653.9

No limit No limit No limit No limit 653.9

17.5 limit limit limit limit limit

156.5 151.3 146.4 141.8 137.6 133.6

199.6 190.5 182.4 175.0 168.3 162.2

289.5 267.8 249.7 234.4 221.2 209.7

682.8 549.9 456.8 394.8 350.1 316.2

682.8 682.8 682.8 682.8 682.8

No No No No No

19.1 limit limit limit limit limit

177.6 171.5 165.8 160.6 155.7 151.1

229.0 218.0 208.3 199.5 191.5 184.3

343.8 315.1 291.7 272.3 255.7 241.5

710.4 710.4 590.5 493.3 427.7 380.1

No limit 710.4 710.4 710.4 710.4

No No No No No

20.6

Wall Thickness, t, mm

limit limit limit limit limit

200.6 193.5 186.9 180.8 175.1 169.9

262.3 248.9 237.1 226.5 217.0 208.5

411.1 372.3 341.6 316.4 295.5 277.7

737.5 737.5 737.5 632.9 531.1 461.7

No limit 737.5 737.5 737.5 737.5

No No No No No

22.2 limit limit limit limit limit

225.5 217.1 209.4 202.4 195.8 189.8

299.7 283.3 268.9 256.2 244.9 234.7

495.5 442.0 400.8 368.0 341.2 318.8

763.5 763.5 763.5 763.5 674.4 568.4

No limit No limit 763.5 763.5 763.5

No No No No No

23.8 limit limit limit limit limit

252.0 242.2 233.2 225.1 217.5 210.6

341.4 321.1 303.7 288.4 274.8 262.8

603.3 527.5 471.4 428.1 393.5 365.1

788.4 788.4 788.4 788.4 788.4 712.3

No limit No limit 788.4 788.4 788.4

No No No No No

25.4

Values of L for Pipe Sizes ≥ 1 219 mm and < 1 320 mm O.D.

limit limit limit limit limit

280.8 269.3 258.9 249.4 240.7 232.8

389.0 364.0 342.6 324.1 307.9 293.5

749.4 637.7 559.1 500.7 455.3 418.9

812.4 812.4 812.4 812.4 812.4 812.4

No limit No limit No limit 812.4 812.4

No No No No No

27.0 limit limit limit limit limit

312.8 299.3 287.1 276.1 266.0 256.8

445.2 413.8 387.3 364.7 345.1 328.0

836.2 788.6 673.5 592.0 531.0 483.5

836.2 836.2 836.2 836.2 836.2 836.2

No limit No limit No limit No limit 836.2

No No No No No

28.6

limit limit limit limit limit

348.1 332.1 317.8 305.0 293.3 282.7

511.5 471.5 438.4 410.6 386.8 366.2

859.3 859.3 827.0 708.9 624.6 561.2

859.3 859.3 859.3 859.3 859.3 859.3

No limit No limit No limit No limit 859.3

No No No No No

30.2

limit limit limit limit limit

limit limit limit limit limit

386.6 367.7 350.9 335.9 322.4 310.2

589.8 538.3 496.7 462.2 433.1 408.2

881.4 881.4 881.4 861.8 741.7 655.3

881.4 881.4 881.4 881.4 881.4 881.4

No No No No No

No No No No No

31.8

ASME B31G-2012

Copyright ASME International Provided by IHS under license with ASME No reproduction or networking permitted without license from IHS

... ... ... ... ... ...

... ... ... ... ... ...

14.0 14.2 14.5 14.7 15.0 15.2

15.5 15.7 16.0 16.3 16.5 16.8

... ... ... ... ... ...

10.9 11.2 11.4 11.7 11.9 12.2

... ... ... ... ... ...

... ... ... ... ... ...

9.4 9.7 9.9 10.2 10.4 10.7

12.4 12.7 13.0 13.2 13.5 13.7

8.7

--`,`,,```,,,,`````,``,``,`,,,`-`-`,,`,,`,`,,`---

Depth, d, mm

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

10.3

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

11.1

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

61.6 ... ... ... ... ...

11.9

Table 3-10M

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

68.6 66.5 64.4 62.5 ... ...

12.7

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

69.9 68.0 ... ... ... ...

82.9 80.5 78.2 76.0 73.9 71.9

14.3

... ... ... ... ... ...

... ... ... ... ... ...

71.6 69.9 ... ... ... ...

83.3 81.1 79.1 77.1 75.2 73.4

97.9 95.2 92.6 90.1 87.7 85.5

15.9

... ... ... ... ... ...

73.4 ... ... ... ... ...

84.0 82.1 80.3 78.5 76.7 75.0

97.0 94.6 92.4 90.2 88.0 86.0

113.7 110.5 107.6 104.7 102.0 99.5

17.5

... ... ... ... ... ...

84.9 83.1 81.4 79.7 78.1 76.5

96.5 94.4 92.4 90.4 88.5 86.7

111.0 108.3 105.8 103.3 101.0 98.7

129.8 126.3 122.9 119.7 116.7 113.8

19.1

85.9 84.2 82.6 81.1 ... ...

96.6 94.7 92.8 91.0 89.2 87.5

109.4 107.1 104.8 102.7 100.6 98.5

125.5 122.5 119.7 116.9 114.3 111.8

146.8 142.7 138.9 135.3 131.8 128.6

20.6

Wall Thickness, t, mm

97.1 95.3 93.6 91.9 90.3 88.7

108.7 106.6 104.6 102.6 100.7 98.9

122.9 120.3 117.8 115.4 113.1 110.9

140.8 137.5 134.3 131.2 128.3 125.5

164.9 160.3 156.0 151.9 148.0 144.3

22.2

108.5 106.6 104.8 102.9 101.2 99.5

121.2 118.9 116.7 114.6 112.5 110.5

136.8 133.9 131.2 128.6 126.0 123.6

156.8 153.0 149.5 146.1 142.8 139.7

184.1 178.9 173.9 169.2 164.9 160.7

23.8

120.0 118.0 116.0 114.0 112.1 110.3

133.8 131.3 128.9 126.6 124.3 122.1

151.0 147.8 144.8 141.9 139.1 136.4

173.2 169.0 165.1 161.3 157.7 154.2

204.1 198.1 192.5 187.2 182.3 177.6

25.4

27.0

131.8 129.6 127.4 125.3 123.2 121.3

146.9 144.1 141.5 139.0 136.5 134.1

165.7 162.2 158.9 155.7 152.6 149.7

190.4 185.7 181.3 177.1 173.1 169.3

225.4 218.5 212.2 206.2 200.6 195.4

Values of L for Pipe Sizes ≥ 1 219 mm and < 1 320 mm O.D. (Cont’d)

144.1 141.7 139.3 137.0 134.8 132.7

160.5 157.5 154.6 151.9 149.2 146.6

181.2 177.4 173.7 170.2 166.8 163.6

208.8 203.5 198.6 193.9 189.5 185.2

248.4 240.6 233.3 226.6 220.3 214.3

28.6

156.7 154.1 151.5 149.1 146.7 144.4

174.6 171.3 168.2 165.2 162.3 159.4

197.4 193.2 189.1 185.3 181.6 178.0

228.1 222.2 216.7 211.5 206.5 201.9

273.0 264.1 255.8 248.2 241.0 234.4

30.2

169.5 166.7 163.9 161.2 158.7 156.2

189.0 185.4 182.0 178.7 175.5 172.5

214.0 209.3 204.9 200.6 196.6 192.7

248.2 241.6 235.4 229.6 224.1 218.9

299.0 288.8 279.4 270.7 262.7 255.2

31.8

ASME B31G-2012

34

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Copyright ASME International Provided by IHS under license with ASME No reproduction or networking permitted without license from IHS

8.7

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

Depth, d, mm

17.0 17.3 17.5 17.8 18.0 18.3

18.5 18.8 19.1 19.3 19.6 19.8

20.1 20.3 20.6 20.8 21.1 21.3

21.6 21.8 22.1 22.4 22.6 22.9

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

10.3

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

11.1

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

11.9

Table 3-10M

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

12.7

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

14.3

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

15.9

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

17.5

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

19.1

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

20.6

Wall Thickness, t, mm

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

87.1 85.6 84.1 82.7 ... ...

22.2

... ... ... ... ... ...

... ... ... ... ... ...

88.5 87.0 85.6 ... ... ...

97.8 96.2 94.6 93.0 91.5 90.0

23.8

... ... ... ... ... ...

89.7 88.4 ... ... ... ...

98.5 97.0 95.5 94.0 92.5 91.1

108.5 106.7 105.0 103.3 101.7 100.1

25.4

27.0

... ... ... ... ... ...

99.3 97.9 96.4 95.0 93.7 92.3

108.6 107.0 105.4 103.8 102.3 100.8

119.3 117.4 115.6 113.8 112.0 110.3

Values of L for Pipe Sizes ≥ 1 219 mm and < 1 320 mm O.D. (Cont’d)

100.4 99.0 97.6 96.3 95.0 93.7

109.2 107.6 106.1 104.7 103.2 101.8

119.1 117.4 115.7 114.0 112.4 110.7

130.6 128.5 126.6 124.6 122.8 120.9

28.6

109.8 108.4 107.0 105.6 104.2 102.8

119.2 117.6 115.9 114.4 112.8 111.3

129.8 127.9 126.1 124.3 122.6 120.9

142.1 139.9 137.8 135.7 133.7 131.7

30.2

119.3 117.8 116.2 114.8 113.3 111.9

129.2 127.5 125.8 124.1 122.5 120.9

140.5 138.5 136.6 134.7 132.8 131.0

153.7 151.4 149.1 146.9 144.7 142.6

31.8

ASME B31G-2012

--`,`,,```,,,,`````,``,``,`,,,`-`-`,,`,,`,`,,`---

35

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0.406

No limit 20.58 20.58 20.58 14.29

11.01 9.13 7.89 7.00 6.32

5.78 5.34 4.97 4.65 4.38

4.14 3.92 3.73 3.55 3.39

3.24 3.10 2.97 2.85 2.74

2.64 2.54 2.44 2.35 ... ...

Depth, d, in.

0.04 0.05 0.06 0.07 0.08

0.09 0.10 0.11 0.12 0.13

Copyright ASME International Provided by IHS under license with ASME No reproduction or networking permitted without license from IHS

0.14 0.15 0.16 0.17 0.18

0.19 0.20 0.21 0.22 0.23

0.24 0.25 0.26 0.27 0.28

0.29 0.30 0.31 0.32 0.33 0.34

2.98 2.87 2.77 2.67 2.57 2.49

3.64 3.49 3.35 3.22 3.10

4.65 4.41 4.19 3.99 3.81

6.58 6.05 5.62 5.25 4.93

13.42 10.82 9.19 8.06 7.23

No limit 21.38 21.38 21.38 18.42

0.438

3.32 3.20 3.09 2.98 2.88 2.79

4.05 3.88 3.73 3.58 3.45

5.18 4.90 4.66 4.43 4.23

7.42 6.80 6.29 5.86 5.50

16.47 12.81 10.66 9.24 8.21

No limit 22.12 22.12 22.12 22.12

0.469

3.67 3.54 3.42 3.30 3.19 3.09

4.47 4.28 4.11 3.95 3.81

5.74 5.43 5.15 4.90 4.67

8.36 7.61 7.02 6.52 6.10

20.64 15.28 12.41 10.58 9.31

No limit 22.84 22.84 22.84 22.84

0.500

4.39 4.24 4.10 3.97 3.84 3.72

5.36 5.13 4.92 4.73 4.56

6.96 6.56 6.20 5.89 5.61

10.55 9.49 8.66 7.99 7.43

24.22 22.77 17.11 13.98 11.96

No limit No limit 24.22 24.22 24.22

0.562

Table 3-11

5.18 5.00 4.83 4.67 4.52 4.39

6.34 6.07 5.81 5.58 5.37

8.37 7.84 7.39 7.00 6.65

13.39 11.83 10.65 9.73 8.99

25.54 25.54 24.97 18.99 15.60

No limit No limit No limit 25.54 25.54

0.625

6.01 5.80 5.60 5.42 5.25 5.09

7.42 7.08 6.78 6.50 6.25

9.99 9.31 8.73 8.24 7.80

17.20 14.82 13.11 11.82 10.81

26.80 26.80 26.80 26.80 20.83

No limit No limit No limit 26.80 26.80

0.688

6.90 6.64 6.41 6.20 6.00 5.81

8.59 8.18 7.81 7.47 7.17

11.86 10.97 10.23 9.61 9.07

22.54 18.72 16.18 14.35 12.96

27.98 27.98 27.98 27.98 27.98

No limit No limit No limit No limit 27.98

0.750 limit limit limit limit limit

7.85 7.55 7.28 7.03 6.80 6.58

9.89 9.39 8.93 8.53 8.17

14.09 12.91 11.95 11.16 10.48

29.11 24.20 20.21 17.52 15.58

29.11 29.11 29.11 29.11 29.11

No No No No No

0.812

Wall Thickness, t, in.

limit limit limit limit limit

36

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limit limit limit limit limit

10.03 9.62 9.24 8.90 8.58 8.29

13.06 12.28 11.61 11.02 10.50

20.31 18.11 16.42 15.08 13.98

31.29 31.29 31.29 27.63 23.29

No limit 31.29 31.29 31.29 31.29

No No No No No

0.938 limit limit limit limit limit

11.26 10.77 10.32 9.92 9.56 9.22

14.96 13.99 13.16 12.44 11.82

24.72 21.62 19.32 17.54 16.13

32.31 32.31 32.31 32.31 29.19

No limit 29.55 29.55 32.31 32.31

No No No No No

1.000

--`,`,,```,,,,`````,``,``,`,,,`-`-`,,`,,`,`,,`---

8.89 8.54 8.22 7.93 7.66 7.41

11.38 10.75 10.20 9.71 9.28

16.85 15.26 14.00 12.97 12.11

30.22 30.22 25.93 21.76 18.92

30.22 30.22 30.22 30.22 30.22

No No No No No

0.875

Values of L for Pipe Sizes ≥ NPS 52 and < NPS 56

limit limit limit limit limit

12.62 12.03 11.51 11.03 10.61 10.22

17.17 15.94 14.91 14.04 13.28

30.71 26.13 22.91 20.52 18.66

33.29 33.29 33.29 33.29 33.29

No limit No limit 33.29 33.29 33.29

No No No No No

1.062 limit limit limit limit limit

14.14 13.44 12.82 12.26 11.76 11.31

19.81 18.25 16.95 15.87 14.94

34.27 32.31 27.60 24.26 21.76

34.27 34.27 34.27 34.27 34.27

No limit No limit No limit 34.27 34.27

No No No No No

1.125

limit limit limit limit limit

15.85 15.01 14.26 13.61 13.02 12.50

23.00 20.96 19.32 17.97 16.83

35.21 35.21 33.89 29.05 25.60

35.21 35.21 35.21 35.21 35.21

No limit No limit No limit 35.21 35.21

No No No No No

1.188

limit limit limit limit limit

17.75 16.73 15.84 15.07 14.38 13.76

26.85 24.17 22.06 20.35 18.94

36.12 36.12 36.12 35.31 30.39

36.12 36.12 36.12 36.12 36.12

No limit No limit No limit No limit 36.12

No No No No No

1.250

ASME B31G-2012

0.406

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

0.35 0.36 0.37 0.38 0.39 0.40

0.41 0.42 0.43 0.44 0.45 0.46

Copyright ASME International Provided by IHS under license with ASME No reproduction or networking permitted without license from IHS

0.47 0.48 0.49 0.50 0.51 0.52

0.53 0.54 0.55 0.56 0.57 0.58

0.59 0.60 0.61 0.62 0.63 0.64

0.65 0.66 0.67 0.68 0.69 0.70

37

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... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

2.40 ... ... ... ... ...

0.438

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

2.69 2.61 2.52 ... ... ...

0.469

--`,`,,```,,,,`````,``,``,`,,,`-`-`,,`,,`,`,,`---

Depth, d, in.

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

2.99 2.90 2.81 2.72 2.64 2.56

0.500

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

3.03 2.94 2.86 2.79 ... ...

3.61 3.50 3.40 3.30 3.20 3.11

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

3.08 3.01 2.93 2.86 ... ...

3.60 3.50 3.41 3.33 3.24 3.16

4.26 4.13 4.01 3.90 3.80 3.69

0.625

... ... ... ... ... ...

... ... ... ... ... ...

3.14 3.07 3.01 ... ... ...

3.61 3.52 3.44 3.37 3.29 3.22

4.18 4.08 3.97 3.88 3.78 3.69

4.93 4.79 4.66 4.53 4.41 4.29

0.688

... ... ... ... ... ...

3.20 3.14 ... ... ... ...

3.63 3.55 3.48 3.41 3.34 3.27

4.14 4.05 3.96 3.87 3.79 3.71

4.78 4.66 4.55 4.44 4.33 4.23

5.64 5.47 5.32 5.17 5.04 4.90

0.750

... ... ... ... ... ...

3.66 3.59 3.52 3.45 3.39 3.32

4.12 4.04 3.96 3.88 3.80 3.73

4.68 4.58 4.48 4.39 4.30 4.21

5.40 5.27 5.14 5.02 4.90 4.79

6.38 6.19 6.01 5.85 5.69 5.54

0.812

Wall Thickness, t, in.

3.70 3.63 3.57 3.51 3.45 3.39

4.13 4.05 3.98 3.91 3.84 3.77

4.64 4.54 4.46 4.37 4.29 4.21

5.26 5.14 5.03 4.93 4.83 4.73

6.06 5.91 5.77 5.63 5.50 5.38

7.18 6.96 6.76 6.57 6.39 6.22

0.875

4.15 4.08 4.01 3.94 3.87 3.81

4.61 4.53 4.45 4.37 4.29 4.22

5.16 5.06 4.97 4.87 4.78 4.69

5.85 5.73 5.60 5.49 5.38 5.27

6.76 6.59 6.42 6.27 6.13 5.99

8.02 7.78 7.55 7.33 7.13 6.94

0.938

4.59 4.52 4.44 4.37 4.30 4.23

5.10 5.01 4.92 4.83 4.75 4.67

5.70 5.59 5.48 5.38 5.28 5.19

6.46 6.32 6.19 6.06 5.93 5.81

7.47 7.28 7.10 6.93 6.76 6.61

8.91 8.63 8.36 8.12 7.89 7.67

1.000

Values of L for Pipe Sizes ≥ NPS 52 and < NPS 56 (Cont’d)

0.562

Table 3-11

5.05 4.97 4.89 4.81 4.74 4.66

5.59 5.50 5.40 5.31 5.22 5.13

6.25 6.13 6.02 5.91 5.80 5.69

7.09 6.94 6.79 6.65 6.51 6.38

8.22 8.01 7.80 7.61 7.43 7.26

9.86 9.54 9.24 8.95 8.69 8.45

1.062

5.52 5.44 5.35 5.27 5.19 5.11

6.11 6.01 5.90 5.81 5.71 5.62

6.84 6.70 6.58 6.45 6.34 6.22

7.76 7.59 7.43 7.27 7.12 6.97

9.03 8.78 8.56 8.34 8.14 7.95

10.90 10.52 10.18 9.86 9.56 9.28

1.125

6.01 5.92 5.82 5.73 5.65 5.56

6.65 6.53 6.42 6.31 6.21 6.11

7.44 7.29 7.16 7.02 6.89 6.77

8.46 8.27 8.09 7.92 7.75 7.59

9.88 9.60 9.35 9.11 8.88 8.67

12.02 11.59 11.19 10.82 10.48 10.17

1.188

6.50 6.40 6.30 6.20 6.11 6.02

7.19 7.07 6.95 6.83 6.72 6.61

8.06 7.90 7.74 7.60 7.46 7.32

9.18 8.97 8.77 8.58 8.40 8.22

10.76 10.46 10.17 9.90 9.65 9.41

13.21 12.71 12.25 11.83 11.45 11.09

1.250

ASME B31G-2012

Copyright ASME International Provided by IHS under license with ASME No reproduction or networking permitted without license from IHS

... ... ... ... ... ...

... ... ... ... ... ...

0.89 0.90 0.91 0.92 0.93 0.94

0.95 0.96 0.97 0.98 0.99 1.00

... ... ... ... ... ...

0.77 0.78 0.79 0.80 0.81 0.82

... ... ... ... ... ...

... ... ... ... ... ...

0.71 0.72 0.73 0.74 0.75 0.76

0.83 0.84 0.85 0.86 0.87 0.88

0.406

Depth, d, in.

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

0.438

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

0.469

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

0.500

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

0.625

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

0.688

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

0.750

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

0.812

Wall Thickness, t, in.

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

0.875

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

3.75 3.69 3.63 3.57 3.51 ...

0.938

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

3.79 3.73 3.68 3.62 ... ...

4.17 4.10 4.04 3.97 3.91 3.85

1.000

Values of L for Pipe Sizes ≥ NPS 52 and < NPS 56 (Cont’d)

0.562

Table 3-11

... ... ... ... ... ...

... ... ... ... ... ...

3.84 3.78 ... ... ... ...

4.19 4.13 4.07 4.01 3.95 3.89

4.59 4.52 4.45 4.38 4.32 4.25

1.062

... ... ... ... ... ...

3.89 3.84 ... ... ... ...

4.23 4.17 4.11 4.06 4.00 3.95

4.60 4.54 4.47 4.41 4.35 4.29

5.03 4.95 4.88 4.81 4.74 4.67

1.125

3.95 ... ... ... ... ...

4.27 4.21 4.16 4.10 4.05 4.00

4.62 4.56 4.50 4.44 4.38 4.33

5.02 4.95 4.88 4.82 4.75 4.69

5.48 5.40 5.32 5.24 5.17 5.09

1.188

4.31 4.25 4.20 4.15 4.10 4.05

4.64 4.58 4.53 4.47 4.41 4.36

5.02 4.95 4.89 4.83 4.76 4.70

5.44 5.37 5.29 5.22 5.15 5.08

5.93 5.84 5.76 5.68 5.60 5.52

1.250

ASME B31G-2012

--`,`,,```,,,,`````,``,``,`,,,`-`-`,,`,,`,`,,`---

38

Licensee=Total - France location/5940911030, User=Cabrera, Carlos Not for Resale, 03/20/2014 15:17:23 MDT

10.3

No limit 522.8 522.8 522.8 363.1

279.7 231.9 200.4 177.7 160.5

146.8 135.6 126.2 118.2 111.2

105.0 99.6 94.6 90.2 86.1

82.3 78.8 75.6 72.5 69.7

67.0 64.4 62.0 59.7 ... ...

1.0 1.3 1.5 1.8 2.0

2.3 2.5 2.8 3.0 3.3

3.6 3.8 4.1 4.3 4.6

4.8 5.1 5.3 5.6 5.8

6.1 6.4 6.6 6.9 7.1

7.4 7.6 7.9 8.1 8.4 8.6

--`,`,,```,,,,`````,``,``,`,,,`-`-`,,`,,`,`,,`---

Depth, d, mm

Copyright ASME International Provided by IHS under license with ASME No reproduction or networking permitted without license from IHS

75.7 72.9 70.3 67.8 65.4 63.1

92.6 88.7 85.1 81.8 78.6

118.2 112.0 106.4 101.3 96.8

167.0 153.7 142.7 133.3 125.2

340.9 274.8 233.5 204.8 183.6

No limit 543.1 543.1 543.1 467.7

11.1

84.3 81.3 78.5 75.8 73.2 70.8

102.9 98.6 94.6 91.0 87.5

131.6 124.6 118.3 112.6 107.5

188.5 172.7 159.8 148.9 139.7

418.4 325.3 270.8 234.6 208.5

No limit 562.0 562.0 562.0 562.0

11.9

93.2 89.9 86.8 83.9 81.1 78.5

113.5 108.8 104.4 100.4 96.7

145.8 137.8 130.7 124.4 118.7

212.2 193.4 178.2 165.6 155.0

524.3 388.2 315.1 268.7 236.4

No limit 580.2 580.2 580.2 580.2

12.7

111.6 107.7 104.1 100.7 97.5 94.5

136.1 130.4 125.1 120.2 115.8

176.8 166.5 157.5 149.6 142.5

267.9 241.0 219.9 202.9 188.7

615.2 578.3 434.5 355.0 303.9

131.5 126.9 122.7 118.7 114.9 111.4

161.1 154.1 147.7 141.8 136.5

212.6 199.3 187.8 177.8 169.0

340.2 300.5 270.6 247.2 228.3

648.7 648.7 634.3 482.3 396.2

No limit No limit No limit 648.7 648.7

15.9

152.8 147.3 142.3 137.6 133.3 129.2

188.5 179.9 172.1 165.1 158.6

253.8 236.5 221.9 209.2 198.2

437.0 376.3 333.0 300.3 274.6

680.6 680.6 680.6 680.6 529.1

No limit No limit No limit 680.6 680.6

17.5

175.2 168.8 162.9 157.4 152.4 147.6

218.3 207.7 198.3 189.8 182.2

301.3 278.7 259.9 244.0 230.3

572.4 475.5 410.9 364.4 329.1

710.6 710.6 710.6 710.6 710.6

No limit No limit No limit No limit 710.6

19.1 limit limit limit limit limit

199.3 191.8 184.9 178.5 172.6 167.1

251.3 238.4 226.9 216.8 207.6

357.9 328.0 303.6 283.4 266.2

739.4 614.7 513.4 445.1 395.6

739.4 739.4 739.4 739.4 739.4

No No No No No

20.6

Wall Thickness, t, mm

limit limit limit limit limit

225.9 217.0 208.8 201.4 194.5 188.2

289.0 273.0 259.1 246.8 235.8

427.9 387.5 355.5 329.4 307.6

767.6 767.6 658.7 552.8 480.6

767.6 767.6 767.6 767.6 767.6

No No No No No

22.2 limit limit limit limit limit

254.9 244.3 234.7 226.0 218.0 210.6

331.8 311.9 294.8 279.9 266.6

515.8 460.0 417.1 383.0 355.1

794.7 794.7 794.7 701.9 591.7

No limit 794.7 794.7 794.7 794.7

No No No No No

23.8 limit limit limit limit limit

286.1 273.5 262.2 252.0 242.8 234.2

380.0 355.3 334.3 316.1 300.1

628.0 549.0 490.7 445.6 409.6

820.6 820.6 820.6 820.6 741.4

No limit 750.6 750.6 820.6 820.6

No No No No No

25.4

Values of L for Pipe Sizes ≥ 1 320 mm and < 1 422 mm O.D.

No limit No limit 615.2 615.2 615.2

14.3

Table 3-11M

limit limit limit limit limit

320.4 305.5 292.2 280.3 269.4 259.6

436.1 404.9 378.8 356.6 337.3

780.0 663.7 582.0 521.1 473.9

845.6 845.6 845.6 845.6 845.6

No limit No limit 845.6 845.6 845.6

No No No No No

27.0

limit limit limit limit limit

359.2 341.4 325.6 311.5 298.8 287.3

503.2 463.4 430.6 403.1 379.6

870.3 820.8 701.0 616.2 552.7

870.3 870.3 870.3 870.3 870.3

No limit No limit No limit 870.3 870.3

No No No No No

28.6

limit limit limit limit limit

402.6 381.1 362.3 345.7 330.8 317.4

584.1 532.4 490.7 456.3 427.4

894.4 894.4 860.7 737.9 650.1

894.4 894.4 894.4 894.4 894.4

No limit No limit No limit 894.4 894.4

No No No No No

30.2

limit limit limit limit limit

450.8 424.9 402.4 382.7 365.2 349.6

682.0 613.9 560.3 516.9 481.1

917.4 917.4 917.4 897.0 772.0

917.4 917.4 917.4 917.4 917.4

No limit No limit No limit No limit 917.4

No No No No No

31.8

ASME B31G-2012

39

Licensee=Total - France location/5940911030, User=Cabrera, Carlos Not for Resale, 03/20/2014 15:17:23 MDT

10.3

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

Depth, d, mm

8.9 9.1 9.4 9.7 9.9 10.2

10.4 10.7 10.9 11.2 11.4 11.7

--`,`,,```,,,,`````,``,``,`,,,`-`-`,,`,,`,`,,`---

Copyright ASME International Provided by IHS under license with ASME No reproduction or networking permitted without license from IHS

11.9 12.2 12.4 12.7 13.0 13.2

13.5 13.7 14.0 14.2 14.5 14.7

15.0 15.2 15.5 15.7 16.0 16.3

16.5 16.8 17.0 17.3 17.5 17.8

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

60.9 ... ... ... ... ...

11.1

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

68.4 66.2 64.1 ... ... ...

11.9

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

76.0 73.6 71.4 69.2 67.1 65.0

12.7

Table 3-11M

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

76.9 74.8 72.8 70.8 ... ...

91.6 88.9 86.3 83.8 81.4 79.1

14.3

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

78.3 76.4 74.5 72.7 ... ...

91.3 88.9 86.7 84.5 82.3 80.3

108.1 104.9 101.9 99.1 96.4 93.8

15.9

... ... ... ... ... ...

... ... ... ... ... ...

79.8 78.1 76.3 ... ... ...

91.6 89.5 87.5 85.5 83.5 81.7

106.2 103.5 101.0 98.5 96.1 93.8

125.3 121.7 118.3 115.0 112.0 109.0

17.5

... ... ... ... ... ...

81.3 79.6 ... ... ... ...

92.1 90.2 88.3 86.5 84.7 83.0

105.1 102.8 100.5 98.3 96.2 94.1

121.4 118.4 115.5 112.7 110.1 107.6

143.2 139.0 135.1 131.4 127.9 124.6

19.1

... ... ... ... ... ...

92.9 91.1 89.4 87.7 86.0 84.4

104.7 102.6 100.5 98.5 96.6 94.7

119.0 116.4 113.9 111.4 109.1 106.9

137.2 133.8 130.6 127.5 124.5 121.7

162.0 157.3 152.8 148.6 144.6 140.8

20.6

Wall Thickness, t, mm

94.0 92.3 90.7 89.1 87.6 86.0

104.9 102.9 101.0 99.2 97.4 95.7

117.7 115.4 113.2 111.0 108.9 106.8

133.6 130.7 127.9 125.2 122.6 120.1

154.0 150.2 146.5 143.1 139.8 136.6

182.3 176.8 171.7 166.9 162.3 158.1

22.2

105.3 103.5 101.8 100.1 98.4 96.8

117.1 115.0 112.9 111.0 109.0 107.2

131.2 128.6 126.2 123.8 121.5 119.2

148.7 145.5 142.4 139.4 136.6 133.8

171.6 167.3 163.2 159.3 155.6 152.0

203.8 197.5 191.6 186.2 181.0 176.2

23.8

116.7 114.8 112.9 111.1 109.3 107.5

129.4 127.1 124.9 122.8 120.7 118.7

144.8 142.0 139.3 136.7 134.2 131.8

164.1 160.5 157.1 153.9 150.7 147.7

189.7 184.9 180.3 175.9 171.8 167.9

226.4 219.2 212.5 206.2 200.4 194.9

25.4

128.3 126.2 124.2 122.2 120.3 118.4

142.1 139.6 137.2 134.9 132.6 130.4

158.9 155.8 152.9 150.0 147.3 144.6

180.2 176.2 172.4 168.8 165.4 162.1

208.8 203.3 198.2 193.3 188.7 184.3

250.6 242.3 234.6 227.5 220.8 214.6

27.0

Values of L for Pipe Sizes ≥ 1 320 mm and < 1 422 mm O.D. (Cont’d)

140.3 138.1 135.9 133.8 131.7 129.7

155.3 152.6 150.0 147.5 145.0 142.6

173.6 170.3 167.1 163.9 161.0 158.1

197.2 192.8 188.6 184.6 180.8 177.2

229.2 223.1 217.3 211.9 206.7 201.8

276.9 267.3 258.5 250.4 242.8 235.8

28.6

152.7 150.3 147.9 145.6 143.4 141.3

168.9 165.9 163.1 160.4 157.7 155.2

189.0 185.3 181.7 178.3 175.1 171.9

215.0 210.1 205.5 201.1 196.8 192.8

250.9 243.9 237.4 231.3 225.6 220.1

305.3 294.3 284.2 274.9 266.3 258.3

30.2

165.1 162.5 160.0 157.5 155.2 152.8

182.7 179.5 176.4 173.5 170.6 167.8

204.6 200.6 196.7 193.0 189.4 186.0

233.3 227.9 222.8 217.9 213.2 208.8

273.4 265.6 258.3 251.5 245.1 239.0

335.6 322.8 311.2 300.6 290.8 281.8

31.8

ASME B31G-2012

40

Licensee=Total - France location/5940911030, User=Cabrera, Carlos Not for Resale, 03/20/2014 15:17:23 MDT

Copyright ASME International Provided by IHS under license with ASME No reproduction or networking permitted without license from IHS

... ... ... ... ... ...

19.6 19.8 20.1 20.3 20.6 20.8

41

... ... ... ... ... ...

... ... ... ... ... ...

22.6 22.9 23.1 23.4 23.6 23.9

24.1 24.4 24.6 24.9 25.1 25.4

... ... ... ... ... ...

... ... ... ... ... ...

18.0 18.3 18.5 18.8 19.1 19.3

21.1 21.3 21.6 21.8 22.1 22.4

10.3

Depth, d, mm

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

11.1

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

11.9

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

12.7

Table 3-11M

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

14.3

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

15.9

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

17.5

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

19.1

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

20.6

Wall Thickness, t, mm

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

22.2

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

95.2 93.6 92.1 90.6 89.1 ...

23.8

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

96.3 94.8 93.4 92.0 ... ...

105.8 104.1 102.5 100.9 99.4 97.8

25.4

... ... ... ... ... ...

... ... ... ... ... ...

97.5 96.1 ... ... ... ...

106.5 104.9 103.4 101.9 100.4 98.9

116.6 114.8 113.1 111.4 109.7 108.1

27.0

Values of L for Pipe Sizes ≥ 1 320 mm and < 1 422 mm O.D. (Cont’d)

... ... ... ... ... ...

98.9 97.5 ... ... ... ...

107.4 105.9 104.5 103.0 101.6 100.2

116.9 115.3 113.6 112.0 110.5 108.9

127.8 125.9 124.0 122.2 120.4 118.6

28.6

100.3 ... ... ... ... ...

108.4 107.0 105.6 104.3 102.9 101.6

117.4 115.9 114.3 112.8 111.3 109.9

127.6 125.8 124.1 122.4 120.7 119.0

139.2 137.1 135.1 133.2 131.2 129.4

30.2

109.4 108.0 106.7 105.4 104.1 102.8

117.9 116.4 115.0 113.5 112.1 110.7

127.5 125.8 124.2 122.6 121.0 119.4

138.2 136.3 134.5 132.7 130.9 129.2

150.6 148.4 146.3 144.2 142.1 140.2

31.8

ASME B31G-2012

--`,`,,```,,,,`````,``,``,`,,,`-`-`,,`,,`,`,,`---

Licensee=Total - France location/5940911030, User=Cabrera, Carlos Not for Resale, 03/20/2014 15:17:23 MDT

0.406

No limit 21.36 21.36 21.36 14.83

11.43 9.48 8.19 7.26 6.56

6.00 5.54 5.16 4.83 4.54

4.29 4.07 3.87 3.68 3.52

3.36 3.22 3.09 2.96 2.85

2.74 2.63 2.53 2.44 ... ...

Depth, d, in.

0.04 0.05 0.06 0.07 0.08

0.09 0.10 0.11 0.12 0.13

Copyright ASME International Provided by IHS under license with ASME No reproduction or networking permitted without license from IHS

0.14 0.15 0.16 0.17 0.18

0.19 0.20 0.21 0.22 0.23

0.24 0.25 0.26 0.27 0.28

0.29 0.30 0.31 0.32 0.33 0.34

3.09 2.98 2.87 2.77 2.67 2.58

3.78 3.62 3.48 3.34 3.21

4.83 4.57 4.35 4.14 3.95

6.82 6.28 5.83 5.45 5.12

13.93 11.23 9.54 8.37 7.50

No limit 22.19 22.19 22.19 19.11

0.438

3.45 3.32 3.21 3.10 2.99 2.89

4.20 4.03 3.87 3.72 3.58

5.38 5.09 4.83 4.60 4.39

7.70 7.06 6.53 6.08 5.71

17.09 13.29 11.07 9.59 8.52

No limit 22.96 22.96 22.96 22.96

0.469

3.81 3.67 3.55 3.43 3.32 3.21

4.64 4.44 4.27 4.10 3.95

5.96 5.63 5.34 5.08 4.85

8.67 7.90 7.28 6.77 6.33

21.42 15.86 12.87 10.98 9.66

No limit 23.71 23.71 23.71 23.71

0.500

4.56 4.40 4.25 4.11 3.98 3.86

5.56 5.33 5.11 4.91 4.73

7.22 6.80 6.44 6.11 5.82

10.95 9.84 8.98 8.29 7.71

25.13 23.63 17.75 14.50 12.42

No limit No limit 25.13 25.13 25.13

0.562

5.37 5.19 5.01 4.85 4.70 4.55

6.58 6.29 6.03 5.79 5.58

8.68 8.14 7.67 7.27 6.90

13.90 12.28 11.06 10.10 9.33

26.50 26.50 25.91 19.70 16.19

No limit No limit No limit 26.50 26.50

0.625

6.24 6.02 5.81 5.62 5.44 5.28

7.70 7.35 7.03 6.74 6.48

10.37 9.66 9.06 8.55 8.10

17.85 15.37 13.61 12.27 11.22

27.81 27.81 27.81 27.81 21.62

No limit No limit No limit 27.81 27.81

0.688

7.16 6.90 6.65 6.43 6.22 6.03

8.92 8.49 8.10 7.76 7.44

12.31 11.39 10.62 9.97 9.41

23.39 19.43 16.79 14.89 13.45

29.03 29.03 29.03 29.03 29.03

No limit No limit No limit No limit 29.03

0.750 limit limit limit limit limit

8.14 7.84 7.55 7.29 7.05 6.83

10.27 9.74 9.27 8.86 8.48

14.62 13.40 12.41 11.58 10.87

30.21 25.11 20.98 18.19 16.16

30.21 30.21 30.21 30.21 30.21

No No No No No

0.812

Wall Thickness, t, in.

limit limit limit limit limit

9.23 8.86 8.53 8.23 7.95 7.69

11.81 11.16 10.58 10.08 9.63

17.48 15.83 14.52 13.46 12.57

31.36 31.36 26.91 22.58 19.63

31.36 31.36 31.36 31.36 31.36

No No No No No

0.875 limit limit limit limit limit

10.41 9.98 9.59 9.23 8.91 8.61

13.56 12.74 12.05 11.43 10.89

21.07 18.79 17.04 15.65 14.51

32.47 32.47 32.47 28.68 24.17

No limit 32.47 32.47 32.47 32.47

No No No No No

0.938 limit limit limit limit limit

11.69 11.18 10.71 10.30 9.92 9.57

15.53 14.52 13.66 12.91 12.26

25.66 22.43 20.05 18.21 16.73

33.53 33.53 33.53 33.53 30.29

No limit 33.53 33.53 33.53 33.53

No No No No No

1.000

Values of L for Pipe Sizes ≥ NPS 56 Through NPS 60

--`,`,,```,,,,`````,``,``,`,,,`-`-`,,`,,`,`,,`---

Table 3-12

limit limit limit limit limit

13.09 12.48 11.94 11.45 11.01 10.61

17.82 16.54 15.48 14.57 13.78

31.87 27.12 23.78 21.29 19.36

34.55 34.55 34.55 34.55 34.55

No limit No limit 34.55 34.55 34.55

No No No No No

1.062 limit limit limit limit limit

14.68 13.95 13.30 12.73 12.21 11.74

20.56 18.93 17.59 16.47 15.51

35.56 33.53 28.64 25.18 22.58

35.56 35.56 35.56 35.56 35.56

No limit No limit No limit 35.56 35.56

No No No No No

1.125

limit limit limit limit limit

16.45 15.57 14.80 14.12 13.52 12.97

23.86 21.75 20.05 18.64 17.46

36.54 36.54 35.17 30.15 26.56

36.54 36.54 36.54 36.54 36.54

No limit No limit No limit 36.54 36.54

No No No No No

1.188

limit limit limit limit limit

18.42 17.36 16.44 15.64 14.92 14.28

27.86 25.08 22.89 21.12 19.65

37.48 37.48 37.48 36.65 31.54

37.48 37.48 37.48 37.48 37.48

No limit No limit No limit No limit 37.48

No No No No No

1.250

ASME B31G-2012

42

Licensee=Total - France location/5940911030, User=Cabrera, Carlos Not for Resale, 03/20/2014 15:17:23 MDT

0.406

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

Depth, d, in.

0.35 0.36 0.37 0.38 0.39 0.40

0.41 0.42 0.43 0.44 0.45 0.46

Copyright ASME International Provided by IHS under license with ASME No reproduction or networking permitted without license from IHS

0.47 0.48 0.49 0.50 0.51 0.52

0.53 0.54 0.55 0.56 0.57 0.58

0.59 0.60 0.61 0.62 0.63 0.64

0.65 0.66 0.67 0.68 0.69 0.70

43

Licensee=Total - France location/5940911030, User=Cabrera, Carlos Not for Resale, 03/20/2014 15:17:23 MDT

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

2.49 ... ... ... ... ...

0.438

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

2.80 2.70 2.62 ... ... ...

0.469

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

3.11 3.01 2.92 2.83 2.74 2.66

0.500

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

3.14 3.06 2.97 2.89 ... ...

3.74 3.63 3.52 3.42 3.33 3.23

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

3.20 3.12 3.04 2.97 ... ...

3.73 3.63 3.54 3.45 3.36 3.28

4.42 4.29 4.17 4.05 3.94 3.83

0.625

... ... ... ... ... ...

3.32 3.25 ... ... ... ...

3.76 3.69 3.61 3.53 3.46 3.39

4.29 4.20 4.11 4.02 3.93 3.85

4.96 4.84 4.72 4.61 4.50 4.39

5.85 5.68 5.52 5.37 5.23 5.09

0.750

... ... ... ... ... ...

3.79 3.72 3.65 3.58 3.51 3.45

4.28 4.19 4.11 4.02 3.95 3.87

4.86 4.75 4.65 4.55 4.46 4.37

5.61 5.47 5.34 5.21 5.09 4.97

6.62 6.43 6.24 6.07 5.91 5.75

0.812

--`,`,,```,,,,`````,``,``,`,,,`-`-`,,`,,`,`,,`---

... ... ... ... ... ...

... ... ... ... ... ...

3.26 3.19 3.12 ... ... ...

3.74 3.66 3.57 3.49 3.41 3.34

4.34 4.23 4.13 4.02 3.93 3.83

5.12 4.97 4.83 4.70 4.57 4.45

0.688

Wall Thickness, t, in.

3.84 3.77 3.71 3.64 3.58 3.51

4.28 4.20 4.13 4.05 3.98 3.91

4.81 4.72 4.62 4.53 4.45 4.37

5.46 5.34 5.22 5.12 5.01 4.91

6.29 6.14 5.99 5.85 5.71 5.58

7.45 7.22 7.01 6.82 6.63 6.46

0.875

4.30 4.23 4.16 4.09 4.02 3.95

4.78 4.70 4.61 4.53 4.45 4.38

5.36 5.26 5.15 5.06 4.96 4.87

6.07 5.94 5.82 5.70 5.58 5.47

7.01 6.83 6.67 6.51 6.36 6.21

8.33 8.07 7.83 7.61 7.40 7.20

0.938

4.77 4.69 4.61 4.54 4.46 4.39

5.29 5.19 5.10 5.02 4.93 4.85

5.92 5.80 5.69 5.59 5.48 5.38

6.71 6.56 6.42 6.29 6.16 6.03

7.75 7.55 7.37 7.19 7.02 6.86

9.25 8.96 8.68 8.43 8.19 7.96

1.000

Values of L for Pipe Sizes ≥ NPS 56 Through NPS 60 (Cont’d)

0.562

Table 3-12

5.24 5.16 5.07 4.99 4.92 4.84

5.80 5.70 5.60 5.51 5.42 5.33

6.49 6.37 6.25 6.13 6.02 5.91

7.36 7.20 7.05 6.90 6.76 6.62

8.53 8.31 8.10 7.90 7.71 7.53

10.24 9.90 9.58 9.29 9.02 8.77

1.062

5.73 5.64 5.55 5.47 5.38 5.30

6.34 6.23 6.13 6.02 5.92 5.83

7.09 6.96 6.83 6.70 6.58 6.46

8.06 7.88 7.71 7.54 7.39 7.24

9.37 9.11 8.88 8.66 8.45 8.25

11.31 10.92 10.56 10.23 9.92 9.63

1.125

6.24 6.14 6.04 5.95 5.86 5.77

6.90 6.78 6.66 6.55 6.44 6.34

7.72 7.57 7.43 7.29 7.15 7.02

8.78 8.58 8.39 8.21 8.04 7.88

10.25 9.97 9.70 9.45 9.22 8.99

12.47 12.02 11.61 11.23 10.88 10.55

1.188

6.75 6.64 6.54 6.44 6.34 6.24

7.46 7.33 7.21 7.09 6.97 6.86

8.36 8.19 8.04 7.88 7.74 7.60

9.53 9.31 9.10 8.90 8.71 8.53

11.17 10.85 10.55 10.27 10.01 9.76

13.71 13.19 12.72 12.28 11.88 11.51

1.250

ASME B31G-2012

--`,`,,```,,,,`````,``,`

Copyright ASME International Provided by IHS under license with ASME No reproduction or networking permitted without license from IHS

... ... ... ... ... ...

... ... ... ... ... ...

0.89 0.90 0.91 0.92 0.93 0.94

0.95 0.96 0.97 0.98 0.99 1.00

... ... ... ... ... ...

0.77 0.78 0.79 0.80 0.81 0.82

... ... ... ... ... ...

... ... ... ... ... ...

0.71 0.72 0.73 0.74 0.75 0.76

0.83 0.84 0.85 0.86 0.87 0.88

0.406

Depth, d, in.

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

0.438

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

0.469

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

0.500

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

0.625

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

0.688

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

0.750

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

0.812

Wall Thickness, t, in.

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

0.875

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

3.89 3.83 3.76 3.70 3.64 ...

0.938

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

3.94 3.87 3.82 3.76 ... ...

4.32 4.26 4.19 4.12 4.06 4.00

1.000

Values of L for Pipe Sizes ≥ NPS 56 Through NPS 60 (Cont’d)

0.562

Table 3-12

... ... ... ... ... ...

... ... ... ... ... ...

3.98 3.93 ... ... ... ...

4.35 4.29 4.22 4.16 4.10 4.04

4.76 4.69 4.62 4.55 4.48 4.42

1.062

... ... ... ... ... ...

4.04 3.99 ... ... ... ...

4.39 4.33 4.27 4.21 4.15 4.10

4.78 4.71 4.64 4.58 4.51 4.45

5.22 5.14 5.07 4.99 4.92 4.85

1.125

4.10 ... ... ... ... ...

4.43 4.37 4.32 4.26 4.20 4.15

4.80 4.73 4.67 4.61 4.55 4.49

5.21 5.14 5.07 5.00 4.93 4.86

5.69 5.60 5.52 5.44 5.36 5.29

1.188

4.47 4.41 4.36 4.31 4.25 4.20

4.82 4.76 4.70 4.64 4.58 4.52

5.21 5.14 5.07 5.01 4.94 4.88

5.65 5.57 5.49 5.42 5.35 5.28

6.15 6.06 5.98 5.89 5.81 5.73

1.250

ASME B31G-2012

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45

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No limit 542.6 542.6 542.6 376.8

290.3 240.7 207.9 184.4 166.5

152.3 140.7 131.0 122.6 115.4

109.0 103.3 98.2 93.6 89.3

85.4 81.8 78.4 75.3 72.3

69.5 66.8 64.3 61.9 ... ...

1.0 1.3 1.5 1.8 2.0

2.3 2.5 2.8 3.0 3.3

3.6 3.8 4.1 4.3 4.6

4.8 5.1 5.3 5.6 5.8

6.1 6.4 6.6 6.9 7.1

7.4 7.6 7.9 8.1 8.4 8.6

78.5 75.7 72.9 70.3 67.9 65.5

96.1 92.0 88.3 84.8 81.6

122.7 116.2 110.4 105.2 100.4

173.3 159.5 148.1 138.3 130.0

353.8 285.1 242.3 212.6 190.5

No limit 563.6 563.6 563.6 485.4

11.1

87.5 84.4 81.4 78.6 76.0 73.4

106.7 102.3 98.2 94.4 90.8

136.6 129.3 122.7 116.9 111.6

195.7 179.2 165.8 154.6 144.9

434.2 337.6 281.1 243.5 216.3

No limit 583.2 583.2 583.2 583.2

11.9

--`,`,,```,,,,`````,``,``,`,,,`-`-`,,`,,`,`,,`---

10.3

Depth, d, mm

96.7 93.3 90.1 87.1 84.2 81.5

117.8 112.9 108.4 104.2 100.3

151.3 143.0 135.7 129.1 123.2

220.2 200.7 185.0 171.9 160.8

544.1 402.9 327.0 278.9 245.3

No limit 602.1 602.1 602.1 602.1

12.7

115.8 111.8 108.1 104.5 101.2 98.0

141.3 135.3 129.8 124.8 120.1

183.5 172.8 163.5 155.2 147.9

278.0 250.1 228.2 210.5 195.9

638.4 600.1 450.9 368.4 315.4

No limit No limit 638.4 638.4 638.4

136.5 131.7 127.3 123.1 119.3 115.6

167.2 159.9 153.2 147.2 141.6

220.6 206.8 194.9 184.5 175.4

353.0 311.8 280.8 256.5 236.9

673.2 673.2 658.2 500.5 411.1

No limit No limit No limit 673.2 673.2

15.9

158.5 152.9 147.7 142.8 138.3 134.1

195.7 186.7 178.6 171.3 164.6

263.4 245.4 230.2 217.1 205.7

453.5 390.5 345.6 311.7 285.0

706.3 706.3 706.3 706.3 549.1

No limit No limit No limit 706.3 706.3

17.5

181.8 175.1 169.0 163.4 158.1 153.2

226.5 215.5 205.8 197.0 189.0

312.7 289.2 269.7 253.2 238.9

594.0 493.4 426.4 378.1 341.6

737.5 737.5 737.5 737.5 737.5

No limit No limit No limit No limit 737.5

19.1 limit limit limit limit limit

206.8 199.0 191.8 185.2 179.1 173.4

260.8 247.4 235.5 224.9 215.4

371.4 340.4 315.1 294.1 276.2

767.3 637.9 532.8 461.9 410.5

767.3 767.3 767.3 767.3 767.3

No No No No No

20.6

Wall Thickness, t, mm

limit limit limit limit limit

234.4 225.2 216.7 209.0 201.9 195.3

299.9 283.3 268.9 256.1 244.7

444.0 402.2 368.9 341.8 319.2

796.5 796.5 683.6 573.6 498.7

796.5 796.5 796.5 796.5 796.5

No No No No No

22.2 limit limit limit limit limit

264.5 253.5 243.5 234.5 226.2 218.6

344.3 323.7 306.0 290.4 276.7

535.2 477.4 432.9 397.5 368.5

824.7 824.7 824.7 728.4 614.0

No limit 824.7 824.7 824.7 824.7

No No No No No

23.8 limit limit limit limit limit

296.9 283.8 272.1 261.6 251.9 243.1

394.4 368.7 346.9 328.0 311.5

651.7 569.8 509.2 462.4 425.0

851.5 851.5 851.5 851.5 769.4

No limit 851.5 851.5 851.5 851.5

No No No No No

25.4

Values of L for Pipe Sizes ≥ 1 422 mm Through 1 524 mm O.D.

14.3

Table 3-12M

limit limit limit limit limit

332.5 317.1 303.3 290.9 279.6 269.4

452.5 420.2 393.1 370.0 350.0

809.5 688.8 603.9 540.8 491.8

877.5 877.5 877.5 877.5 877.5

No limit No limit 877.5 877.5 877.5

No No No No No

27.0

limit limit limit limit limit

372.8 354.2 337.9 323.2 310.1 298.2

522.2 480.9 446.9 418.3 393.9

903.2 851.7 727.5 639.5 573.6

903.2 903.2 903.2 903.2 903.2

No limit No limit No limit 903.2 903.2

No No No No No

28.6

limit limit limit limit limit

417.8 395.5 376.0 358.7 343.3 329.4

606.2 552.5 509.3 473.6 443.5

928.1 928.1 893.2 765.7 674.7

928.1 928.1 928.1 928.1 928.1

No limit No limit No limit 928.1 928.1

No No No No No

30.2

limit limit limit limit limit

467.8 440.9 417.6 397.1 379.0 362.8

707.8 637.0 581.4 536.5 499.2

952.1 952.1 952.1 930.8 801.2

952.1 952.1 952.1 952.1 952.1

No limit No limit No limit No limit 952.1

No No No No No

31.8

ASME B31G-2012

10.3

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

Depth, d, mm

8.9 9.1 9.4 9.7 9.9 10.2

10.4 10.7 10.9 11.2 11.4 11.7

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11.9 12.2 12.4 12.7 13.0 13.2

13.5 13.7 14.0 14.2 14.5 14.7

15.0 15.2 15.5 15.7 16.0 16.3

16.5 16.8 17.0 17.3 17.5 17.8

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

63.3 ... ... ... ... ...

11.1

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

71.0 68.7 66.5 ... ... ...

11.9

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

78.9 76.4 74.1 71.8 69.6 67.5

12.7

Table 3-12M

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

79.8 77.6 75.5 73.5 ... ...

95.1 92.2 89.5 86.9 84.5 82.1

14.3

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

81.3 79.3 77.3 75.4 ... ...

94.8 92.3 89.9 87.6 85.4 83.3

112.2 108.9 105.8 102.8 100.0 97.3

15.9

... ... ... ... ... ...

... ... ... ... ... ...

82.9 81.0 79.2 ... ... ...

95.1 92.9 90.8 88.7 86.7 84.8

110.2 107.4 104.8 102.2 99.8 97.4

130.1 126.3 122.8 119.4 116.2 113.1

17.5

... ... ... ... ... ...

84.4 82.7 ... ... ... ...

95.6 93.6 91.7 89.8 87.9 86.1

109.1 106.6 104.3 102.0 99.8 97.7

126.0 122.9 119.9 117.0 114.3 111.6

148.6 144.3 140.2 136.4 132.7 129.3

19.1

... ... ... ... ... ...

96.4 94.5 92.7 91.0 89.3 87.6

108.6 106.4 104.3 102.2 100.2 98.3

123.5 120.8 118.2 115.7 113.2 110.9

142.4 138.9 135.5 132.3 129.2 126.3

168.2 163.2 158.5 154.2 150.0 146.1

20.6

Wall Thickness, t, mm

97.5 95.8 94.1 92.5 90.9 89.3

108.8 106.8 104.9 103.0 101.1 99.3

122.2 119.8 117.4 115.2 113.0 110.9

138.6 135.6 132.7 129.9 127.3 124.7

159.8 155.8 152.1 148.5 145.0 141.8

189.2 183.5 178.2 173.2 168.5 164.0

22.2

109.3 107.4 105.6 103.9 102.1 100.4

121.5 119.3 117.2 115.2 113.1 111.2

136.1 133.5 130.9 128.5 126.1 123.8

154.3 150.9 147.7 144.7 141.7 138.9

178.1 173.6 169.3 165.3 161.5 157.8

211.5 205.0 198.9 193.2 187.8 182.8

23.8

121.1 119.1 117.1 115.2 113.4 111.6

134.3 131.9 129.6 127.4 125.2 123.1

150.3 147.4 144.6 141.9 139.3 136.7

170.3 166.6 163.1 159.7 156.4 153.3

196.9 191.8 187.1 182.6 178.3 174.2

235.0 227.5 220.5 214.0 207.9 202.2

25.4

133.1 131.0 128.9 126.8 124.8 122.9

147.4 144.9 142.4 140.0 137.6 135.3

164.9 161.7 158.6 155.7 152.8 150.1

187.0 182.9 179.0 175.2 171.6 168.2

216.7 211.0 205.7 200.6 195.8 191.3

260.0 251.4 243.4 236.0 229.2 222.7

27.0

Values of L for Pipe Sizes ≥ 1 422 mm Through 1 524 mm O.D. (Cont’d)

145.6 143.3 141.0 138.8 136.7 134.6

161.1 158.3 155.6 153.0 150.5 148.0

180.2 176.7 173.4 170.1 167.0 164.0

204.6 200.1 195.7 191.6 187.6 183.8

237.9 231.5 225.5 219.9 214.5 209.4

287.4 277.4 268.3 259.8 252.0 244.7

28.6

158.4 155.9 153.5 151.1 148.8 146.6

175.3 172.2 169.3 166.4 163.7 161.0

196.1 192.3 188.6 185.1 181.7 178.4

223.1 218.0 213.2 208.6 204.3 200.1

260.3 253.1 246.4 240.1 234.1 228.4

316.8 305.4 294.9 285.2 276.3 268.0

30.2

171.4 168.7 166.0 163.5 161.0 158.6

189.6 186.3 183.1 180.0 177.0 174.2

212.3 208.1 204.1 200.3 196.6 193.0

242.1 236.5 231.2 226.1 221.3 216.7

283.7 275.6 268.1 261.0 254.3 248.0

348.2 335.0 323.0 312.0 301.8 292.4

31.8

ASME B31G-2012

46

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47

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... ... ... ... ... ...

24.1 24.4 24.6 24.9 25.1 25.4

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

11.1

--`,`,,```,,,,`````,``,``,`,,,`-`-`,,`,,`,`,,`---

... ... ... ... ... ...

22.6 22.9 23.1 23.4 23.6 23.9

... ... ... ... ... ...

19.6 19.8 20.1 20.3 20.6 20.8

... ... ... ... ... ...

... ... ... ... ... ...

18.0 18.3 18.5 18.8 19.1 19.3

21.1 21.3 21.6 21.8 22.1 22.4

10.3

Depth, d, mm

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

11.9

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

12.7

Table 3-12M

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

14.3

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

15.9

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

17.5

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

19.1

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

20.6

Wall Thickness, t, mm

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

22.2

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

98.8 97.2 95.6 94.0 92.5 ...

23.8

... ... ... ... ... ...

... ... ... ... ... ...

... ... ... ... ... ...

100.0 98.4 96.9 95.4 ... ...

109.8 108.1 106.4 104.7 103.1 101.5

25.4

... ... ... ... ... ...

... ... ... ... ... ...

101.2 99.7 ... ... ... ...

110.5 108.9 107.3 105.7 104.2 102.7

121.0 119.2 117.3 115.6 113.8 112.2

27.0

Values of L for Pipe Sizes ≥ 1 422 mm Through 1 524 mm O.D. (Cont’d)

... ... ... ... ... ...

102.6 101.2 ... ... ... ...

111.5 109.9 108.4 106.9 105.5 104.0

121.4 119.6 117.9 116.3 114.6 113.0

132.6 130.6 128.7 126.8 124.9 123.1

28.6

104.1 ... ... ... ... ...

112.5 111.1 109.6 108.2 106.8 105.4

121.9 120.2 118.6 117.1 115.5 114.0

132.4 130.5 128.7 127.0 125.2 123.5

144.4 142.3 140.2 138.2 136.2 134.3

30.2

113.5 112.1 110.7 109.4 108.0 106.7

122.4 120.8 119.3 117.8 116.4 114.9

132.3 130.5 128.8 127.2 125.6 124.0

143.4 141.5 139.6 137.7 135.8 134.0

156.3 154.0 151.8 149.6 147.5 145.4

31.8

ASME B31G-2012

INTENTIONALLY LEFT BLANK

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ASME B31G INTERPRETATIONS

ASME B31G INTERPRETATIONS VOLUME 1 Replies to Technical Inquiries October 30, 2009 through April 30, 2012 FOREWORD It has been agreed to publish interpretations issued by the B31 Committee concerning B31G as part of the update service to the Manual. The interpretations have been assigned numbers in chronological order. Each interpretation applies either to the latest Edition at the time of issuance of the interpretation or the Edition stated in the reply. Subsequent revisions to the Manual may have superseded the reply. These replies are taken verbatim from the original letters, except for a few typographical and editorial corrections made for the purpose of improved clarity. In some instances, a review of the interpretation revealed a need for corrections of a technical nature. In these cases, a revised reply bearing the original interpretation number with the suffix R is presented. In the case where an interpretation is corrected by errata, the original interpretation number with the suffix E is used. ASME procedures provide for reconsideration of these interpretations when or if additional information is available which the inquirer believes might affect the interpretation. Further, persons aggrieved by an interpretation may appeal to the cognizant ASME committee or subcommittee. As stated in the Statement of Policy in the Code documents, ASME does not “approve,” “certify,” “rate,” or “endorse” any item, construction, proprietary device, or activity. For detailed instructions on preparation of technical inquiries to the B31 Committee, refer to “Correspondence With the B31 Committee” in the front matter.

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ASME B31G INTERPRETATIONS

Interpretation: G-1-01 Subject: ASME B31G-2009 Date Issued: September 29, 2011 File: 11-1259 Question (1): When calculating the term z p L2/Dt, is t in this case the corroded pipe wall thickness?

Question (2): When calculating the failure stress (SF), is t the corroded pipe wall thickness? Reply (2): Yes. Question (3): When calculating the hoop stress (SO or Sh), is t in this case the corroded pipe wall thickness? Reply (3): No. Dimension t is the uncorroded pipe wall thickness. Question (4): Does t represent the uncorrroded pipe wall thickness? Reply (4): Yes.

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--`,`,,```,,,,`````,``,``,`,,,`-`-`,,`,,`,`,,`---

Reply (1): No. Dimension t is the uncorroded pipe wall thickness.

ASME CODE FOR PRESSURE PIPING, B31

Power Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B31.1-2012 Process Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B31.3-2010 Tuberi´as de Proceso . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B31.3-2010 Pipeline Transportation Systems for Liquids and Slurries. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B31.4-2012 Refrigeration Piping and Heat Transfer Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B31.5-2010 Gas Transmission and Distribution Piping Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B31.8-2010 Managing System Integrity of Gas Pipelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B31.8S-2010 Gestio´n de Integridad de Sistemas de Gasoductos . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B31.8S-2010 Building Services Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B31.9-2011 Slurry Transportation Piping Systems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B31.11-2002 Hydrogen Piping and Pipelines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B31.12-2011 Standard for the Seismic Design and Retrofit of Above-Ground Piping Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B31E-2008 Manual for Determining the Remaining Strength of Corroded Pipelines: Supplement to ASME B31 Code for Pressure Piping. . . . . B31G-2012 Standard Test Method for Determining Stress Intensification Factors (i-Factors) for Metallic Piping Components . . . . . . . . . . . . . . . . B31J-2008 Pipeline Personnel Qualification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B31Q-2010 Calificacio´n del Personal de Li´neas de Tuberi´as . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B31Q-2010 Standard Toughness Requirements for Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B31T-2010

The ASME Publications Catalog shows a complete list of all the Standards published by the Society. For a complimentary catalog, or the latest information about our publications, call 1-800-THE-ASME (1-800-843-2763).

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