Designation: A20/A20M − 13
Standard Specification for
General Requirements for Steel Plates for Pressure Vessels 1 This standard is issue issued d under the fixed designation designation A20/A20M; A20/A20M; the number immed immediately iately following following the designation designation indica indicates tes the year of original adoption or, in the case of revision, the year of last revis revision. ion. A number in parentheses parentheses indicates the year of last reapproval. reapproval. A superscript epsilon (´) indicates an editorial change since the last revision or reapproval. This standard has been approved for use by agencies of the Department of Defense.
1. Sco Scope* pe* Title of Specification ASTM DesignationA Pressure Vessel Plates, Carbon Steel, ManganeseA562/A562M Titanium for Glass or Diffused Metallic Coatings Pressure Pressu re Ves Vessel sel Plates, Carbon Steel, High Streng Strength, th, for A612/A612M Moderate and Lower Temperature Service Pressure Vessel Plates, Five Percent Nickel Alloy Steel, A645/A645M Specially Heat Treated Pressure Vessel Plates, Carbon-Manganese, for A662/A662M Moderate and Lower Temperature Service Pressure Vessel Plates, Carbon Steel, Quenched and A724/A724M Tempered, for Welded Layered Pressure Vessels Pressure Vessel Plates, Alloy Steel and High-Strength A734/A734M Low-Alloy Steel, Quenched and Tempered Pressure Vessel Plates, Low-Carbon ManganeseA735/A735M Molybdenum-Columbium Alloy Steel, for Moderate and Lower Temperature Service Pressure Vessel Plates, Low-Carbon Age-Hardening A736/A736M Nickel-Copper-Chromium-Molybdenum-Columbium Alloy Steel Pressure Vessel Plates, High-Strength Low-Alloy Steel A737/A737M Pressure Vessel Plates, Heat-Treated, CarbonA738/A738M Manganese-Silicon Steel, for Moderate and Lower Temperature Service Pressure Vessel Plates, Alloy Steel, ChromiumA832/A832M Molybdenum-Vanadium Pressure Pressu re Ves Vessel sel Plates, Produc Produced ed by the ThermoA841/A841M Mechanical Control Process (TMCP) Pressure Vessel Plates, 9 % Nickel Alloy, Produced A844/A844M by the Direct-Quenching Process Pressure Vessel Plates, 9 % Nickel Alloy, Produced A844/A844M by the Direct-Quenching Process Pressure Vessel Plates, 9 % Nickel Alloy, Produced A844/A844M by the Direct-Quenching Process Pressure Vessel Plates, Alloy Steel, ChromiumA1017/A1017M Molybdenum-Tungsten Pressure Vessel Plates, Alloy Steel, Higher Strength A1041/A1041M Chromium-Molybdenum-Tungsten
1.1 This general requiremen requirements ts specification specification2 covers a group of common requirements that, unless otherwise specified in the applicable product specification, apply to rolled steel plates for pressu pre ssure re ves vessels sels cov covere ered d by eac each h of the fol follow lowing ing pro produc ductt specifications specific ations issued by ASTM: Title of Specification ASTM DesignationA Pressure Vessel Plates, Alloy Steel, Nickel A203/A203M Pressure Vessel Plates, Alloy Steel, Molybdenum A204/A204M Pressure Vessel Plates, Alloy Steel, ManganeseA225/A225M Vanadium Pressure Press ure Vessel Plates, Carbon Steel, Low- and A285/A285M Intermediate-Tensile Strength Pressure Vessel Plates, Carbon Steel, Manganese-Silicon A299/A299M Pressure Vessel Plates, Alloy Steel, ManganeseA302/A302M Molybdenum and Manganese-Molybdenum-Nickel Pressure Press ure Vessel Plates, Alloy Steel, 9 Percen Percentt Nickel A353/A353M Double-Normalized and Tempered Pressure Vessel Plates, Alloy Steel, ChromiumA387/A387M Molybdenum Pressure Vessel Plates, Carbon Steel, High Strength A455/A455M Manganese Pressure Vessel Plates, Carbon Steel, for IntermediateA515/A515M and Higher-Temperature Service Pressure Vessel Plates, Carbon Steel, Moderate- and A516/A516M Lower-Temperature Service Pressure Vessel Plates, Alloy Steel, High-Strength, A517/A517M Quenched and Tempered Pressure Vessel Plates, Alloy Steel, Quenched and A533/A533M Tempered Manganese-Molybdenum and ManganeseMolybdenum- Nickel Pressure Vessel Plates, Heat-Treated, CarbonA537/A537M Manganese-Silicon Steel Pressure Vessel Plates, Alloy Steel, Quenched and A542/A542M Tempered Chromium-Molybdenum Pressure Vessel Plates, Alloy Steel, Quenched and A543/A543M Tempered Nickel-Chromium-Molybdenum Pressure Vessel Plates, Alloy Steel, Quenched and A553/A553M Tempered 8 and 9 Percent Nickel ` , , , , , ` ` ` , , ` ` , , , , ` ` , ` , ` , ` ` , , , ` ` , , ` , , ` , ` , , ` -
A
These designations refer to the latest issue of the respective specification which appears in the Annual the Annual Book of ASTM Standards , Vol 01.04.
1.1.1 This general requirements requirements specification specification also covers a group of sup group supple plemen mentar tary y req requir uireme ements nts tha thatt are app applica licable ble to several of the above product specifications as indicated therein. Such requirements are provided for use if additional testing or additional restrictions are required by the purchaser, and apply only if specified individually in the purchase order.
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This specification is under the jurisdiction of ASTM Committee A01 A01 on on Steel, Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee A01.11 on Steel Plates for Boilers and Pressure Vessels. Current Curre nt editi edition on approv approved ed Oct. 1, 2013. Published Published Octob October er 2013. Originally Originally approved in 1950. Last previous edition approved in 2011 as A20/A20M – 11. DOI: 10.1520/A0020_A0020M-13. 2 For ASME Boiler and Pressure Vessel Code applications, see related Specification SA-20/SA-20M in Section II of that Code.
1.2 Appendix X1 provides information on coil as a source of plates for pressure vessels. 1.3 Appendix X2 provides X2 provides information on the variability of tensile properties in plates for pressure vessels.
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A20/A20M − 13 1.4 Appendix X3 provides X3 provides information on the variability of Charpy-V-Notch impact test properties in plates for pressure vessels.
A353/A353M Specification for Pressure Vessel A353/A353M Specification Vessel Plates, Alloy Steel, Double-Normalized and Tempered 9 % Nickel A370 Test Methods and Definitions for Mechanical Testing A370 of Steel Products A387/A387M Specification A387/A387M Specification for Pressure Vessel Vessel Plates, Alloy Steel, Chromium-Molybdenum A435/A435M Spe Specifi cificati cation on for Str Straig aightht-Beam Beam Ultr Ultraso asonic nic Examination of Steel Plates A455/A455M Specification A455/A455M Specification for Pressure Vessel Plates, Carbon Steel, HighHigh-Stren Strength gth Manga Manganese nese A515/A515M Specification A515/A515M Specification for Pressure Vessel Plates, Carbon Steel, for Intermediate- and Higher-Temperature Service A516/A516M Specification A516/A516M Specification for Pressure Vessel Plates, Carbon Steel, for Moderate- and Lower-Temperature Service A517/A517M Specification A517/A517M Specification for Pressure Vessel Vessel Plates, Alloy Steel, High-Strength, Quenched and Tempered A533/A533M Specification A533/A533M Specification for Pressure Vessel Vessel Plates, Alloy Steel, Quenched and Tempered, Manganese-Molybdenum and Manganese-Molybdenum-Nickel A537/A537M Specification A537/A537M Specification for Pressure Vessel Plates, HeatTreated, Carbon-Manganese-Silicon Steel A542/A542M Specification A542/A542M Specification for Pressure Vessel Vessel Plates, Alloy Stee St eel, l, Quen Qu ench ched ed-a -and nd-T -Tem empe pere red, d, Chro Ch romi mium um-Molybdenum, and Chromium-Molybdenum-Vanadium A543/A543M Specification A543/A543M Specification for Pressure Vessel Vessel Plates, Alloy Steel, Stee l, Que Quench nched ed and Temp empered ered Nick Nickel-C el-Chro hromiu miummMolybdenum A553/A553M Specification A553/A553M Specification for Pressure Vessel Vessel Plates, Alloy Steel, Quenched and Tempered 8 and 9 % Nickel A562/A562M Specification A562/A562M Specification for Pressure Vessel Plates, Carbon Stee Steel, l, Man Mangan ganese ese-T -Titan itanium ium for Gla Glass ss or Dif Diffus fused ed Metallic Coating Coatingss A577/A577M Specificat A577/A577M Specification ion for Ultraso Ultrasonic nic Angle-Beam Examination of Steel Plates A578/A578M Spe Specifi cificati cation on for Str Straig aightht-Beam Beam Ultr Ultraso asonic nic Examination of Rolled Steel Plates for Special Applications A612/A612M Specification A612/A612M Specification for Pressure Vessel Plates, Carbon Steel, High Strength, for Moderate and Lower Temperature Service A645/A645M Specification A645/A645M Specification for Pressure Vessel Plates, 5 % 1 and 5 ⁄ 2 % Nickel Alloy Steels, Specially Heat Treated A662/A662M Spe Specific cificatio ation n for Pres Pressur suree Vesse essell Plat Plates, es, Carbon-M Carbo n-Manga anganese nese-Sili -Silicon con Steel Steel,, for Mod Moderate erate and Lower Temperature Service A700 Practices A700 Practices for Packaging, Marking, and Loading Methods for Steel Products for Shipment A724/A724M Spe Specific cificatio ation n for Pres Pressur suree Vesse essell Plat Plates, es, Carbo Car bonn-Man Manga ganes nese-S e-Sili ilicon con Ste Steel, el, Qu Quen enche ched d and Tempered, for Welded Pressure Vessels A734/A734M Specification A734/A734M Specification for Pressure Vessel Vessel Plates, Alloy Steel and High-Strength Low-Alloy Steel, Quenched-andTempered A735/A735M Specification A735/A735M Specification for Pressure Vessel Plates, LowCarbon ManganeseManganese-Molybden Molybdenum-Columb um-Columbium ium Alloy Steel, for Moderate and Lower Temperature Service
1.5 Appendix X4 provides information on cold bending of plates, plat es, incl includi uding ng sug sugges gested ted min minimu imum m ins inside ide rad radii ii for col cold d bending. 1.6 The These se mate material rialss are intended intended to be sui suitab table le for fusion fusion welding. When the steel is to be welded, it is presupposed that a welding procedure suitable for the grade of steel and intended use or service will be utilized. 1.7 In case of any conflict in requirements, requirements, the requirements requirements of the applicable product specification prevail over those of this general requirements specification. 1.8 Add Additio itional nal req requir uiremen ements ts tha thatt are spe specifie cified d in the pur pur-chasee or chas orde derr an and d acc accep epted ted by th thee su supp pplie lierr ar aree pe perm rmitt itted ed,, provid pro vided ed tha thatt suc such h req requir uiremen ements ts do not negate negate any of the requirements of this general requirements specification or the applicable product specification. 1.9 For pur purpos poses es of det determ ermini ining ng con confor forman mance ce wit with h thi thiss general requirements specification and the applicable product specification, specific ation, values are to be roun rounded ded to the neares nearestt unit in the rightrig ht-han hand d pla place ce of figu figures res use used d in exp expres ressin sing g the limi limiting ting values valu es in acc accord ordanc ancee with the rou roundi nding ng meth method od of Pra Practic cticee E29.. E29 1.10 The values stated in either SI units or inch-pound inch-pound units units are to be regarded separately as standard. The values stated in each system may not be exa exact ct equ equiva ivalen lents; ts; the theref refore ore,, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard. 1.11 This general requirements 1.11 requirements specification specification and the applicable product specification are expressed in both inch-pound units and SI units; unless the order specifies the applicable “M” spec sp ecific ificati ation on de desi sign gnati ation on (S (SII un units its), ), th thee pl plat ates es ar aree to be furnished furni shed to inchinch-pound pound units. 2. Referenc Referenced ed Documents Documents 2.1 ASTM Standards: 3 A203/A203M Specification A203/A203M Specification for Pressure Vessel Plates, Alloy Steel, Nickel A204/A204M Specification A204/A204M Specification for Pressure Vessel Plates, Alloy Steel, Molybdenum A225/A225M Specification A225/A225M Specification for Pressure Vessel Plates, Alloy Steel, Manganese-Vanadium-Nickel A285/A285M Specification A285/A285M Specification for Pressure Vessel Plates, Carbon Steel, Low- and Interm Intermediateediate-T Tensile Stren Strength gth A299/A299M Specification A299/A299M Specification for Pressure Vessel Plates, Carbon Steel, Manganese-Silicon A302/A302M Specification A302/A302M Specification for Pressure Vessel Plates, Alloy Steel, Ste el, Man Mangan ganese ese-M -Moly olybd bdenu enum m and Man Mangan ganese ese-Molybdenum-Nickel
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A20/A20M − 13 A736/A736M Specification for Pressure Vessel Plates, LowA736/A736M Specification Carbon Carb on AgeAge-Hard Hardenin ening g Nick Nickel-Co el-Copper pper-Chr -Chromiu omiummMolybdenum-Columbium Alloy Steel A737/A737M Specification A737/A737M Specification for Pressure Vessel Plates, HighStrength, Streng th, Low-A Low-Alloy lloy Steel A738/A738M Specification A738/A738M Specification for Pressure Vessel Plates, HeatTreated, Tre ated, Carbon Carbon-Mang -Manganeseanese-Silicon Silicon Steel, for Moder Moderate ate and Lower Temperature Service A751 Test A751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products A770/A770M Specification A770/A770M Specification for Through-Thickness Tension Testing of Steel Plates for Special Applications A832/A832M Specification A832/A832M Specification for Pressure Vessel Plates, Alloy Steel, Chromium-Molybdenum-V Chromium-Molybdenum-Vanadium anadium A841/A841M Spe Specific cificatio ation n for Stee Steell Pla Plates tes for Pre Pressu ssure re Vessels, Produ Produced ced by Thermo Thermo-Mech -Mechanical anical Contro Controll Process (TMCP) A844/A844M Sp Spec ecific ificati ation on fo forr Ste Steel el Pl Plate ates, s, 9 % Ni Nick ckel el Alloy All oy,, for Pre Pressu ssure re Vess essels, els, Pro Produc duced ed by the Dir DirectectQuenching Process A941 Terminology A941 Terminology Relating to Steel, Stainless Steel, Related Alloys,, and Ferro Alloys Ferroalloys alloys A1017/A1017M Spe Specific cificatio ation n for Pre Pressu ssure re Vess essel el Plat Plates, es, Alloy Steel, Chromium-Molybdenum-Tungsten A1041/A1041M Spe Specific cificatio ation n for Pre Pressu ssure re Vess essel el Plat Plates, es, Alloy Steel, Highe Higherr Streng Strength th Chrom Chromium-M ium-Molybd olybdenumenumTungsten (Withdrawn Tungsten (Withdrawn 2013) 4 E21 Test E21 Test Methods for Elevated Temperature Tension Tension Tests of Metallic Materi Materials als E29 Pra Practic cticee for Usi Using ng Sig Signifi nifican cantt Dig Digits its in Test Dat Dataa to Determine Conformance with Specifications E112 Test E112 Test Methods for Determining Average Grain Size E208 Test Met Method hod for Con Conduc ductin ting g Dro Drop-W p-Weig eight ht Test to Determine Determ ine Nil-Du Nil-Ductility ctility Tra Transition nsition Temperatur Temperaturee of Ferritic Steels E709 Guide E709 Guide for Magnetic Particle Testing
3.1.2 exclusive— when w hen us used ed in re relat latio ion n to ra rang nges es,, as fo forr ranges of thicknesses in the tables of permissible variations in dimensions, the term is intended to exclude only the greater value of the range. Thus, a range from 60 to 72 in. [1500 to 1800 mm] exclusive includes 60 in. [1500 mm], but does not include 72 in. [1800 mm]. 3.1.3 heat see 3.1.8, 3.1.8, and Termino erminology logy heat tr treat eatmen mentt term terms— s— see A941. A941. forming— — a forming operation producing perma3.1.4 hot forming nent deformation, performed after the plate has been heated to the temperature required to produce grain refinement.
3.1.5 manufacturer— the the organization that directly controls the conversi conversion on of stee steell ing ingots ots or sla slabs, bs, by hot rolling, rolling, int into o plate-a pla te-as-r s-roll olled ed or into coil; and for pla plates tes pro produc duced ed fro from m plate-a pla te-as-r s-roll olled, ed, the or organ ganizat ization ion tha thatt dir directl ectly y con contro trols, ls, or is respon res ponsib sible le for for,, one or mor moree of the ope operat ration ionss inv involv olved ed in finishing the plates. Such finishing operations include leveling, cutting to length, testing, inspection, conditioning, heat treatment (if applicable), packaging, marking, loading for shipment, and certification. 3.1.5.1 Discussion— The The fini finishi shing ng ope operat ration ionss nee need d not be done by the organization that did the hot rolling of the plate. For plates produced from coil, see also 3.1.1 3.1.1.. 3.1.6 plate identifier— the the alpha, numeric, or alphanumeric designation used to identify the plate. 3.1.7 plates— flat flat hot hot-ro -rolled lled ste steel, el, ord ordere ered d to thi thickn ckness ess or weight and typically to width and length, commonly available by size as follows: Width, in. [mm] Over 8 [200] Over 48 [1200]
3.1.7.1 Discussion— Steel Steel pla plates tes are ava availab ilable le in var variou iouss thickness thickn ess,, wid width, th, and len length gth com combin binatio ations ns dep depend endent ent upo upon n equipment and processing capabilities of various manufacturers and processors. Historic limitations of a plate based upon dimens dim ension ionss (th (thick icknes ness, s, wid width, th, and len length gth)) do not tak takee int into o account acco unt cur curren rentt pro produc ductio tion n and pro proces cessin sing g cap capabi abiliti lities. es. To qualify any plate to a particular product specification requires that all appropriate and necessary tests be performed and that the results meet the limits prescribed in that product specification. If the necessary tests required by a product specification can not be conducted, the plate can not be qualified to that specification. This general requirements specification contains permitted variations for the commonly available sizes. Permitted variations for other sizes are subject to agreement between the purchaser and the manufacturer manufacturer or proce processor ssor,, whiche whichever ver is applicable.
2.2 American Society of Mechanical Engineers Code:5 ASME Boiler and Pressure Vessel Vessel Code Secti Section on IX IX,, Welding, Brazing, and Fusing Qualifications 2.3 U.S. Federal Standard: 6 Fed. Std. No. 123 Marking 123 Marking for Shipment (Civil Agencies) 2.4 Automotive Industry Action Group Standard: 7 B 1 Bar Code Symbology Standard 3. Terminology 3.1 Definitions of Terms Specific to This Standard: 3.1.1 coil— hot-rolled hot-rolled steel in coil form for processing into finished plates.
precipitation heat trea treatment— tment— a subcr 3.1.8 precipitation subcritical itical temperature the ture therma rmall trea treatme tment nt per perfor formed med to cau cause se pre precip cipitat itation ion of submicroscopic constituents, and so forth, to result in enhancement of some desirable property.
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The last app approve roved d vers version ion of this historica historicall sta standa ndard rd is refe referenc renced ed on www.astm.org. 5 Availab Av ailable le from American Socie Society ty of Mech Mechanica anicall Engin Engineers eers (ASME (ASME), ), ASME Internationa Intern ationall Headq Headquarter uarters, s, Three Park Ave., New York, NY 10016 10016-5990, -5990, http:// www.asme.org. 6 Availab Av ailable le from Stand Standardiza ardization tion Docum Documents ents Order Desk, DODSSP, DODSSP, Bldg. 4, Sectio Sec tion n D, 700 Rob Robbin binss Ave. ve.,, Ph Phila iladel delphi phia, a, PA 191 19111 11-50 -5098, 98, htt http:/ p:// / dodssp.daps.dla.mil. 7 Available from Automotive Industry Action Group (AIAG), 26200 Lahser Rd., Suite 200, Southfield, MI 48033, http://www.aiag.org.
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Thickness, in. [mm] over 0.229 [6.0 mm and over] over 0.179 [4.6 mm and over]
3.1.9 processor— the the organization that directly controls, or is responsible for, operations involved in the processing of coil into int o fini finishe shed d pla plates tes.. Suc Such h pro proces cessin sing g ope operat ration ionss inc includ ludee decoilin deco iling, g, leve leveling ling,, cutt cutting ing to leng length, th, test testing ing,, ins inspect pection, ion, condition cond itioning, ing, heat treat treatment ment (if appl applicab icable), le), pack packagin aging, g, marking, loading for shipment, and certification. 3
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A20/A20M − 13 3.1.9.1 Discussion— The The processing operations need not be done by the organization that did the hot rolling of the coil. If only on ly on onee or orga gani niza zatio tion n is in invo volv lved ed in th thee ho hott ro rolli lling ng an and d processing operations, that organization is termed the manu facturer for for the hot rolling operation and the processor for for the process pro cessing ing ope operat ration ions. s. If mor moree than one or organ ganizat ization ion is involv vo lved ed in th thee ho hott ro rolli lling ng an and d pr proc oces essin sing g op oper erat atio ions ns,, th thee organization that did the hot rolling is termed the manufacturer and the organization that does one or more processing operations is termed a processor .
5.3 The ratio of red reducti uction on of thi thickn ckness ess fro from m a str strand and-cas -castt slab to plate shall be at least 3.0:1, except that reduction ratios as low as 2.0:1 are permitted if all of the following limitations are met: 5.3.1 5.3 .1 The purchase purchaserr agr agrees ees to the use of suc such h red reduct uction ion ratios. 5.3.2 The applicable applicable product specification specification is A299/A299M is A299/A299M,, A515/A515M,, A516/A516M A515/A515M A516/A516M,, A537/A537M A537/A537M,, A662/A662M A662/A662M,, or A737/A737M.. A737/A737M 5.3.3 5.3 .3 The specified specified plate thicknes thicknesss is 3.0 in. [75 mm] or more. 5.3.4 One or more of the following low hydrogen hydrogen practices practices are used: vacuum degas degassing sing during steelma steelmaking; king; controlled soaking soakin g of the slabs or plates; or contro controlled lled slow cooling of the slabs or plates. 5.3.5 The sulfur content content is 0.004 % or less, based upon upon heat analysis. 5.3. 5. 3.6 6 On Onee or mo more re of th thee fo follo llowi wing ng pr pract actice icess ar aree us used ed:: electromagnetic stirring during strand casting; soft reduction during strand casting; heavy pass reductions or other special practices practic es during plate rollin rolling; g; or combin combined ed forging and rollin rolling g during plate rolling. 5.3.7 The plates are ultraso ultrasonically nically examined examined in accord accordance ance with Specification A578/A578M Specification A578/A578M,, Level C based on continuous scanning over 100 % of the plate surface. 5.3.8 5.3 .8 The plat plates es are thr throug ough-t h-thic hickne kness ss ten tensio sion n test tested ed in accordance accord ance with Specifi Specification cation A770/A770M A770/A770M..
3.2 Refer to Termin Terminology ology A941 A941 for for additional terms used in this standa standard. rd. 4. Orde Ordering ring Information Information 4.1 Orders Orders sho should uld inc includ ludee the fol follow lowing ing inf inform ormatio ation, n, as necessary, to adequately describe the desired product. 4.1.1 Quanti Quantity ty (weight [mass] or number of plates), 4.1.2 Dimens Dimensions, ions, 4.1.3 Name of prod product uct (for example, plates, carbon steel; plates, alloy steel), 4.1.4 Specific Specification ation designation designation (including type, class, and grade as applicable) and year-date, 4.1.5 4.1 .5 Condition Condition (as(as-roll rolled, ed, nor normaliz malized, ed, quen quenched ched and tempered, etc. If heat treatment of plate is to be performed by the fabricator, this is to be stated. Also, if purchaser specifies a heat-treatment cycle, this is to be stated), 4.1.6 Impact test requiremen requirements, ts, if any (see Section 12 Section 12). ). (For Charpy V-notch test, include test specimen orientation, testing temperature, and acceptance criteria. For drop-weight test, give testing temperature), 4.1.7 Exclus Exclusion ion of either plates produced produced from coil or plates produc pro duced ed fro from m pla platete-asas-rol rolled led,, if app applica licable ble.. (Se (Seee 5.4 and Appendix X1.) X1.) 4.1. 4. 1.8 8 Limits Limits fo forr gr grain ain re refin fining ing ele elemen ments ts ot other her th than an aluminum, if applicable (see 8.3.2 (see 8.3.2)), 4.1.9 Paint marking marking (see 13.2.1 (see 13.2.1)), 4.1.10 4.1.1 0 Supp Supplementar lementary y requir requirements, ements, if any (test specime specimen n heat treatment, special impact test requirements, etc.), and 4.1.11 4.1.1 1 Additi Additional onal requirements, requirements, if any any..
5.4 Unless otherwise otherwise specified in the purchase order, order, plates shall be produced from plate-as-rolled or from coil. 5.5 Coils are excluded from qualification qualification to the applic applicable able produc pro ductt spe specific cificatio ation n unt until il the they y are dec decoil oiled, ed, lev leveled eled,, cut to length len gth,, and tested by the processor processor in acco accorda rdance nce with the specified specifi ed requi requirement rementss (see Section Sectionss 9 9,, 10 10,, 11 11,, 12 12,, 13 13,, 14 14,, 15 15,, 16,, and 20 16 20.) .) 5.5.1 5.5 .1 Plates pro produc duced ed fro from m coi coill sha shall ll not con contain tain splice welds, unless approved by the purchaser.
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6. Heat Treatmen Treatment: t: 6.1 6. 1 If pl plat ates es ar aree re requ quir ired ed to be he heat at tr trea eate ted, d, th thee he heat at treatme treat ment nt sh shall all be pe perf rfor ormed med by th thee ma manu nufa factu cturer rer,, th thee processor, or the fabricator, unless otherwise specified in the applicable product specification.
5. Mate Material rialss and Manufacture Manufacture 5.1 The steel shall be made in an open-hearth, basic-oxygen, or electric-arc furnace, possibly followed by additional refining in a ladle metallurgy furnace (LMF), or by another method; or secondary second ary melting by vacuu vacuum-arc m-arc remelt remelting ing (V (VAR), AR), electro electro-slag remelting (ESR), or another method.
6.2 If the heat treatment required required by the applic applicable able product product speci sp ecific ficati ation on is to be pe perf rfor orme med d by th thee pu purc rcha haser ser or th thee purcha pur chaser ser’s ’s age agent, nt, and the plates are to be sup suppli plied ed by the manu ma nufa factu cture rerr or pr proc oces esso sorr in a co cond nditi ition on ot othe herr th than an th that at required by the applicable product specification, the order shall so state. 6.2.1 6.2 .1 If plat plates es are ord ordered ered without without the heat tre treatme atment nt required by the applicable product specification, heat treatment of the plates to conform to the requirements of the applicable produc pro ductt spe specifi cificati cation on sha shall ll be the res respon ponsib sibilit ility y of the pur pur-chaser.
5.2 The steel may be strand cast or cast in stationary stationary molds. molds. 5.2.1 Strand Cast Slabs: 5.2.1.1 5.2.1 .1 If heats of the same nominal chemical chemical composition composition are con consecu secutive tively ly str strand and cast at one time, the heat num number ber assigned to the cast product (slab) may remain unchanged until all of the steel in the slab is from the following heat. 5.2.1. 5.2 .1.2 2 When two con consec secutiv utively ely stra strand nd cast hea heats ts hav havee different nominal chemical composition ranges, the manufacturer shall remove the transition material by any established procedure that positively separates the grades. Copyright ASTM International Provided by IHS under license with ASTM No reproduction or networking permitted without license from IHS
6.3 If heat treatment treatment is to be performed, performed, the plates shall be heat treated as specified in the applicable product specification. Thee pu Th purc rcha hase serr ma may y sp speci ecify fy th thee he heat at tr treat eatme ment nt to be us used ed,, 4
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A20/A20M − 13 TABLE 1 Limits on Elements (see and )
provid prov ided ed it is no nott in co confl nflic ictt wi with th th thee re requ quir irem emen ents ts of th thee applicable product specification.
A
6.4 If normalizing normalizing is to be performed performed by the fabric fabricator ator,, the plates shall be either normalized or heated uniformly for hot forming, provided that the temperature to which the plates are heate he ated d fo forr ho hott fo form rmin ing g do does es no nott si sign gnific ifican antly tly ex exce ceed ed th thee normalizing temperature. 6.5 If no hea heatt tre treatme atment nt is req requir uired, ed, the man manufa ufactu cturer rer or processor shall have the option of heat treating the plates by normalizing, stress relieving, or normalizing and then stress relieving to meet the requirements of the applicable product specification. 6.6 If approved approved by the purchaser, purchaser, cooling cooling rates faster than those obt those obtain ained ed by coo coolin ling g in air are permissib permissible le to ach achiev ievee specified mechanical properties, provided that the plates are subsequently tempered in the temperature range from 1100 to 1300°F [595 to 705°C].
Copper, max %
Heat analysis Product analysis
0.40 0.43
Nickel, max %A
Heat analysis Product analysis
0.40 0.43
Chromium, Chromi um, max %A,B
Heat analysis Product analysis
0.30 0.34
Molybdenum, max %A,B
Heat analysis Product analysis
0.12 0.13
Vanadium, max %C
Heat analysis Product analysis
0.03 0.04
Columbium, max %D
Heat analysis Product analysis
0.02 0.03
Titanium, max %E
Heat analysis Product analysis
0.03 0.04
Boron, max %
Heat analysis Product analysis
0.0010 0.0015
A
In addition for each heat, based upon the heat analysis, the sum of copper, nickel, chromium, and molybdenum shall not exceed 1.00 %, unless one or more of those elements are specified or restricted by the applicable product specification for the applicable grade, class, and type. B In addition for each heat, based upon the heat analysis, the sum of chromium and molybdenum shall not exceed 0.32 %, unless one or both of those elements are specified or restricted by the applicable product specification for the applicable grade, class, and type. C By agreement between the purchaser and the supplier, the heat analysis limit for vanadium is permitted to be increased to a value not higher than 0.10 %, and the product analysis limit for vanadium is permitted to be increased to a value not higher than 0.11 %. D By agreement between the purchaser and the supplier, the heat analysis limit for columbium columb ium is permitted to be increa increased sed to a value not higher that 0.05 %, and the product analysis limit for columbium is permitted to be increased to a value not higher than 0.06 %. E By agreement between the purchaser and the supplier, the heat analysis limit for titanium is permitted to be increased to a value not higher than 0.04 %, and the product analysis limit for titanium is permitted to be increased to a value not higher than 0.05 %.
7. Chem Chemical ical Compositi Composition on 7.1 Heat Analysis: 7.1. 7. 1.1 1 Sa Samp mplin ling g fo forr ch chem emica icall an analy alysi siss an and d me meth thod odss of analysis shall be in accordance with Test Methods, Practices, and Terminology A751 Terminology A751.. 7.1.2 For each heat, the heat analysis shall include include determination of the content of carbon, manganese, phosphorus, sulfur, silicon,, nickel silicon nickel,, chrom chromium, ium, molyb molybdenum denum,, coppe copper, r, vanad vanadium, ium, columbium; any other element that is specified or restricted by the applicable product specification for the applicable grade, class, and type; aluminum, if the aluminum content is to be used in place of austenitic grain size testing of the heat (see 8.3.2.1); 8.3.2.1 ); and any oth other er aus austen tenitic itic grain refi refinin ning g elem element ent for which limits are specified in the purchase order (see 8.3.2 8.3.2)). 7.1. 7. 1.3 3 He Heat at an analy alyses ses sh shal alll co conf nfor orm m to th thee he heat at an anal alys ysis is requir req uireme ements nts of the app applica licable ble pro produc ductt spe specific cificatio ation n for the applicable applica ble grade, class, and type. In additio addition, n, for elemen elements ts that are listed in Table in Table 1 but 1 but are not specified or restricted in the applicable product specification for the applicable grade, class, and type, heat analyses shall conform to the applicable heat analysis limits given in Table in Table 1. 1. ` , , , , , ` ` ` , , ` ` , , , , ` ` , ` , ` , ` ` , , , ` ` , , ` , , ` , ` , , ` -
7.3 Referee Analysis— For For referee purposes, Test Methods, Practices, and Terminology A751 Terminology A751 shall be used. 8. Metallurgica Metallurgicall Structure
7.2 Product Analysis: 7.2.1 Samplin Sampling g for chemical analysis and methods methods of analysis shall be in accordance with Test Methods, Practices, and Terminology A751 A751.. 7.2.2 For each plate-as-rolled, plate-as-rolled, the purchaser purchaser shall have the option of chemically analyzing a broken tension test specimen or a sample taken from the same relative location as that from which the tension test specimen was obtained. 7.2.3 7.2 .3 For elements elements tha thatt are specified specified or res restri tricted cted by the applicable product specification for the applicable grade, class, and an d ty type pe,, pr prod oduc uctt an analy alyse sess sh shall all co conf nfor orm m to th thee pr prod oduc uctt analysis requirements of the applicable product specification for the applicable grade, class, and type. 7.2.4 7.2 .4 For elements elements that are listed in Table Table 1 but but ar aree no nott specified or restricted by the applicable product specification for the applicable grade, class, and type, product analyses shall confor con form m to the app applica licable ble pro produc ductt ana analys lysis is limi limits ts giv given en in Table 1. 1. Copyright ASTM International Provided by IHS under license with ASTM No reproduction or networking permitted without license from IHS
8.1 Where aus austeni tenitic tic gra grain in size testing testing is req requir uired, ed, suc such h testing shall be a McQuaid Ehn test in accordance with Test Methods E112 and and at le leas astt 70 % of the gr grain ainss in th thee ar area ea examined shall meet the specified grain size requirement. 8.2 Coarse Austenitic Grain Size— Where Where coarse austenitic grain size is specified one austenitic grain size test per heat shall be made and the grain size number so determined shall be in the range of 1 to 5 inclusive. 8.3 Fine Austenitic Grain Size: 8.3.1 8.3 .1 Exc Except ept as allo allowed wed in 8.3.2 in 8.3.2,, and when fine austenitic grain size is specified, or when the producer elects to determine the grain size, one McQuaid Ehn test per heat shall be made and the austenitic grain size number so determined shall be 5 or higher, and the chemical requirements of 8.3.2 do 8.3.2 do not apply. NOTE 1—Such austenitic grain size numbers may be achieved with lower contents of austenitic grain refining elements than 8.3.2 than 8.3.2 requires requires for austenitic grain size testing to be waived.
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A20/A20M − 13 8.3.2 Unless testing testing for fine austenitic austenitic grain size is specified in the purchase order or the producer elects to test for fine austenitic grain size, the austenitic grain size test need not be made for any heat that has, by heat analysis, one or more of the following: 8.3.2.1 8.3.2 .1 A total aluminum content content of 0.020 % or more. 8.3.2. 8.3 .2.2 2 An acid soluble soluble alu alumin minum um con conten tentt of 0.0 0.015 15 % or more. 8.3.2. 8.3 .2.3 3 A con content tent for an aus austeni tenitic tic gra grain in refi refinin ning g elem element ent that exceeds the minimum value agreed to by the purchaser as being sufficient for austenitic grain size testing to be waived. 8.3.2.4 8.3.2 .4 Conten Contents ts for the combination of two or more austenitic grain refining elements that exceed the applicable minimum values agreed to by the purchaser as being sufficient for austenitic grain size testing to be waived. 8.3.2.5 8.3.2 .5 The analysis for the elements mentioned mentioned in 8.3.2.1 in 8.3.2.1,, 8.3.2.2,, 8.3.2.3 8.3.2.2 8.3.2.3,, or or 8.3.2.4 8.3.2.4 shall be included in the test report.
9.3.6 9.3. 6 In Indi dicat catio ions ns on th thee ed edge gess of a pl plat atee cu cutt du duri ring ng th thee fabr fa brica icatio tion n sh shal alll be ca caus usee fo forr re rejec jectio tion n of th thee pl plat atee at th thee discretion of the purchaser if the magnitude exceeds the limits given in Columns 5 and 6 of Table A1.14 [A2.14]. The defects may be removed and replaced with weld metal (see 9.4 9.4). ). 9.3.7 9.3 .7 Fab Fabric ricato ators rs sho should uld be awa aware re that edg edgee cra cracks cks may initiat ini tiatee upo upon n ben bendin ding g a she sheare ared d or bur burned ned edge dur during ing the fabrication process. This is not considered to be a fault of the steel, but is rather a function of the induced cold work or heat affected zone. 9.4 Repair by Welding: 9.4. 9. 4.1 1 Repair Repair we weld ldin ing g sh shal alll be pe perm rmitt itted ed on only ly wi with th th thee approval of the purchaser. 9.4.2 Preparation for repair welding shall include inspection to confirm complete removal of the defect. 9.4.3 9.4 .3 Rep Repair airss sha shall ll be mad madee util utilizin izing g wel weldin ding g pro proced cedure uress qua li lifie d in acc or orda nc nc e wit h Sec ti tion IX of t he he ASME ASM E Boiler Boiler and Pre Pressur ssuree Vesse Vessell Code Code and rep repair air weld welding ing shall sha ll be don donee by wel welder derss or wel weldin ding g ope operato rators rs meet meeting ing the qualification requirements of Section IX. 9.4.4 9.4 .4 The wel weld d meta metall sha shall ll hav havee the A-numbe A-numberr ana analys lysis is correspond corre sponding ing to the equiv equivalent alent ASME P-number P-number of the plate, except that A-1 or A-2 analysis weld metal may be employed for P-1 plates. Other weld metals may be employed that are compatible compa tible with the plate being repaired, if so appro approved ved by the purchaser. Such weld metals shall be qualified in accordance w i t h t h e r e q u i r e m e n t s of S e c t i o n I X o f t h e ASME Boiler and Pressure Vessel Code. 9.4.5 9.4 .5 If Charpy Charpy imp impact act tests of the plate are req requir uired, ed, the welding procedure qualification tests shall also include Charpy impact tests of the weld, the heat-affected zone, and the plate, and the test results shall be reported to the purchaser. 9.4.6 If the plate is subjec subjected ted to normalizing, normalizing, quenching quenching and tempering, hot forming, or post-weld heat treating, the welding procedure qualification test plates and the weld repaired plate shall be subjected to the thermal heat treatment as specified by the purchaser. 9.4.7 In addition, addition, repair welds shall meet the requir requirements ements of the construction code specified by the purchaser.
9. Quali Quality ty 9.1 General— Plates Plates shall be free of injurious defects and shall have a workmanlike finish. 9.2 Surface Imperfections: 9.2.1 For plates produced produced from plateplate-as-ro as-rolled, lled, all injuri injurious ous surface imperfections shall be removed by the manufacturer. For plates produced from coil, all injurious surface imperfections shall be removed by the processor. 9.2.1. 9.2 .1.1 1 Sha Shallo llow w imp imperf erfecti ections ons sha shall ll be gro ground und to sou sound nd metal; the ground area shall be well faired and the thickness of the ground ground pla plate te sha shall ll not be red reduce uced d bel below ow the minimum minimum thickness permitted. 9.2.1.2 9.2.1 .2 All surface imperfectio imperfections, ns, the removal of which will redu re duce ce th thee pl plate ate th thick ickne ness ss be belo low w th thee min minimu imum m th thick ickne ness ss permitted, shall be cause for rejection of the plate, except that, by agreement with the purchaser, the metal so removed may be replaced with weld metal (see 9.4 9.4)). 9.3 Edge Imperfections: 9.3.1 Laminar Laminar-type -type discontinu discontinuities ities 1 in. [25 mm] and less in lengt len gth h vi visi sibl blee to th thee un unai aide ded d ey eyee on an ed edge ge of a pl plate ate as prepared prepar ed for shipme shipment nt by the manufacturer manufacturer or proce processor ssor are acceptable and do not require exploration. 9.3.2 All larger discontinuities discontinuities shall be explored to deter deter-mine their depth and extent. Discontinuities shall be considered continuous when located in the same plane within 5 % of the plate thickness and separated by a distance less than the length of the smaller of two adjacent discontinuities. 9.3.3 Indica Indications tions visible visible to the unaid unaided ed eye on the cut edges of a plate as prepared for shipment by the manufacturer or processor shall not exceed the limits given in Columns 1 and 2 of Table A1.14 [A2.14]. 9.3.4 Large Largerr indications indications shall be remov removed ed by the manufacturer tur er or pro proces cessor sor by gri grindi nding, ng, pro provid vided ed that the res result ultant ant cavity does not exceed the limits given in Columns 3 and 4 of Table A1.14 [A2.14]. 9.3.5 9.3 .5 Ind Indicat ication ionss of gre greater ater mag magnit nitude ude sha shall ll be cau cause se for rejec re jectio tion n of th thee pl plate ate,, ex excep ceptt th that, at, by ag agre reem emen entt wi with th th thee purchaser, the defects may be removed and replaced with weld metal (see 9.4 9.4)).
10. Test Methods Methods 10.1 10. 1 All tests sha shall ll be con conduc ducted ted in acco accorda rdance nce with Test Methods and Definiti Methods Definitions ons A370 A370.. 10.2 Yield strength strength shall be determ determined ined by either the 0.2 % offset method or the 0.5 % extension under load method, unless otherwise stated in the applicable product specification. Procedures— es— For 10.3 Rounding Procedur For pur purpos poses es of det determ erminin ining g conformance with the applicable product specification, a calculated value shall be rounded to the nearest 1 ksi [5 MPa] for tensil ten silee an and d yi yiel eld d st stre reng ngth ths, s, an and d to th thee ne near ares estt un unit it in th thee rightrig ht-han hand d pla place ce of figu figures res use used d in exp expres ressin sing g the lim limitin iting g value for other values, in accordance with the rounding method given in Practice E29 E29..
11. Tension Tests Tests 11.1 Number of Test Coupons: 11.1.1 Plates Produced from As-Rolled Plates— For For other than quenched and tempered plates, one tension test coupon --`,,,,,```,,``,,,,``,`,`,``,,,-`-`,,`,,`,`,,`---
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A20/A20M − 13 shall be tak shall taken en fro from m each pla platete-asas-rol rolled led.. Two tens tension ion test coupon cou ponss sha shall ll be tak taken en fro from m each quenched quenched and tempered tempered plate, as heat treated. If plates are furnished by the manufacturer or processor in accordance with 11.4.2 and qualified by using usi ng tes testt spe specime cimens ns tak taken en fro from m hea heat-tr t-treate eated d test cou coupon ponss (includ (inc luding ing nor normaliz malized, ed, nor normali malized zed and temp tempered ered,, and quench que nched ed and tem temper pered) ed),, one ten tensio sion n tes testt cou coupon pon shall be taken from each plate-as-rolled (see Terminology A941 Terminology A941 for for the definition of plate-as-rolled). 11.1.2 Plates Produced Produced from Coil and Furnished without Heat Tr Treatment eatment or with Stress Relieving Only— Except Except as allowed by 11.1.2.1 and 11.1.4, 11.1.4, a minimum of three tension coupons shall be taken from each coil as follows: 11.1 1.1.2. .2.1 1 The firs firstt test coupon coupon sha shall ll be tak taken en imm immedi ediatel ately y prior to the first plate to be qualified to the applicable product specification, the second test coupon shall be taken from the approximate center lap, and the third test coupon shall be taken immediately immedia tely after the last plate to be qualifi qualified ed to the applicable applicable produc pro ductt spe specifi cificati cation. on. If, dur during ing dec decoil oiling ing,, the amo amount unt of material decoiled is less than that required to reach the next standard test location, a test for qualification of that particular portion portio n of the coil shall be made from a test coupon taken from from a location adjacent to the innermost portion decoiled. 11.1.2.2 11 .1.2.2 All plates between any two test locations locations that meet the requi requirement rementss of the applica applicable ble product specification are acceptable. 11.1.2.3 11 .1.2.3 All plates between a test location that fails to meet the requirements of the applicable product specification and an adjac ad jacen entt te test st lo locat catio ion n th that at mee meets ts th thee re requ quir ireme ement ntss of th thee applicable product specification are rejectable, except that the processor has the option to make other tests after cutting back the coil in either direction. Plates es Pr Prod oduc uced ed fr from om Co Coil il an and d Fu Furn rnis ishe hed d He Heat at 11.1.3 Plat Tre reat ated ed by Oth Other er tha than n Str Stress ess Rel Reliev ieving ing— — For F or ot othe herr th than an quenched and tempered plates, one tension test coupon shall be taken from each coil. Two tension test coupons shall be taken from each quenched and tempered plate, as heat treated. 11.1.4 Plates Produced from Coil and Qualified Using Test Specimens Specim ens Taken fro from m Test Coup Coupons ons Heat Treated Treated by Other than Stress Relieving— One One tension test coupon shall be taken from each coil.
produc prod uctt sp spec ecific ificati ation on or th thee pu purc rcha hase se or orde derr. If th thee he heat at-treatment temperatures are not specified, the manufacturer or proces pro cessor sor sha shall ll hea heatt tre treat at the cou coupon ponss und under er con condit dition ionss it considers appropriate. The purchaser shall be informed of the procedure followed in heat treating the specimens. 11.4.3 11 .4.3 If app approv roved ed by the pur purcha chaser ser,, the pro proced cedure uress of 11.4.2 may be imp implem lemen ente ted d on pl plate atess he heat at tr trea eated ted by th thee manufacturer or processor. 11.4.4 11 .4.4 For plates plates tha thatt are heat tre treated ated with a coo cooling ling rate faster than still-air cooling from the austen austenitizing itizing temperature, temperature, one of the following shall apply in addition to other requirements specified herein: 11.4.4.1 11 .4.4.1 The gage length of the tensio tension n test specime specimen n shall T be taken at least 1 from from any as-heat treated edge, where T i iss the thickness thickness of the plate, and shall be at least 1 ⁄ 2 in. [12.5 mm] from flame-cut or heat-affected-zone surfaces. 11.4.4.2 11 .4.4.2 A steel thermal thermal buffer buffer pad, 1 T by by 1T by by at least 3T , shall be joined to the plate edge by a partial penetration weld completely sealing the buffered edge prior to heat treatment. 11.4.4.3 11 .4.4.3 Therma Thermall insulat insulation ion or other thermal barriers barriers shall be used during the heat treatment adjacent to the plate edge wher wh eree th thee te test st sp spec ecim imen enss ar aree to be re remo move ved. d. It sh shal alll be demonstrated that the cooling rate of the tension test specimen is no faster than, and not substantially slower than, that attained by the method described in in 11.4.4.2. 11.4.4.2. 11. 1.4. 4.4. 4.4 4 Wh When en te test st co coup upon onss cu cutt fr from om th thee pl plate ate bu butt he heat at treated separately are used, the coupon dimensions shall be not less than 3T by 3T by T and each tension test specimen cut from it shall meet the requirements of of 11.4.4.1. 11.4.4.1. 11.4.4 11 .4.4.5 .5 If coo coolin ling g rat ratee dat dataa for the pla plate te and cooling cooling rate contro con troll dev devices ices for the test cou coupon ponss are available available,, the test coupons coupo ns may be heat treated separately separately in the device, provided provided that this method is approved by the purchaser.
` , , , , , ` ` ` , , ` ` , , , , ` ` , ` , ` , ` ` , , , ` ` , , ` , , ` , ` , , ` -
11.5 Test Specimen Preparation: 11.5.1 11 .5.1 Tension test specimens specimens for plates 3 ⁄ 4 in. [20 mm] and under in thickness shall be the full thickness of the plates. The test specimens shall conform to the requirements for either the 11 ⁄ 2-in. [40-mm] wide or the 1 ⁄ 2-in. [12.5-mm] wide rectangular tension test specimen of Test Methods and Definitions A370 A370.. 1 The 1 ⁄ 2-in. [40-mm] wide test specimen may have both edges parallel. paralle l. The 1 ⁄ 2-in -in.. [12 [12.5– .5–mm] mm] wide spe specime cimen n may hav havee a 3 maximum nominal thickness of ⁄ 4 in. [20 mm]. 11. 1.5. 5.2 2 For pl plat ates es up to 4 in in.. [1 [100 00 mm mm], ], in incl clus usiv ive, e, in thickness, tension test specimens may be the full thickness of thee pl th plat atee an and d co conf nfor orm m to th thee re requ quir irem emen ents ts fo forr th thee 11 ⁄ 2-in. [40– [4 0–mm mm]] wi wide de re recta ctang ngul ular ar te tens nsio ion n tes testt sp spec ecim imen en of Tes estt Methods Metho ds and Definiti Definitions ons A370 if adequate testing machine capacity is available. 11.5.3 11 .5.3 For plates plates over 3 ⁄ 4 in. [20 mm] in thickness, except as permitted in 11.5.2 in 11.5.2,, tension test specimens shall conform to the requirements for the 0.500-in. [12.5-mm] diameter test specimen of Test Methods and Definitions A370 Definitions A370.. The axis of the test speci sp ecimen men sh shal alll be lo loca cated ted mi midw dway ay be betw twee een n th thee cen cente terr of thickness and the top or bottom surface of the plate.
11.2 Orientation of Test Specimens— The The longitudinal axis of the tension test specimens shall be transverse to the final rolling direction of the plate. 11.3 Location of Test Coupons— Tension Tension test coupons shall be taken from a corner of the plate. For quenched and tempered plate pl ates, s, th thee tw two o te tens nsio ion n tes testt co coup upon onss sh shall all be ta take ken n fr from om opposite ends of the plate. 11.4 Tests from Heat-Treated Plates: 11.4.1 11 .4.1 If heat treatment is performed by the manufacturer manufacturer or processor, the test specimens shall be taken from the plate in the hea heat-tr t-treate eated d con condit dition ion or fro from m ful full-t l-thick hicknes nesss cou coupon ponss simultaneously heat treated with the plate. 11.4.2 11 .4.2 If heat treatment is to be performed performed by the fabric fabricator ator,, the plates shall be accepted on the basis of tests made on test specimens taken from full-thickness coupons heat treated in accordance with the requirements specified in the applicable Copyright ASTM International Provided by IHS under license with ASTM No reproduction or networking permitted without license from IHS
11.6 Elongation Requirement Adjustments: 11.6.1 11 .6.1 Due to the spe specime cimen n geo geometr metry y ef effec fectt enc encoun ounter tered ed when using the rectangular tension test specimen for testing thin thi n pla plate, te, adj adjust ustmen ments ts in elon elongat gation ion req requir uiremen ements ts mus mustt be 7
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A20/A20M − 13 provided for thicknesses under 0.312 in. [8 mm]. Accordingly, the following deductions shall be made from the base elongation requirements in the applicable product specification: Plate Nominal Thickness Range, in. [mm]
fication A20/A20M does not provide assurance that all products of a plate-as-rolled will be identical in tensile properties with the products tested. If the purchaser wishes to have more confide con fidence nce tha than n that pro provid vided ed by Spe Specifi cificati cation on A20 A20/A2 /A20M 0M testing procedures, additional testing or requirements, such as Supplementary Requirement S4, should be imposed.
Elongation Deduction, % 0 .5 1 .0 1 .5 2 .0 2 .5 3 .0 3 .5 4 .0 4 .5 5 .0
0.299–0.311 [7.60–7.89] 0 . 2 8 6 – 0 .2 9 8 [7 .3 0 – 7 .5 9 ] 0 . 2 7 3 – 0 .2 8 5 [7 .0 0 – 7 .2 9 ] 0 . 2 5 9 – 0 .2 7 2 [6 .6 0 – 6 .9 9 ] 0 . 2 4 6 – 0 .2 5 8 [6 .2 0 – 6 .5 9 ] 0 . 2 3 3 – 0 .2 4 5 [5 .9 0 – 6 .1 9 ] 0 . 2 1 9 – 0 .2 3 2 [5 .5 0 – 5 .8 9 ] 0 . 2 0 6 – 0 .2 1 8 [5 .2 0 – 5 .4 9 ] 0 . 1 9 3 – 0 .2 0 5 [4 .9 0 – 5 .1 9 ] l e s s th a n 0 .1 9 3 [ 4 .9 0 ]
11.8 Appendix X2 provides additional information on the variability of tensile properties in plates for pressure vessels. 12. Notch-T Notch-Toughness oughness Tests Tests 12.1 Charpy V-Notch Tests: 12.1.1 Number of Tests— Except Except for quenched and tempered plates, and except as allowed by 12.1.1.1 and 12.1.1.2, 12.1.1.2, one impact test (3 specimens) for each specified orientation (see 12.1.2)) shall be made from each plate-as-rolled. For quenched 12.1.2 and tempered plates, one impact test shall be made from each plate, as heat treated. 12.1.1.1 Plates Ordered Without the Heat Treatment Speci fied by the Applicable Product Specification— If If the applicable product specification requires heat treatment but the plates are ordered without such heat treatment and Charpy V-notch tests are specified, one coupon shall be taken from each plate-asrolled. The coupon shall be heat treated in accordance with the applicable product specification and the purchase order and the plate pl ate sh shal alll be qu qual alifie ified d by tes testt sp spec ecime imens ns ta take ken n fr from om th thee heat-treated coupon. Plates Pr Produ oduced ced fr from om Coi Coil— l— If 12.1.1.2 Plates If Charp Charpy y V-notc -notch h tests are specified, the number of impact tests required shall be the same as the number specified for tension tests in 11.1.2 11.1.2 or or 11.1.3,, whichever is applicable. The test coupons shall be taken 11.1.3 from the material after decoiling and leveling. 12.1.2 Orientation of Test Specimens— The The long axis of the test specimens shall be oriented either longitudinal (parallel to the final direction of rolling) or transverse (transverse to the final direction of rolling), as specified in the applicable product specification or the purchase order. 12.1.3 Location of Test Coupons— The The impact test coupons shall be taken adjacent to the tension test coupons. The impact test coupons shall be subject to the same requi requirement rementss as those specified for tension tests in 11.4 in 11.4,, except that the provisions of 11.4.4.1 apply to the area under the notch of the impact test spec sp ecim imen en in inst stead ead of to th thee ga gage ge le leng ngth th of th thee ten tensio sion n te test st specimen. Test Method— Impact 12.1.4 Test Impact testing shall be performed in accordance accord ance with Test Metho Methods ds and Definiti Definitions ons A370 using Charpy V-notch V-notch (Type A) specimens as shown in Test Methods and Definitions A370 Definitions A370.. Except as allowed by 12.1.4.1 by 12.1.4.1,, full-size specimens (0.394 by 0.394 in. [10 by 10 mm]) shall be used if the plate thickness permits, and their central axis shall correspond as near as practical to the 1 ⁄ 4t plane plane in the plate thickness thee pl plat atee th thick ickne ness ss is in insu sufffic icien ientt to ob obtai tain n fu full ll-s -size ize t . If th specim spe cimens ens,, the lar larges gestt pos possib sible le sub subsize size spe specim cimens ens sha shall ll be used. 12.1.4 12. 1.4.1 .1 For pla plates tes that nor normall mally y hav havee abs absorb orbed ed ene energ rgy y values in excess of 180 ft·lbf [245 J] if tested using full-size specimens at the specified testing temperature, subsize 0.394 by 0.264 in. [10 by 6.7 mm] specimens may be used in lieu of fullfu ll-si size ze sp spec ecime imens ns;; ho howe weve verr, if th this is op optio tion n is us used ed,, th thee
11.6.2 Due to the inher 11.6.2 inherently ently lower elongation elongation that is obtainable in thicker plate, adjustments in elongation requirements in 2-in. [50-mm] gage length shall be provided for thicknesses over 3.5 in. [90 mm]. Accordingly, the following deductions shall be made from the base elongation requirements in 2 in. [50 mm] prescribed in the applicable product specification: Plate Nominal Thickness Range, in. [mm] 3 . 5 0 1 – 3 . 9 9 9 [9 0 .0 0 – 1 0 2 .4 9 ] 4.000–4.499 [102.50–114.99] 4.500–4.999 [115.00–127.49] 5 . 0 0 0 – 5 . 4 9 9 [1 2 7 . 5 0 – 1 3 9 . 9 9 ] 5 . 5 0 0 – 5 . 9 9 9 [1 4 0 . 0 – 1 5 2 .4 9 ] 6.000 and thicker [152.50 and thicker]
Elongation Deduction, % 0 .5 1 .0 1 .5 2 .0 2 .5 3. 0
11.6 1.6.3 .3 A character characterist istic ic of cer certain tain types of allo alloy y stee steels ls is a local disproportionate increase in the degree of necking down or contraction of the test specimens during the tension test, resulting in a decrease in the percentage of elongation as the gage length is increased. The effect is not so pronounced in thicker plates. For such material, if so stated in the applicable product specification for plates up to 3 ⁄ 4 in. [20 mm], inclusive, in th thick ickne ness ss,, if th thee pe perc rcen entag tagee of el elon onga gatio tion n of an 88-in in.. [200-m [20 0-mm] m] gag gagee len length gth test spe specime cimen n fall fallss not more tha than n 3 percentage points below the amount prescribed, the elongation shall be consid considered ered satisfactory satisfactory if the percentage of elong elongation ation in 2 in. [50 mm] across the break is not less than 25 %. 11. 1.6. 6.4 4 The te tens nsile ile re requ quir irem emen ents ts tab tables les in ma many ny of th thee product produ ct specifi specification cationss cover covered ed by this genera generall requi requirement rementss specific spe cificatio ation n spe specif cify y elo elonga ngatio tion n req requir uiremen ements ts in bot both h 8-i 8-in. n. [200-mm] and 2-in. [50-mm] gage lengths. Unless otherwise provided in the applicable product specification, both requirements are not required to be applied simultaneously, and the elongation need only be determined in the gage length appropria pr iate te fo forr th thee te test st sp speci ecime men n us used ed.. Af After ter sel select ectio ion n of th thee approp app ropria riate te gag gagee len length gth,, the elo elonga ngation tion req requir uireme ement nt for the alternative gage length shall be deemed not applicable. 11.7 This specification does not provi 11.7 provide de requi requirement rementss for produc pro ductt tens tension ion test testing ing sub subseq sequen uentt to shi shipme pment nt (se (seee 15.1). 15.1). Therefore, the requirements of 11.1 of 11.1 through 11.6 and Section 16 apply 16 apply only for tests conducted at the place of manufacture prior to shipment. Compliance to Specification A20/20M and the app applica licable ble pro produc ductt spe specific cificatio ation n doe doess not pre preclu clude de the possibility that product tension test results may vary outside specifie spe cified d ran ranges ges.. The ten tensile sile pro proper perties ties will var vary y with within in the same plate-as-rolled plate-as-rolled or piece, be it as-ro as-rolled, lled, control-rolled control-rolled,, or heat-treated. heat-tr eated. The purch purchaser aser should, therefore, be aware that tension testing in accordance with the requirements of Speci--`,,,,,```,,``,,,,``,`,`,``,,,-`-`,,`,,`,`,,`---
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A20/A20M − 13 acceptance value shall be 75 ft·lbf [100 J] minimum for each test specimen and the lateral expansion in mils [micrometres] shall be reported. 12.1.5 Test The test temperature shall be as Test Temperat emperature— ure— The specified in the purchase order, except that the manufacturer or processor shall have the option of using a lower test temperature. If a test temperature temperature is not specified in the purchase order, order, testss sha test shall ll be con conduc ducted ted at a temp tempera eratur turee no higher than is give gi ven n in Tab able le A1 A1.1 .15 5 [A [A2. 2.15 15]] fo forr th thee ap appl plica icabl blee pr prod oduc uctt specification, grade, class, and plate thickness. The actual test temperature used shall be reported with the test results. 12.1.6 Acceptance Criteria— Unless Unless otherwise agreed upon, the acceptance criteria shall be as given in Table A1.15 [A2.15] for the applicable product specification, grade, class, and plate thickness. 12.1.6 12. 1.6.1 .1 If the acce accepta ptance nce crit criteri eriaa is bas based ed upo upon n ene energ rgy y absorption of a full-size specimen, the acceptance criteria for the various subsize specimens shall be as given in Table A1.16 [A2.16], except as otherwise provided in 12.1.4.1 12.1.4.1.. 12.1.6 12. 1.6.2 .2 If the acce accepta ptance nce cri criter terion ion is bas based ed upo upon n late lateral ral expansion opposite the notch, the acceptance value shall be the same for all sizes of test specimens. 12.1.7 Marking— The The lett letters ers “L “LTV” TV” sha shall ll be sten stencile ciled d or stamped on each plate following the class number, grade, etc. 12.1.8 Variability— The The impact properties of steel can vary withi wit hin n th thee sa same me pl plate ate-a -ass-ro rolle lled d or pi piec ece, e, be it asas-ro roll lled ed,, control-rolled, or heat-treated. The purchaser should, therefore, be aware that testing of one plate-as-rolled does not provide assuran assu rance ce tha thatt all loca locatio tions ns wit within hin a pla platete-asas-rol rolled led wil willl be identical identic al in toughness with the locatio location n tested. Norm Normalizing alizing or quenching and tempering the product will reduce the degree of variation. 12.1.8.1 Appendix Appendix X3 provides provides additi additional onal infor information mation on the variability of Charpy V-notch test properties in plates for pressure vessels.
the manufacturer (for plates produced in discrete cut lengths of flat product) or the processor (for plates produced from coil and for subdivided plates (see 13.4 13.4)). )). 13.1.2 13. 1.2 Plat Plates es tha thatt are require required d to be hea heatt trea treated ted,, but have not been so heat treated, shall be marked, by the manufacturer or processor, with the letter “G” (denoting green) following the required ASTM designation mark, except that “G” marking is not necessary if such plates are for shipment, for the purpose of obtaining the required heat treatment, to an organization under the manufacturer’s control. Such plates shall have been qualified for shipment on the basis of test specimens that have been so heat treated. Plates that are required to be heat treated, and have been so heat treated, shall be marked, by the party that performed the heat treatment, with the letters “MT” (denoting materia mate riall trea treated ted)) fol follow lowing ing the req requir uired ed AST ASTM M des design ignatio ation n mark. NOTE 2—Any 2—Any str stress ess reli relief ef of tes testt spe specim cimens ens int intend ended ed to sim simula ulate te post-weld heat treatment is not included in the above heat treatment.
13.2 Types of Marking: 13.2.1 13.2. 1 Except as allowed allowed by 13.4 by 13.4,, the required markings for 1 plates over ⁄ 4 in. [6 mm] in thickness shall be by steel die stampin stam ping, g, unl unless ess pai paint nt mar markin king g is spe specifie cified d in the pur purcha chase se order. 13.2.2 13.2. 2 Except as allowed allowed by 13.4 by 13.4,, the required markings for 1 plates ⁄ 4 in. [6 mm] and under in thickness shall be by paint markin mar king g or by stee steell die sta stampi mping ng usi using ng low low-st -stres resss (ei (eithe therr round-nose or interrupted-dot) impressions. 13.3 Location of Markings: 13.3.1 13.3. 1 Except as allowed allowed by 13.4 by 13.4,, the required markings for plates pla tes wit with h a max maximu imum m leng lengthw thwise ise or cro crossw sswise ise dim dimens ension ion more than 72 in. [1800 mm] shall be in at least two places on each finished plate, at least 12 in. [300 mm] from the edges of the plate. 13.3.2 13.3. 2 Except as allowed allowed by 13.4 by 13.4,, the required markings for plates with a maximum lengthwise and crosswise dimension of 72 in. [1800 mm] or less shall be in at least one place on each finished plate, approximately midway between the center and an edge of the plate.
12.2 Drop-Weight Tests: 12.2.1 12.2. 1 Where specified, specified, one drop-weight drop-weight test, consis consisting ting of a se sett of tw two o te test st sp spec ecim imen ens, s, sh shal alll be ma made de to th thee sa same me frequency stated in 12.1.1 12.1.1 in in accordance with Method E208 E208.. 12.2 12 .2.2 .2 Th Thee te test st co coup upon onss sh shall all be ob obtai taine ned d ad adjac jacen entt to a tension tens ion test cou coupon pon.. For plates pro produc duced ed fro from m coi coil, l, the test coupon locations shall be the same as for Charpy V-notch tests. (See 12.1 (See 12.1..) The provisions of 12.1.3 of 12.1.3 shall also apply. 12.2.3 12. 2.3 The testing testing temp tempera eratur turee sha shall ll be as spe specifie cified d in the applicable product specification or the purchase order. 12.2.4 12.2. 4 Accept Acceptance ance shall be on the basis of no-break perfor performance of both test specimens at the specified testing temperature. 12.2.5 12. 2.5 The pla plates tes shall be mar marked ked as req requir uired ed in 12.1.7, 12.1.7, except that the letters “LTD” shall be used instead of “LTV.”
13.4 Subdivided Plates: 13.4.1 13.4. 1 By agreement between between the purchaser and the manufacturer or processor, each subdivided plate (a plate separated from a master plate) shall be legibly marked with the name, brand, bra nd, or tra tradem demark ark of the or organ ganiza ization tion that sub subdiv divide ided d the plate plus a code traceable to the required markings, provided that the information required in 13.1 13.1,, cross referenced to that code, is furnished with the plates. 13.4.2 13.4. 2 By agreement between between the purchaser and the manufacturer or processor, subdivided plates that are from the same master plate and placed in secured lifts shall have the information required in 13.1 in 13.1 paint paint marked on the top piece of each lift or shown on a substantial tag attached to each lift.
13. Ident Identifica ification tion of Plates 13.1 Required Markings: 13.1.1 13. 1.1 Exc Except ept as allo allowed wed by 13.4, 13.4, plates shall be legibly marked mar ked with the fol follow lowing ing inf inform ormatio ation: n: app applica licable ble AST ASTM M designation (see 1.1 (see 1.1)) (year of issue not required); “G” or“ MT” if applic applicable able (see 13.1.2) 13.1.2); app applica licable ble gra grade, de, typ type, e, and class; heat number; plate identifier; and name, brand, or trademark of ` , , , , , ` ` ` , , ` ` , , ,
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13.5 Bar Coding— In In addition to the requirements of 13.1 of 13.1 to to 13.4 inclusive, the manufacturer or processor shall have the option of using bar coding as a supplementary identification method. NOTE 3—Bar coding should be consistent with AIAG Standard B 1.
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A20/A20M − 13 is more than 3 ⁄ 4 in. [20 mm] from the center of the gage length of a 2-in. [50-mm] test specimen or is outside the middle half of th thee ga gage ge len lengt gth h of an 88-in in.. [2 [200 00-m -mm] m] tes testt sp spec ecime imen n as indicated by scribe marks on the test specimen before testing, one retest shall be allowed. 16.1.3 16.1. 3 If the results from an origin original al tension test specimen fail to meet the specified requirements but are within 2 ksi [10 MPa] of the required tensile strength or within 1 ksi [5 MPa] of th thee re requ quir ired ed yi yield eld st stre reng ngth th or yi yield eld po poin int, t, or wi with thin in 2 percentage points of the required elongation or reduction of area, one retest shall be permitted to replace the failing test. 16.1 16 .1.4 .4 Th Thee re resu sults lts of th thee re retes testt sh shal alll me meet et th thee sp speci ecifie fied d requirements.
14. Permissible Variations Variations in Dimensions or Mass 14.1 On 14.1 Onee cu cubi bicc fo foot ot of ro roll lled ed st steel eel sh shall all be as assu sume med d to weigh 490 lb, unless otherwise stated in the applicable product specification. One cubic metre of rolled steel is assumed to have ha ve a ma mass ss of 78 7850 50 kg kg,, un unle less ss ot othe herw rwis isee st stat ated ed in th thee applicable product specification. 14.2 For carbon steel plates the permis permissible sible variations variations for dimens dim ension ionss sha shall ll not exc exceed eed the app applica licable ble limi limits ts stat stated ed in Annex A1, Table A1.1 to Table A1.9, and Table A1.13 [Annex A2, Table A2.1 to Table A2.9, and Table A2.13]. 14.3 For allo 14.3 alloy y ste steel el pla plates tes the per permiss missibl iblee var variati iations ons for dimens dim ension ionss sha shall ll not exc exceed eed the app applica licable ble limi limits ts stat stated ed in Annex Ann ex 1, Table A1.1 to Tabl ablee A1. A1.4, 4, Tabl ablee A1. A1.8, 8, and Tabl ablee A1.10 to Table A1.13. [Annex 2, Table A2.1 to Table A2.4, Table A2.8 and Table A2.10 to Table A2.13].
16.2 Charpy V-Notch Tests: 16.2.1 16. 2.1 The ret retest est pro provis vision ionss of Test Met Method hodss and Definitions A370 tions A370 shall apply, except that the 5 ft·lbf [7 J] absolute minimum for an individual specimen shall not apply if two thirds of the specified minimum average is less than 5 ft·lbf [7 J]. 16.2.2 16. 2.2 If Cha Charpy rpy V-no -notch tch imp impact act tes testt late lateral ral exp expans ansion ion values are specified, if the value of one specimen falls below the specified minimum value and not below 2 ⁄ 3 of the specified minimu min imum m val value, ue, and if the average average of the three spe specim cimens ens equals equ als or exc exceed eedss the spe specifie cified d min minimu imum m val value, ue, a rete retest st of three additional specimens may be made. Each of the three retest specimens shall equal or exceed the specified minimum value. 16.2.3 16. 2.3 If the required required val values ues are not obtained obtained on Cha Charpy rpy V-notch retests as specified in 16.2.1 in 16.2.1 and and16.2.2 16.2.2,, or if the values in the initial test are below the values required for retest, no further retests are permitted unless the plate is heat treated or reheat treated. treated. After heat treatment or reheat treatment, treatment, a set of three specimens shall be tested and each shall equal or exceed the specified minimum value. 16.2.4 16. 2.4 If the opt option ion of 12.1.4.1 of 12.1.4.1 is used and the test result falls below the 75 ft·lbf [100 J] minimum specified, another test may be made using full-size test specimens.
14.4 Conversions of Permitted Variations from Fractions of Permitted variations in dimensions for an Inch to Decimals— Permitted products covered by this specification are generally given as frac fr actio tions ns of in inch ch an and d th these ese re remai main n th thee of offfici icial al pe perm rmitt itted ed variations, variati ons, where so stated. If the materia materiall is to be measur measured ed by equipment equipm ent repor reporting ting dimensions as decimal decimals, s, conv conversion ersion of permitted variations from fractions of an inch to decimals shall be made to three decimal places; using the rounding method prescribed in Practice E29 E29.. 15. Inspection and Testing Testing 15.1 15. 1 The ins inspec pector tor rep repres resent enting ing the pur purcha chaser ser sha shall ll hav havee entry at all times while work on the contract of the purchaser is being performed, to all parts of the manufacturer’s works that concern the manufacture of the plate ordered. The manufacturer factur er shall af afford ford the inspec inspector tor all reason reasonable able facilities to be satisfied that the plate is being furnished in accordance with this gener general al requi requirement rementss specifi specification cation,, the applic applicable able prod product uct specification, specific ation, and the purch purchase ase order order.. All tests (except prod product uct analysis) and inspection shall be made at the place of manufacturee prior to shipm factur shipment, ent, unless other otherwise wise specified, and shall be so con conduc ducted ted as not to int interf erfere ere unnecess unnecessari arily ly with the operation of the manufacturer’s works. ` , , , , , ` ` ` , , ` ` , , , , ` ` , ` , ` , ` ` , , , ` ` , , ` , , ` , ` , , ` -
17. Retreatm Retreatment ent 17.1 If any heat-treated heat-treated plate fails to meet the mechanical requirements of the applicable product specification, the manufacturer or processor shall have have the option of heat treating the plate again. All mechanical-property tests shall be repeated and the plate surface shall be reexamined for surface defects when it is resubmitted for inspection.
15.2 If plates are produced produced from from coil, 15.1 coil, 15.1 shall shall apply to the “processor” instead of to the “manufacturer” and the “place of process” shall apply instead of the “place of manufacture.” If plates plat es are pro produc duced ed fro from m coi coill and the pro process cessor or is dif differ ferent ent from the manufacturer, the inspector representing the purchaser shall have free entry, at all times while work on the contract of the purchaser is being performed, to all parts of the manufacture tu rer’ r’ss wo work rkss th that at co conc ncer ern n th thee ma manu nufa fact ctur uree of th thee pl plate ate ordered.
18. Reje Rejectio ction n 18.1 18. 1 Any rejection rejection based upo upon n pro produc ductt ana analys lysis is mad madee in accordance with the applicable product specification shall be reported repor ted to the supplier and sample sampless that represent the rejected plate shall be preserved for 2 weeks from the date of notification of such rejection. In case of dissatisfaction with the results of the tests, the supplier shall have the option of making claim for a rehearing within that time.
16. Rete Retests sts Tension Test— In 16.1 Tension In add additio ition n to the pro provis vision ionss of Test Methods and Definitions A370 Definitions A370,, the following retest provisions shall apply: 16.1.1 16.1. 1 If any test specime specimen n shows defective machining, machining, or develops flaws, it may be discarded and another test specimen substituted. 16.1.2 16. 1.2 If the percentag percentagee of elo elonga ngatio tion n of any tension tension test specimen is less than that specified, and any part of the fracture Copyright ASTM International Provided by IHS under license with ASTM No reproduction or networking permitted without license from IHS
18.2 Plates that show injurious injurious defects subsequent subsequent to their acceptance at the manufacturer’s acceptance manufacturer’s or proce processor’ ssor’ss works may be rejected. In such cases, the manufacturer or processor shall be notified. 10
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A20/A20M − 13 19.6 For plates produced produced from coil and furn furnished ished without without heat treatment or with stress relieving only, the results of all tests required by 11.1.2 shall be reported for each qualifying coil.
19. Test Reports 19.1 The manufacturer manufacturer or proce processor ssor shall report the results of all tests required required by the applicable product product specification, specification, the applicable supplementary requirements, and the purchase order. The heat number, the plate identifier of the plate tested, and the nominal plate thickness shall be shown on the test report. Thee ye Th year ar-d -date ate of th thee sp speci ecific ficati ation on to wh whic ich h th thee pl plat ates es ar aree furnished shall be included in the test report. 19.1.1 19.1. 1 In reporting elongation elongation values, both the percen percentage tage increase and the original gage length shall be stated.
19.7 A signature signature is not requi required red on the test report; however however,, the document shall clearly identify the organization submitting the rep report ort.. Not Notwit withst hstand anding ing the abs absenc encee of a sig signatu nature, re, the organization submitting the report is responsible for the content of the report. 19.8 Copies of the origi original nal manufacturer’s manufacturer’s test report shall be included with any subsequent test report.
19.2 For plates rolled from from a strand strand-cast -cast slab with a reduction ra tion ratio tio in th thee ra rang ngee fr from om 2. 2.0: 0:1 1 to 3. 3.0: 0:1, 1, ex exclu clusi sive ve,, th thee specific practices (see 5.3.4 (see 5.3.4 and and 5.3.6 5.3.6)) that were used by the manufacturer shall be reported, and the test reports shall state that the limitations of 5.3 5.3 have have been met.
19.9 A tes 19.9 testt rep report ort,, cer certific tificate ate of com complia pliance nce,, or sim similar ilar docume doc ument nt pri printe nted d fro from m or use used d in elec electro tronic nic form fro from m an electro elec tronic nic dat dataa int interc erchan hange ge (ED (EDI) I) tran transmis smissio sion n sha shall ll be regarded as having the same validity as a counterpart printed in the cer certifie tifier’s r’s fac facilit ility y. The con conten tentt of the EDI tra transm nsmitte itted d document must meet the requirements of the invoked ASTM standard(s) and conform to any existing EDI agreement between twe en the pur purcha chaser ser and the sup supplie plierr. Not Notwith withstan standin ding g the absenc abs encee of a sig signat nature ure,, the or organ ganizat ization ion sub submitt mitting ing the EDI transmission is responsible for the content of the report.
19.3 All heat treatment, exclusive exclusive of subcritical heating heating to soften thermally cut edges, shall be reported, including temperature ranges and times at temperature. This exclusion does nott ap no appl ply y to th thos osee pl plate atess wi with th sp speci ecifie fied d min minimu imum m ten tensil silee strengths of 95 ksi [655 MPa] or higher, unless such subcritical heating is accomplished at temperatures at least 75 °F [40 °C] below the minimum tempering temperature. The reports shall state whether the plates only, the test coupons only, or both plates and test coupons were heat treated.
20. Pack Packagin aging, g, Marking, and Load Loading ing for Shipment 20.1 Packag Packaging, ing, marking, marking, and loading for shipment shipment shall be in accordance with those procedures recommended by Practices A700 tices A700..
19.4 If Charpy V-notc V-notch h tests are specifi specified, ed, the test specimen size used shall be reported.
20.2 For USA Government Procurement— Marking Marking for shipment of material for civil agencies shall be in accordance with Fed. Std. No. 123.
19.5 If so specified in the purchaser order, order, the manufacturer manufacturer shall also furnish a certificate of compliance stating that the plates have been manufactured, inspected, and tested in accordance with the requirements of the applicable product specification. cati on. For pla plates tes pro produc duced ed fro from m coi coil, l, the pro process cessor or sha shall ll furnish furni sh the requir required ed certific certification. ation.
21. Keyw Keywords ords 21.1 genera generall deliv delivery ery requ requireme irement; nt; pres pressure sure conta containing ining parts; part s; pr pres essu sure re ve vess ssel el ste steel els; s; ste steel el pl plate ates; s; ste steel el pl plate atess fo forr pressure vessel applications
SUPPLEMENTARY REQUIREMENTS The following standardized supplementary requirements are for use if desired by the purchaser. Those tha Those thatt are con consid sidere ered d sui suitab table le for use with a pro produc ductt spe specifi cificati cation on are list listed ed in the pro produc ductt specification. Other tests may be performed by agreement between the manufacturer or processor and the purchaser. These supplementary requirements shall apply only if specified in the purchase order, in which event the specified tests shall be made by the manufacturer or processor before shipment of the plates.
S1. Vacuum Treatment Treatment
S3. Simulated Simulated PostPost-W Weld Heat Trea reatmen tmentt of Mech Mechanic anical al Test Coupons
S1.1 Th S1.1 Thee st steel eel sh shal alll be ma made de by a pr proc oces esss th that at in inclu clude dess vacuum degassing while molten. Unless otherwise agreed upon with the purchaser, it is the responsibility of the manufacturer to select suitable process procedures.
S3.1 Prior to testing, testing, the test coupo coupons ns representing representing the plate for acce accepta ptance nce pur purpos poses es for mec mechan hanical ical pro proper perties ties sha shall ll be thermally treated to simulate a post-weld heat treatment below the critical temper temperature ature (Ac3), using the heat treatment parameterss (su eter (such ch as temp temperat erature ure ran range, ge, time time,, and coo coolin ling g rat rates) es) specified in the purchase order. For tests using specimens taken from such heat treated test coupons, the test results shall meet the requirements of the applicable product specification.
S2. Pro Product duct Analysis Analysis S2.1 A pr S2.1 prod oduc uctt an analy alysi siss sh shal alll be ma made de of ea each ch pl plate ate as rolled.. The specim rolled specimens ens for analysis shall be taken adjacent to or from a broken tension test specimen.
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A20/A20M − 13 S4. Additional Tension Tension Test Test
S8. Ultra Ultrason sonic ic Exa Examin minati ation on in Acc Accor ordan dance ce wit with h A435/ A435M
S4.1 Other Than Quenched-and-Tempered Plates —In addition to the required single tension test, a second tension test shall be made using a test specimen taken from a test coupon taken from a corner of the plate-as-rolled on the end opposite the single test specimen and in a direction parallel to the single test spe specim cimen. en. The res result ultss obt obtain ained ed usi using ng thi thiss sec second ond test specimen shall meet the requirements of the applicable product specification.
S8.1 All pla S8.1 plates tes sha shall ll be ultr ultraso asonic nically ally examined examined in acco accorrdance with the requirements of Specification A435/A435M Specification A435/A435M.. S9. Magnetic Particle Particle Examination Examination S9.1 All plate edg S9.1 edges es sha shall ll be exa examin mined ed by magnetic magnetic par par-ticles in accordance with the procedures covered in Practice E709.. The acceptability of defects revealed by this examinaE709 tion shall be judged in accordance with the requirements for quality in 9.3 in 9.3..
Quenched-an ed-and-T d-Temper empered ed Plates 2 in. [50 mm S4.2 Quench mm]] or Greater in Thickness—In addition to the required tension tests, two additiona additionall tes testt cou coupon ponss sha shall ll be take taken n fro from m the bottom bottom corner of the plate. One shall be taken at the center of the plate thickne thic kness ss and the oth other er imme immedia diately tely ben beneath eath the sur surfac face. e. Mandat Man datory ory con confor forman mance ce of the these se add additio itional nal test testss wit with h the specified properties shall be a matter of agreement between the manufacturer and the purchaser.
S10. Charpy V-Notch V-Notch Impact Transition Transition Curve
S5.2 The orientation orientation of the test specimens, whether longilongitudinall or tran tudina transve sverse rse to the dir directi ection on of rol rollin ling, g, sha shall ll be as specified in the purchase order.
S10.1 Suf Sufficient ficient impact tests of the same specimen size shall be made from the plate test material to establish a transition curve. cur ve. The tes testt tem temper peratu ature re ran range ge sha shall ll be wid widee eno enough ugh to establish establi sh the upper and lower shelf energies, energies, with sufficient sufficient testing at intermediate temperatures to permit plotting a reasonable smooth curve. A plot of the data is not required. The manufa man ufactu cturer rer sha shall ll rep report ort the spe specim cimen en ori orient entatio ation, n, tes testt temperature, temper ature, and absor absorbed bed energy for each specimen tested. Lateral Late ral exp expans ansion ion and per percen centt she shear ar sha shall ll also be rep report orted ed when specified in the purchase order. The number of plates tested and the specimen orientation orientation shall be the same as in in 12.1 12.1 unless otherwise specified in the purchase order.
S5.3 S5 .3 The te test st tem tempe pera ratu ture re an and d th thee re requ quir ired ed acc accep epta tanc ncee criteria crite ria,, if ot othe herr th than an th thos osee re requ quir ired ed in 12.1, 12.1, sh shal alll be as specified in the purchase order.
S11. S1 1. Ultrason Ultrasonic ic Exam Examinat ination ion in Acco Accordan rdance ce with A577/ A577M
S5. Charpy V-Notch V-Notch Impact Test Test S5.1 S5. 1 Char Charpy py V-no -notch tch imp impact act tes tests ts sha shall ll be con conduc ducted ted in accordance with 12.1 with 12.1..
S5.4 The rec S5.4 recor orde ded d res result ultss sh shall all in inclu clude de tes testt sp speci ecimen men orient ori entatio ation, n, test spe specim cimen en siz size, e, test temp tempera eratur ture, e, abs absorb orbed ed energy values, and, if specified in the purchase order for other than Class VI plates, lateral expansion opposite the notch. The percen per centt she shear ar fra fractur cturee app appear earanc ancee sha shall ll also be rec record orded ed if specified in the purchase order.
S11.1 All plates shall be ultrasonically S11.1 ultrasonically examined in accordance with the requirements of Specification A577/A577M Specification A577/A577M.. S12. Ultrason Ultrasonic ic Exam Examinati ination on in Acco Accordan rdance ce with A578/ A578M S12.1 All plates shall be ultras ultrasonical onically ly examined in accordance with the requirements requirements of Specification A578/A578M Specification A578/A578M.. The acceptance level shall be as specified in the purchase order.
S6. Drop-W Drop-Weigh eightt Test (for Plates 0.625 in. [16 mm] and Over in Thickness)
S13. NDT Temperatur Temperaturee Determination
S6.1 Drop-weight tests shall be be made in accordance accordance with the requir req uireme ements nts of Test Met Method hod E208. E208. The The spe specime cimens ns sha shall ll represent the plates in the final condition of heat treatment. Agreeme Agr eement nt sha shall ll be rea reache ched d bet betwee ween n the pur purcha chaser ser and the manufacturer or processor as to the number of plates to be tested and whether a maximum NDT temperature is mandatory or if the test results are for information only.
S13.1 The NDT temperature temperature shall be established in accordance with Method E208 using coupons from a single plate. Thee nu Th numb mber er of pl plat ates es to be so te test sted ed sh shal alll be su subj bjec ectt to agreeme agr eement nt bet betwee ween n the pur purcha chaser ser and the man manufa ufactur cturer er or processor. S15. Reduction of Area Measurement Measurement
S7. High-T High-Temperatur emperaturee Tension Tests
S15.1 A reduc reduction tion of area measuremen measurementt shall be taken while making the required tension test. Reduction of area shall be determined only on the 0.500-in. [12.5–mm] round specimen as shown in Fig. 5 of Test Methods and Definitions A370 A370.. The minimum acceptance limit shall be 40 %.
S7.1 A short-time short-time elevated temperature temperature tension test shall be made to represent each plate or each heat of steel as indicated by the purchaser. The specimens for testing shall be obtained as required requir ed for the room temperature temperature tensio tension n tests specifie specified d in the body bod y of thi thiss gen genera erall req requir uireme ements nts spe specific cificatio ation. n. The hig highhtemperature tests shall be made in accordance with the requirements men ts of Pr Pract actice ice E21 E21.. Mandat Mandatory ory con confor forman mance ce of suc such h additional tests with the specified properties shall be a matter for agreement between the manufacturer or processor and the purchaser. Copyright ASTM International Provided by IHS under license with ASTM No reproduction or networking permitted without license from IHS
S16. Thermal Stress Relief of Mechanical Test Test Coupons S16.1 S16 .1 Test cou coupon ponss rep repres resent enting ing the pla plates tes sha shall ll be the therrmally stress relieved by gradu gradually ally and unifo uniformly rmly heating them to a temperature between 1100 and 1200°F [595 and 650°C], or a tem tempe pera ratu ture re ra rang ngee ot othe herw rwise ise ag agre reed ed up upon on be betw tween een th thee 12
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A20/A20M − 13 manufacturer or processor and the purchaser, holding at temperature for at least 1 h/in. [2.4 min/mm] of thickness and cool co olin ing g in st still ill air to a tem tempe pera ratu ture re no nott ex exce ceed edin ing g 60 600 0 °F [315°C].
S21. Rest Restrict ricted ed Limits on Elem Elements ents For each heat, based upon the heat analysis, the content shall not exceed 0.35 % for copper, 0.25 % for nickel, 0.25 % for chromium, chrom ium, 0.08 % for molybdenum, molybdenum, or 0.70 % for for the sum of those four elements.
S17. Vacuum Carbon-Deoxidized Carbon-Deoxidized Steel
S22. Through-Thi Through-Thickness ckness Tension Tension Tests Tests
S17.1 S17. 1 Mat Mater erial ial sh shall all be va vacuu cuum m car carbo bonn-de deox oxidi idized zed,, in which case the silicon content at the time of vacuum deoxidizing shall be 0.12 % maximum, and the content of deoxidizers such as aluminum, zirconium, and titanium should be kept low enough to allow deoxidation by carbon. The test report shall sha ll ind indica icate te tha thatt the stee steell was vac vacuum uum carb carbonon-deo deoxid xidized ized.. The minimum heat analysis and product analysis requirements for silicon do not apply to vacuum carbon-deoxidized steel.
S22.1 ThroughS22.1 Through-thi thickn ckness ess ten tensio sion n test testss sha shall ll be mad madee in accorda acco rdance nce with the req requir uiremen ements ts of Spe Specifi cificati cation on A770/ A770M.. (See Ordering Info A770M Information rmation in Specifi Specification cation A770/ A770M for A770M for the additional information that may be needed.) S24. Strain Age Test Test
S19.1 Restric Restricted ted heat analys analysis is and prod product uct analysis limits are applicable, as specified in the purchase order.
S24.1 S24 .1 Test cou coupon ponss sha shall ll be giv given en a stra strain in age tre treatme atment nt designated design ated by the pur purcha chaser ser.. Cha Charpy rpy V-no -notch tch test testss sha shall ll be conducted condu cted on the strain aged specimens. specimens. Heat treatment, strain aging, agi ng, test temperatu temperature, re, and acce accepta ptance nce cri criter teria ia sha shall ll be as agreed upon between the manufacturer or processor and the purchaser.
S20. Maximum Carbon Equivalent for Weldability Weldability
S25. We Weldability ldability
S20.1 Plat S20.1 Plates es sha shall ll be sup supplie plied d with a spe specific cific maximum maximum carbon equivalent value. This value shall be based upon the heat analysis. The required chemical analysis as well as the carbon equivalent shall be reported. S20.2 The carbon equivalent equivalent shall be calculated using the following formula:
S25.1 Weldabil eldability ity tests shall be conducted. The type of test and the acceptance criteria shall be as agreed upon between the manufacturer or processor and the purchaser.
S19. Restricted Chemical Chemical Requirements Requirements
S26. LowLow-Sulfu Sulfurr Steels S26.1 The steel shall be made to 0.010 % sulfur maximum. maximum. Lower sulfur levels and sulfide shape control practices can be specified by agreement between the manufacturer or processor and the purchaser.
CE 5 C 1 Mn /6 1 ~ Cr 1 Mo1 V ! /5 1 ~ Ni1 Cu! /15.
S20.3 The max S20.3 maximu imum m val value ue of the car carbon bon equivalen equivalentt for carbon steels (including C-Mn, C-Mn-Si, C-Mn-Si-Al steels), are given in Table in Table S20.1. S20.1.
S27. Restrictive Plate Plate Flatness S27.1 Car S27.1 Carbon bon ste steel el pla plates, tes, asas-rol rolled led or nor normali malized zed,, sha shall ll conform to the permissible restrictive variations from flatness given in Table in Table S27.1 or or Table Table S27.2. S27.2. S27.2 S27 .2 High-st High-stren rength gth low low-all -alloy oy stee steell pla plates, tes, asas-rol rolled led or normalized, shall conform to the permissible restrictive variations from flatness given in Table S27.3 or or Table Table S27.4. S27.4.
TABLE S20.1 Maximum Carbon Equivalent for Weldability Spec Sp ecifi ified ed Mi Mini nimu mum m UT UTS S k s i [ M P a] 60 # UTS < 70 [415 # UTS < 485] 70 # UTS < 80 [485 # UTS < 550] UTS $ 80 [UTS $ 550]
Maxi Ma ximu mum m Ca Carb rbon on Eq Equi uiva vale lent nt Val alue ue Thickness up to 2 in. Thickness over 2 in. [50 mm] incl [50 mm] 0 .4 5 0 .4 6 0 .4 7 0.48A , B
S28. Heat Trea Treatmen tmentt in the Worki orking ng Zone of a Surv Surveyed eyed Furnace
0.48A .. .
S28.1 Plates shall be heat treated in the working working zone of a furnace that has been surveyed in accordance with Test Method A991/A A99 1/A991 991M, M, pro provid vided ed that suc such h wor workin king g zon zonee was est estabablished using a variation of 25°F [15°C] or less from the furnace set point. S28.2 The test report shall indicate that S28 applies. applies.
A
If simulated PWHT of the test coupons is specified (S3), the maximum carbon equivalent value may be increased up to 0.50 upon agreement between purchaser and supplier. B Applicable to quenched-and-tempered material; for other conditions, maximum carbon equivalent equivalent shall be by agreem agreement ent between purcha purchaser ser and suppli supplier. er. ` , , , , , ` ` ` , , ` ` , , , , ` ` , ` , ` , ` ` , , , ` ` , , ` , , ` , ` , , ` -
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A20/A20M − 13 TABLE S27.1 Permis Permissible sible Variations Variations from Flatness for Carbo Carbon n Steel Plates As-Rolled or Normal Normalized ized Ordered to Restrictive Flatness
NOTE 1—Flatness Variations for Length— The The longer dimension dimension speci specified fied is consi considered dered the length length,, and variation in flatness along the length shall not exceed the tabular amount for the specified width in plates up to 12 ft in length, or in any 12 ft of longer plates. NOTE 2— Flatness Variations for Width— The The flatness variation across the width shall not exceed the tabular amount for the specified width. NOTE 3—When the longer dimension is under 36 in., the variation in flatness along the length and across the width shall not exceed 1 ⁄ 4 in. in each direction. When the longer dimension is from 36 to 72 in., inclusive, the permissible flatness variation shall not exceed 75 % of the tabular amount for the specified width, but in no case less than 1 ⁄ 4 in. NOTE 4—The variations given in this table apply to plates that have a minimum specified tensile strength not over 60 ksi or comparable chemistry or hardness. For plates specified to a higher minimum tensile strength or comparable chemistry or hardness, the permissible variations are 11 ⁄ 2 times the amounts shown in the table below. NOTE 5—This table and these notes cover the flatness variations of circular and sketch plates based on the maximum dimensions of those plates. NOTE 6—Waviness tolerances for rectangular plates, universal mill plates, and circular and sketch plates do not apply. NOTE 7—A “Z” indicates that there is no published restricted value for the size. NOTE 8—Plates shall be in a horizontal position on a flat surface when flatness is measured. Specified Thickness, in. To ⁄ 4 , excl 1 ⁄ 4 to 3 ⁄ 8, excl 3 ⁄ 8 to 1 ⁄ 2, excl 1 ⁄ 2 to 3 ⁄ 4, excl 3 ⁄ 4 to 1, excl 1 to 2, incl 1
Permissible Variations from a Flat Surface for Specified Widths, in. 4 8 to 6 0 , e x c l ⁄ 4 16 ⁄ 16 5 16 ⁄ 16 5 16 ⁄ 16 5 16 ⁄ 16 1 ⁄ 4 3
9
6 0 to 7 2 , e x c l
7 2 to 8 4 , e x c l
16 ⁄ 16 ⁄ 4 5 16 ⁄ 16 5 16 ⁄ 16 5 16 ⁄ 16 5 16 ⁄ 16
Z ⁄ 8 3 ⁄ 8 5 16 ⁄ 16 5 16 ⁄ 16 5 16 ⁄ 16
15 3
8 4 to 9 6 , e x c l
9 6 to 1 0 8 , e x c l
Z 16 ⁄ 16 7 16 ⁄ 16 3 ⁄ 8 5 16 ⁄ 16 5 16 ⁄ 16
Z 16 1-1 ⁄ 16 1 ⁄ 2 1 ⁄ 2 3 ⁄ 8 5 16 ⁄ 16
7
15
1 0 8 to 1 2 0 , i n c l Z 1-1 ⁄ 8 9 16 ⁄ 16 1 ⁄ 2 7 16 ⁄ 16 3 ⁄ 8
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TABLE S27.2 Permis Permissible sible Variations Variations from Flatness for Carbo Carbon n Steel Plates As-Rolled or Normal Normalized ized Ordered to Restrictive Flatness
NOTE 1—Flatness Variations for Length— The The longer dimension dimension speci specified fied is consi considered dered the length length,, and variation in flatness along the length shall not exceed the tabular amount for the specified width in plates up to 3700 mm in length, or in any 3700 mm of longer plates. NOTE 2— Flatness Variations for Width— The The flatness variation across the width shall not exceed the tabular amount for the specified width. NOTE 3—When the longer dimension is under 900 mm, the variation in flatness along the length and across the width shall not exceed 6 mm in each direction. When the longer dimension is from 900 to 1800 mm, inclusive, the permissible flatness variation shall not exceed 75 % of the tabular amount for the specified width, but in no case less than 6 mm. NOTE 4—The variations given in this table apply to plates that have a minimum specified specified tensile strength not over 415 MPa or comparable comparable chemistry or hardness. For plates specified to a higher minimum tensile strength or comparable chemistry or hardness, the permissible variations are 1 1 ⁄ 2 times the amounts shown in the table below. NOTE 5—This table and these notes cover the flatness variations of circular and sketch plates based on the maximum dimensions of those plates. NOTE 6—Waviness tolerances for rectangular plates, universal mill plates, and circular and sketch plates do not apply. NOTE 7—A “Z” indicates that there is no published restricted value for the size. NOTE 8—Plates shall be in horizontal position on a flat surface when flatness is measured. Specified Thickness, mm To 6, excl 6 to 1 0 , e x c l 1 0 to 1 2 , e x c l 1 2 to 2 0 , e x c l 2 0 to 2 5 , e x c l 2 5 to 5 0 , e x c l
Permissible Permis sible Variations Variations from a Flat Surface for Specifi Specified ed Widths, mm 1200 12 00 to 15 1500 00,, ex excl cl
1500 15 00 to 18 1800 00,, ex excl cl
1800 18 00 to 21 2100 00,, ex excl cl
2100 21 00 to 24 2400 00,, ex excl cl
2400 24 00 to 27 2700 00,, ex excl cl
18 15 8 7 7 7
24 18 8 8 8 7
Z 22 10 8 8 7
Z 24 11 10 8 8
Z 27 13 13 10 8
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2700 27 00 to 30 3000 00,, in incl cl Z 29 15 13 11 8
A20/A20M − 13 TABLE S27.3 Permissible Variations from Flatness for High-Strength Low-Alloy Steel Plates As-Rolled or Normalized Ordered to Restrictive Flatness
NOTE 1—Flatness Variations for Length— The The longer dimension dimension speci specified fied is consi considered dered the length length,, and variation in flatness along the length shall not exceed the tabular amount for the specified width in plates up to 12 ft in length, or in any 12 ft of longer plates. NOTE 2— Flatness Variations for Width— The The flatness variation across the width shall not exceed the tabular amount for the specified width. NOTE 3—When the longer dimension is under 36 in., the variation in flatness along the length and across the width shall not exceed 3 ⁄ 8 in. in each direction. When the larger dimension is from 36 to 72 in., inclusive, the permissible flatness variation shall not exceed 75 % of the tabular amount for the specified width but in no case less than 3 ⁄ 8 in. NOTE 4—This table and these notes cover the flatness variations of circular and sketch plates based on the maximum dimensions of those plates. NOTE 5—Waviness tolerances for rectangular plates, universal mill plates, and circular and sketch plates do not apply. NOTE 6—A “Z” indicates that there is no published restricted value for the size. NOTE 7—Plates shall be in horizontal position on a flat surface when flatness is measured. Specified Thickness, in. To ⁄ 4 , excl 1 ⁄ 4 to 3 ⁄ 8, excl 3 ⁄ 8 to 1 ⁄ 2, excl 1 ⁄ 2 to 3 ⁄ 4, excl 3 ⁄ 4 to 1, excl 1 to 2, incl 1
Permissible Variations from a Flat Surface for Specified Widths, in. 4 8 to 6 0 , e x c l
6 0 to 7 2 , e x c l
7 2 to 8 4 , e x c l
8 4 to 9 6 , e x c l
9 6 to 1 0 8 , e x c l
16 1 ⁄ 16 7 ⁄ 8 1 ⁄ 2 7 16 ⁄ 16 7 16 ⁄ 16 3 ⁄ 8
16 1 ⁄ 16 16 11 ⁄ 16 1 ⁄ 2 7 16 ⁄ 16 7 16 ⁄ 16 7 16 ⁄ 16
Z 16 15 ⁄ 16 9 16 ⁄ 16 1 ⁄ 2 1 ⁄ 2 7 16 ⁄ 16
Z 16 17 ⁄ 16 11 16 ⁄ 16 9 16 ⁄ 16 1 ⁄ 2 1 ⁄ 2
Z 11 ⁄ 2 3 ⁄ 4 5 ⁄ 8 9 16 ⁄ 16 1 ⁄ 2
1
7
1 0 8 to 1 2 0 , i n c l Z 16 111 ⁄ 16 13 16 ⁄ 16 11 16 ⁄ 16 11 16 ⁄ 16 1 ⁄ 2
TABLE S27.4 Permissible Variations from Flatness for High-Strength Low-Alloy Steel Plates As-Rolled or Normalized Ordered to Restrictive Flatness
NOTE 1—Flatness Variations for Length— The The longer dimension dimension speci specified fied is consi considered dered the length length,, and variation in flatness along the length shall not exceed the tabular amount for the specified width in plates up to 3700 mm in length, or in any 3700 mm of longer plates. NOTE 2— Flatness Variations for Width— The The flatness variation across the width shall not exceed the tabular amount for the specified width. NOTE 3—When the longer dimension is under 900 mm, the variation in flatness along the length and acros acrosss the width shall not exceed 10 mm in each direction. When the larger dimension is from 900 to 1800 mm, inclusive, the permissible flatness variation shall not exceed 75 % of the tabular amount for the specified width, but in no case less than 10 mm. NOTE 4—This table and these notes cover the variations for flatness of circular and sketch plates based on the maximum dimensions of those plates. NOTE 5—Waviness tolerances for rectangular plates, universal mill plates, and circular and sketch plates do not apply. NOTE 6—A “Z” indicates that there is no published restricted value for the size. NOTE 7—Plates shall in a horizontal position on a flat surface when flatness is measured. Specified Thickness, mm To 6, excl 6 to 1 0 , e x c l 1 0 to 1 2 , e x c l 1 2 to 2 0 , e x c l 2 0 to 2 5 , e x c l 2 5 to 5 0 , e x c l
Permissible Permis sible Variations Variations from a Flat Surface for Specifi Specified ed Widths, mm 1200 12 00 to 15 1500 00,, ex excl cl
1500 15 00 to 18 1800 00,, ex excl cl
1800 18 00 to 21 2100 00,, ex excl cl
2100 21 00 to 24 2400 00,, ex excl cl
2400 24 00 to 27 2700 00,, ex excl cl
2700 27 00 to 30 3000 00,, in incl cl
27 22 12 11 11 10
36 27 12 11 11 11
Z 33 15 13 12 11
Z 36 17 15 13 12
Z 39 19 16 15 13
Z 43 21 18 17 13
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A20/A20M − 13 ANNEXES (Mandatory Information) A1. PERMISSIBLE VARIA VARIATIONS TIONS IN DIMENSIONS, ETC.—INCH-POUND UNITS
A1.1 Listed below are permissible variations in dimensions, and not notch ch tou toughn ghness ess inf inform ormatio ation, n, exp expres ressed sed in inc inch-p h-poun ound d units of measurement.
TABLE A1.1 Permissible Variations in Thickness for Rectangular Plates
NOTE 1—Permissible variation under specified thickness, 0.01 in. NOTE 2—Thickness to be measured at 3 ⁄ 8 to 3 ⁄ 4 in. from the longitudinal edge. NOTE 3—For thickness measured at any location other than that specified in Note in Note 2, 2, the permissible maximum over-tolerance shall be increased by 75 %, rounded to the nearest 0.01 in. Specified Thickness, in.
To 1 ⁄ 4 , excl 1 16, excl ⁄ 4 to 5 ⁄ 16 5 3 16 to ⁄ 8, excl ⁄ 16 3 16, excl ⁄ 8 to 7 ⁄ 16 7 1 16 to ⁄ 2, excl ⁄ 16 1 ⁄ 2 to 5 ⁄ 8, excl 5 ⁄ 8 to 3 ⁄ 4, excl 3 ⁄ 4 to 1, excl 1 to 2 , e x c l 2 to 3 , e x c l 3 to 4 , e x c l 4 to 6 , e x c l 6 to 1 0 , e x c l 1 0 to 1 2 , e x c l 1 2 t o 1 5 , i nc l
Tolerance Over Specified Thickness for Widths Given, in. 48 and under
Over 48 to 60, excl
60 to 72, excl
72 to 84, excl
84 to 96, excl
96 to 108, excl
108 to 120, excl
120 to 132, excl
132 to 144, excl
144 to 168, excl
168 to 182, excl
182 and over
0. 03 0. 03 0. 03 0. 03 0. 03 0. 03 0. 03 0 .0 3 0. 06 0. 09 0.11 0. 15 0 .2 3 0 .2 9 0 .2 9
0 .0 3 0 .0 3 0 .0 3 0 .0 3 0 .0 3 0 .0 3 0 .0 3 0 .0 3 0 .0 6 0 .0 9 0.11 0 .1 5 0 .2 4 0. 29 0 .2 9
0. 03 0. 03 0. 03 0. 03 0. 03 0. 03 0. 03 0. 03 0. 06 0. 09 0.11 0. 15 0 .2 4 0 .3 3 0. 35
0 .0 3 0 .0 3 0 .0 3 0 .0 3 0 .0 3 0 .0 3 0 .0 3 0. 03 0 .0 6 0 .1 0 0.11 0 .1 5 0 .2 4 0. 33 0. 35
0 .0 3 0 .0 3 0 .0 3 0 .0 3 0 .0 3 0 .0 3 0 .0 3 0 .0 4 0. 06 0. 10 0.11 0. 15 0. 24 0 .3 3 0 .3 5
0 .0 3 0. 03 0. 03 0. 03 0. 03 0. 03 0. 04 0. 04 0. 07 0.11 0. 13 0. 15 0 .2 4 0 .3 3 0. 35
0 .0 3 0 .0 3 0 .0 3 0 .0 4 0 .0 4 0 .0 4 0 .0 4 0. 05 0 .0 8 0 .1 2 0 .1 4 0 .1 5 0. 24 0. 33 0. 35
0 .0 3 0 .0 4 0 .0 4 0 .0 4 0 .0 4 0 .0 4 0 .0 4 0 .0 5 0. 10 0. 13 0. 14 0. 15 0. 24 0 .3 3 0 .3 5
0 .0 4 0 .0 4 0 .0 4 0 .0 5 0 .0 5 0 .0 5 0 .0 5 0. 06 0. 10 0. 14 0. 14 0. 15 0 .2 4 0. 33 0 .3 5
... .. . 0. 05 0. 06 0. 06 0. 06 0. 06 0 .0 7 0.11 0 .1 5 0 .1 5 0 .2 0 0. 27 0 .3 3 0 .3 5
.. . .. . . .. 0 .0 6 0 .0 6 0 .0 7 0 .0 7 0. 08 0 .1 3 0 .1 5 0 .1 7 0 .2 0 0 .2 8 0 .3 5 0. 35
. .. . .. . .. . .. . .. . .. 0 .0 7 0 .0 9 0 .1 6 .. . .. . .. . ... ... . ..
--`,,,,,```,,``,,,,``,`,`,``,,,-`-`,,`,,`,`,,`---
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A20/A20M − 13 TABLE A1.2 Permissible Variations Variations in Width and Lengt Length h for Sheared Plates 1 1 ⁄ 2 in. and Under in Thickness; Length Only for Universal Mill Plates 21 ⁄ 2 in. and Under in Thickness Perm Pe rmis issi sibl ble e Var aria iati tion ons s ov over er Sp Spec ecifi ified ed Wi Widt dth h an and d Le Leng ngth thA for Thicknesses Given in inches, in.
Spec Sp ecifi ified ed Di Dime mens nsio ions ns,, in in..
To 3 ⁄ 8,excl L e n g th To 120, excl
1 2 0 to 2 4 0 , e x c l
2 4 0 to 3 6 0 , e x c l
3 6 0 to 4 8 0 , e x c l
4 8 0 to 6 0 0 , e x c l
6 0 0 to 7 2 0 , e x c l
7 2 0 a n d o v er
W i d th over 8 to 60, excl 60 to 84, excl 84 to 108, excl 108 and over o v er 8 t o 60 , ex c l 60 to 84, excl 84 to 108, excl 108 and over o v er 8 t o 60 , ex c l 60 to 84, excl 84 to 108, excl 108 and over o v er 8 t o 60 , ex c l 60 to 84, excl 84 to 108, excl 108 and over o v er 8 t o 60 , ex c l 60 to 84, excl 84 to 108, excl 108 and over o v er 8 t o 60 , ex c l 60 to 84, excl 84 to 108, excl 108 and over o v e r 8 t o 6 0 , ex c l 60 to 84, excl 84 to 108, excl 1 08 a n d o v e r
⁄ 8 to 5 ⁄ 8 , excl
5
Width
L e n g th
W i d th
L e n g th
W i d th
L e n g th
⁄ 8 16 ⁄ 16 1 ⁄ 2 5 ⁄ 8 3 ⁄ 8 1 ⁄ 2 9 16 ⁄ 16 5 ⁄ 8 3 ⁄ 8 1 ⁄ 2 9 16 ⁄ 16 11 16 ⁄ 16 7 16 ⁄ 16 1 ⁄ 2 9 16 ⁄ 16 3 ⁄ 4 7 16 ⁄ 16 1 ⁄ 2 5 ⁄ 8 3 ⁄ 4 1 ⁄ 2 5 ⁄ 8 5 ⁄ 8 7 ⁄ 8 9 16 ⁄ 16 3 ⁄ 4 3 ⁄ 4 1
⁄ 2 ⁄ 8 3 ⁄ 4 7 ⁄ 8 3 ⁄ 4 3 ⁄ 4 7 ⁄ 8 1 1 1 1 11 ⁄ 8 11 ⁄ 8 11 ⁄ 4 11 ⁄ 4 13 ⁄ 8 11 ⁄ 4 13 ⁄ 8 13 ⁄ 8 11 ⁄ 2 13 ⁄ 4 13 ⁄ 4 13 ⁄ 4 13 ⁄ 4 2 2 2 2
16 ⁄ 16 ⁄ 2 5 ⁄ 8 3 ⁄ 4 1 ⁄ 2 5 ⁄ 8 11 16 ⁄ 16 3 ⁄ 4 1 ⁄ 2 5 ⁄ 8 11 16 ⁄ 16 7 ⁄ 8 1 ⁄ 2 5 ⁄ 8 3 ⁄ 4 7 ⁄ 8 1 ⁄ 2 5 ⁄ 8 3 ⁄ 4 7 ⁄ 8 5 ⁄ 8 3 ⁄ 4 3 ⁄ 4 1 3 ⁄ 4 7 ⁄ 8 7 ⁄ 8 11 ⁄ 8
⁄ 8 16 ⁄ 16 7 ⁄ 8 1 7 ⁄ 8 7 ⁄ 8 15 16 ⁄ 16 11 ⁄ 8 11 ⁄ 8 11 ⁄ 8 11 ⁄ 8 11 ⁄ 4 11 ⁄ 4 13 ⁄ 8 13 ⁄ 8 11 ⁄ 2 11 ⁄ 2 11 ⁄ 2 11 ⁄ 2 15 ⁄ 8 17 ⁄ 8 17 ⁄ 8 17 ⁄ 8 2 21 ⁄ 8 21 ⁄ 8 21 ⁄ 8 23 ⁄ 8
⁄ 2 ⁄ 8 3 ⁄ 4 7 ⁄ 8 5 ⁄ 8 3 ⁄ 4 13 16 ⁄ 16 7 ⁄ 8 5 ⁄ 8 3 ⁄ 4 7 ⁄ 8 1 5 ⁄ 8 3 ⁄ 4 7 ⁄ 8 1 5 ⁄ 8 3 ⁄ 4 7 ⁄ 8 1 3 ⁄ 4 7 ⁄ 8 7 ⁄ 8 11 ⁄ 8 7 ⁄ 8 1 1 11 ⁄ 4
⁄ 4 ⁄ 8 1 11 ⁄ 8 1 1 11 ⁄ 8 11 ⁄ 4 11 ⁄ 4 11 ⁄ 4 13 ⁄ 8 13 ⁄ 8 13 ⁄ 8 11 ⁄ 2 11 ⁄ 2 15 ⁄ 8 15 ⁄ 8 15 ⁄ 8 15 ⁄ 8 13 ⁄ 4 17 ⁄ 8 17 ⁄ 8 17 ⁄ 8 21 ⁄ 4 21 ⁄ 4 21 ⁄ 4 21 ⁄ 4 21 ⁄ 2
3
1
7
7
5
5
1
1 to 2, inclB
⁄ 8 to 1, excl
3
1
11
5
A
3 7
W i dt h Wi ⁄ 8 ⁄ 4 1 11 ⁄ 8 3 ⁄ 4 7 ⁄ 8 1 11 ⁄ 8 3 ⁄ 4 7 ⁄ 8 1 11 ⁄ 4 3 ⁄ 4 7 ⁄ 8 1 11 ⁄ 4 3 ⁄ 4 7 ⁄ 8 1 11 ⁄ 4 7 ⁄ 8 1 11 ⁄ 8 11 ⁄ 4 1 11 ⁄ 8 11 ⁄ 4 13 ⁄ 8 5 3
L e n g th 1 1 11 ⁄ 8 11 ⁄ 4 11 ⁄ 8 11 ⁄ 4 13 ⁄ 8 13 ⁄ 8 11 ⁄ 2 11 ⁄ 2 11 ⁄ 2 13 ⁄ 4 15 ⁄ 8 15 ⁄ 8 17 ⁄ 8 17 ⁄ 8 17 ⁄ 8 17 ⁄ 8 17 ⁄ 8 17 ⁄ 8 21 ⁄ 4 21 ⁄ 4 21 ⁄ 4 21 ⁄ 2 23 ⁄ 4 23 ⁄ 4 23 ⁄ 4 3
` , , ` , ` , , ` , , ` ` , , , ` ` , ` , ` , ` ` , , , , ` ` , , ` ` ` , , , , , ` -
Permissible variation under specified width and length: 1 ⁄ 4 in. By agreement, these permitted variations may be taken all over, in which case the sum of these permitted variations applies. B Permissible variations in length apply also to Universal Mill plates up to 12 in. in width for thicknesses over 2 to 21 ⁄ 2 in., incl, except for alloy steel up to 2 in. thick.
TABLE A1.3 Permissible Variations in Rolled Width for Universal Mill Carbon Steel, High-Strength Low-Alloy Steel, and Alloy-Steel Plates 15 in. and under in Thickness
NOTE 1—Permis 1—Permissible sible variation under specifi specified ed width shall be 1 ⁄ 8 in. Variations Over Specified Width for Thicknesses Given, in. Specified Specifi ed Width, in.
Over 8 to 20, excl 20 to 36, excl 36 and over
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To 3 ⁄ 8 , excl ⁄ 8 16 ⁄ 16 5 16 ⁄ 16 1
3
⁄ 8 to 5 ⁄ 8, 5 ⁄ 8 to 1, 1 to 2, excl excl incl
3
⁄ 8 ⁄ 4 3 ⁄ 8
16 ⁄ 16 16 ⁄ 16 7 16 ⁄ 16
⁄ 4 ⁄ 8 1 ⁄ 2
1
3
1
1
5
3
Over 2 to 10, incl ⁄ 8 16 ⁄ 16 9 16 ⁄ 16 3
7
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Over 10 to 15, incl ⁄ 2 16 ⁄ 16 5 ⁄ 8 1
9
A20/A20M − 13 TABLE A1.4 Permissible Variations in Diameter for Sheared Circular Carbon Steel, High-Strength Low-Alloy Steel, and Alloy Steel Plates 1 in. and under in Thickness
NOTE 1—No permissible variations under specified diameter. Permissible Variations Over Specified Diameter for Thicknesses Thicknesses Given, in.
Specified Diameter, in.
⁄ 8 to 1, incl
5
To 3 ⁄ 8 , excl
To 32, excl 32 to 84, excl 84 to 108, excl 108 to 130, incl
⁄ 8 to 5 ⁄ 8, excl
3
⁄ 4 16 ⁄ 16 3 ⁄ 8 7 16 ⁄ 16
⁄ 8 16 ⁄ 16 1 ⁄ 2 9 16 ⁄ 16
1
⁄ 2 16 ⁄ 16 5 ⁄ 8 11 16 ⁄ 16
3
5
1
7
9
TABLE A1.5 Permissible Variations in Width and Length for Rectangular Carbon Steel and High-Strength Low-Alloy Steel Plates when Gas Cutting is Specified or Required
NOTE 1—These variations may be taken all under or divided over and under, if so specified. NOTE 2—Plates with universal rolled edges will be gas cut to length only. Variations Over for All Specified Widths or Lengths, in.
Specified Thickness, in. To 2, excl 2 to 4, excl 4 to 6, excl 6 to 8, excl 8 to 1 5 , i n c l
⁄ 2 ⁄ 8 3 ⁄ 4 7 ⁄ 8 1 1 5
TABLE A1.6 Permissible Variations in Diameter for Gas-Cut Circular Carbon Steel and High-Strength Low-Alloy Steel Plates
NOTE 1—No permissible variations under specified diameter Specified Diameter, in. To 32, excl 32 to 84, excl 84 to 108, excl 108 to 130, excl 130 and over
Variations Over Specified Diameter for Thicknesses Given, in. To 1, excl
1 to 2, excl
2 to 4, excl
⁄ 8 ⁄ 8 1 ⁄ 2 1 ⁄ 2 5 ⁄ 8
⁄ 8 ⁄ 2 9 16 ⁄ 16 9 16 ⁄ 16 3 ⁄ 4
⁄ 2 ⁄ 2 5 ⁄ 8 11 16 ⁄ 16 7 ⁄ 8
3 3
3 1
4 to 6, excl
6 to 8, excl
8 to 15, incl
⁄ 2 ⁄ 8 3 ⁄ 4 7 ⁄ 8 1
⁄ 8 ⁄ 4 7 ⁄ 8 1 11 ⁄ 8
⁄ 4 ⁄ 8 1 11 ⁄ 8 11 ⁄ 4
1
1
1
5
5 3
3 7
TABLE A1.7 Permissible Camber for Carbo Carbon n Steel Sheared or Gas-Cut Rectangular Plates all Thicknesses
NOTE 1—Camber, as it relates to plates, is the horizontal edge curvature in the len length gth,, mea measur sured ed over the entire entire len length gth of the plate in the flat position. Maximum permissible camber, in. = 1 ⁄ 8 in. × (number of feet of length/5)
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` , , ` , ` , , ` , , ` ` , , , ` ` , ` , ` , ` ` , , , , ` ` , , ` ` ` , , , , , ` -
A20/A20M − 13 TABLE A1.8 Permissible Camber for Carbon Steel, High-Strength Low-Alloy Steel, and Alloy Steel Universal Mill Plates and HighStrength Low-Alloy Steel and Alloy Steel Sheared or Gas-Cut Rectangular Plates Dimension, in. Thickness
Camber for Thickness and Widths Given
W i d th
To 2, incl Over Ov er 2 to 15 15,, in incl cl
al l to 30 30,, in incl cl
Over Ov er 2 to 15 15,, in incl cl
over ov er 30
⁄ 8 in. × (number of feet of length/5) 16 in. × (number of feet of ⁄ 16 length/5) 1 ⁄ 4 in. × (number of feet of length/5) 1 3
TABLE A1.9 Permissible Variations from Flatness for Carbon Steel Plates
NOTE 1—Flatness Variations for Length— The The longer dimension dimension speci specified fied is consi considered dered the length length,, and variation in flatness along the length shall not exceed the tabular amount for the specified width in plates up to 12 ft in length, or in any 12 ft of longer plates. NOTE 2— Flatness Variations for Width— The The flatness variation across the width shall not exceed the tabular amount for the specified width. NOTE 3—When the longer dimension is under 36 in., the variation in flatness along the length and across the width shall not exceed 1 ⁄ 4 in. in each direction. When the longer dimension is from 36 to 72 in., inclusive, the flatness variation shall not exceed 75 % of the tabular amount for the specified width, but in no case less than 1 ⁄ 4 in. NOTE 4—The tolerances given in this table apply to plates that have a minimum specified tensile strength not over 60 ksi or comparable chemistry or hardness. For plates specified to a higher minimum tensile strength or comparable chemistry or hardness, the limits given in the table are increased to 11 ⁄ 2 times the amounts in the above table. NOTE 5—This table and notes cover the flatness tolerances of circular and sketch plates, based on the maximum dimensions of those plates. NOTE 6—Plates shall be in a horizontal position on a flat surface when flatness is measured. Variations from a Flat Surface for Specified Widths, in. Specified Thickness, in. To 1 ⁄ 4 , excl 1 ⁄ 4 to 3 ⁄ 8, excl 3 ⁄ 8 to 1 ⁄ 2, excl 1 ⁄ 2 to 3 ⁄ 4, excl 3 ⁄ 4 to 1, excl 1 to 2, excl 2 to 4 excl 4 to 6, excl 6 to 8, excl 8 to 10 excl 10 to 12, excl 12 to 15, incl
Over 8 to 36, excl
36 to 48, excl
16 ⁄ 16 ⁄ 2 1 ⁄ 2 7 16 ⁄ 16 7 16 ⁄ 16 3 ⁄ 8 5 16 ⁄ 16 3 ⁄ 8 7 16 ⁄ 16 1 ⁄ 2 1 ⁄ 2 5 ⁄ 8
⁄ 4 ⁄ 8 9 16 ⁄ 16 1 ⁄ 2 1 ⁄ 2 1 ⁄ 2 3 ⁄ 8 7 16 ⁄ 16 1 ⁄ 2 1 ⁄ 2 5 ⁄ 8 3 ⁄ 4
9
1
48 to 60, excl 16 ⁄ 16 ⁄ 4 5 ⁄ 8 9 16 ⁄ 16 9 16 ⁄ 16 1 ⁄ 2 7 16 ⁄ 16 1 ⁄ 2 1 ⁄ 2 5 ⁄ 8 3 ⁄ 4 13 16 ⁄ 16
3
15
5
3
60 to 72, excl
72 to 84, excl
84 to 96, excl
11 ⁄ 4 16 ⁄ 16 5 ⁄ 8 5 ⁄ 8 5 ⁄ 8 9 16 ⁄ 16 1 ⁄ 2 1 ⁄ 2 5 ⁄ 8 11 16 ⁄ 16 13 16 ⁄ 16 7 ⁄ 8
13 ⁄ 8 11 ⁄ 8 3 ⁄ 4 5 ⁄ 8 5 ⁄ 8 9 16 ⁄ 16 1 ⁄ 2 9 16 ⁄ 16 11 16 ⁄ 16 3 ⁄ 4 7 ⁄ 8 15 16 ⁄ 16
11 ⁄ 2 11 ⁄ 4 7 ⁄ 8 3 ⁄ 4 5 ⁄ 8 5 ⁄ 8 1 ⁄ 2 9 16 ⁄ 16 3 ⁄ 4 13 16 ⁄ 16 15 16 ⁄ 16 1
15
96 to 108, 108 to 120, 120 to 144, 144 to 168, 168 and excl excl excl excl over
15 ⁄ 8 13 ⁄ 8 1 1 3 ⁄ 4 5 ⁄ 8 1 ⁄ 2 5 ⁄ 8 7 ⁄ 8 7 ⁄ 8 1 1
13 ⁄ 4 11 ⁄ 2 11 ⁄ 8 1 7 ⁄ 8 5 ⁄ 8 9 16 ⁄ 16 3 ⁄ 4 7 ⁄ 8 15 16 ⁄ 16 1 1
TABLE A1.10 Permissible Variations in Width and Length for Rectangular Alloy Steel Plates when Gas Cutting is Specified or Required
NOTE 1—These variations may be taken all under or divided over and under, if so specified. NOTE 2— Plates with universal rolled edges will be gas cut to length only. Spec Sp ecifi ified ed Th Thic ickn knes ess, s, in in..
Var aria iati tion ons s Ov Over er fo forr Al Alll Spe Speci cifie fied d Widths and Lengths, in.
To 2, excl 2 t o 4 , ex c l 4 t o 6 , ex c l 6 t o 8 , ex c l 8 t o 1 5 , i nc l
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⁄ 4 1 11 ⁄ 8 16 15 ⁄ 16 11 ⁄ 2 3
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17 ⁄ 8 15 ⁄ 8 11 ⁄ 4 11 ⁄ 8 1 11 16 ⁄ 16 5 ⁄ 8 7 ⁄ 8 1 1 1 1
..... . .. .. 17 ⁄ 8 11 ⁄ 2 13 ⁄ 8 11 ⁄ 8 7 ⁄ 8 7 ⁄ 8 1 1 1 1
.. . .. . 21 ⁄ 8 2 13 ⁄ 4 11 ⁄ 2 11 ⁄ 8 1 1 1 1 .. .
` , , ` , ` , , ` , , ` ` , , , ` ` , ` , ` , ` ` , , , , ` ` , , ` ` ` , , , , , ` -
A20/A20M − 13 TABLE A1.11 Permissible Variations in Diameter for Gas-Cut Circular Circu lar Alloy Steel Plates
NOTE 1—No permissible variations under specified diameter. Variations Over Specified Diameter for Thicknesses Given, in. Specified Diameter, in.
To 1, excl
To 32, excl 32 to 84, excl 84 to 108, excl 108 to 130, incl
1 to 2, excl
2 to 4, excl
4 to 6, excl
6 to 8, excl
8 to 15 incl
⁄ 4 ⁄ 8 3 ⁄ 4 1
⁄ 4 ⁄ 8 1 11 ⁄ 8
⁄ 4 1 11 ⁄ 8 11 ⁄ 4
1 11 ⁄ 8 11 ⁄ 4 13 ⁄ 8
1 11 ⁄ 4 13 ⁄ 8 11 ⁄ 2
⁄ 2 ⁄ 2 5 ⁄ 8 7 ⁄ 8 1
3
1
5
3 7
3
TABLE A1.12 Permissible Variations from Flatness for High-Strength Low-Alloy Steel and Alloy Steel Plates
NOTE 1—Flatness Tolerances for Length— The The longer dimension dimension speci specified fied is consi considered dered the length and variations from a flat surface along the length shall not exceed the tabular amount for the specified width in plates up to 12 ft in length, or in any 12 ft of longer plates. NOTE 2— Flatness Tolerances for Width— The The flatness variation across the width shall not exceed the tabular amount for the specified width. NOTE 3—When the longer dimension is under 36 in., the variation shall not exceed 3 ⁄ 8 in. When the larger dimension is from 36 to 72 in., incl, the variation shall not exceed 75 % of the tabular amount for the specified width. NOTE 4—This table and notes cover the tolerances for flatness of circular and sketch plates, based on the maximum dimensions of those plates. NOTE 5—Plates shall be in a horizontal position on a flat surface when flatness is measured. Variations from a Flat Surface for Specified Widths, in. Specified Thickness, in. To 1 ⁄ 4 , excl 1 ⁄ 4 to 3 ⁄ 8, excl 3 ⁄ 8 to 1 ⁄ 2, excl 1 ⁄ 2 to 3 ⁄ 4, excl 3 ⁄ 4 to 1, excl 1 to 2, excl 2 to 4, excl 4 to 6, excl 6 to 8, excl 8 to 10, excl 10 to 12, excl 12 to 15, incl
Over 8 to 36, excl
36 to 48, excl
48 to 60, excl
60 to 72, excl
72 to 84, excl
84 to 96, excl
96 to 108, excl
108 to 120, excl
11 ⁄ 8 16 ⁄ 16 7 ⁄ 8 3 ⁄ 4 3 ⁄ 4 5 ⁄ 8 9 16 ⁄ 16 11 16 ⁄ 16 3 ⁄ 4 13 16 ⁄ 16 15 16 ⁄ 16 1
13 ⁄ 8 11 ⁄ 8 15 16 ⁄ 16 13 16 ⁄ 16 7 ⁄ 8 3 ⁄ 4 11 16 ⁄ 16 3 ⁄ 4 3 ⁄ 4 15 16 ⁄ 16 11 ⁄ 8 16 13 ⁄ 16
17 ⁄ 8 13 ⁄ 8 15 16 ⁄ 16 7 ⁄ 8 7 ⁄ 8 13 16 ⁄ 16 3 ⁄ 4 3 ⁄ 4 15 16 ⁄ 16 1 11 ⁄ 4 16 15 ⁄ 16
2 13 ⁄ 4 11 ⁄ 8 1 15 16 ⁄ 16 7 ⁄ 8 3 ⁄ 4 7 ⁄ 8 1 11 ⁄ 8 16 15 ⁄ 16 13 ⁄ 8
21 ⁄ 4 17 ⁄ 8 16 15 ⁄ 16 11 ⁄ 8 1 15 16 ⁄ 16 3 ⁄ 4 7 ⁄ 8 11 ⁄ 8 11 ⁄ 4 13 ⁄ 8 11 ⁄ 2
23 ⁄ 8 2 11 ⁄ 2 11 ⁄ 4 11 ⁄ 8 1 3 ⁄ 4 15 16 ⁄ 16 11 ⁄ 4 16 15 ⁄ 16 11 ⁄ 2 11 ⁄ 2
25 ⁄ 8 21 ⁄ 4 15 ⁄ 8 13 ⁄ 8 16 15 ⁄ 16 1 7 ⁄ 8 11 ⁄ 8 16 15 ⁄ 16 13 ⁄ 8 11 ⁄ 2 11 ⁄ 2
16 ⁄ 16 ⁄ 4 3 ⁄ 4 5 ⁄ 8 5 ⁄ 8 9 16 ⁄ 16 1 ⁄ 2 9 16 ⁄ 16 5 ⁄ 8 3 ⁄ 4 3 ⁄ 4 7 ⁄ 8
13 3
15
` , , , , , ` ` ` , , ` ` , , , , ` ` , ` , ` , ` ` , , , ` ` , , ` , , ` , ` , , ` -
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120 to 144, excl 23 ⁄ 4 23 ⁄ 8 17 ⁄ 8 15 ⁄ 8 11 ⁄ 2 1 1 11 ⁄ 4 11 ⁄ 2 11 ⁄ 2 11 ⁄ 2 11 ⁄ 2
144 to 168, excl
..... ..... 23 ⁄ 4 21 ⁄ 4 2 15 ⁄ 8 11 ⁄ 4 11 ⁄ 4 11 ⁄ 2 11 ⁄ 2 11 ⁄ 2 11 ⁄ 2
168 and Over . .. . .. 31 ⁄ 8 3 25 ⁄ 8 2 1 ⁄ 4 15 ⁄ 8 11 ⁄ 2 11 ⁄ 2 11 ⁄ 2 11 ⁄ 2 11 ⁄ 2
A20/A20M − 13 TABLE A1.13 Waviness Tolerances Tolerances for Rectangular Rectangular Plates, Universal Mill Plates, Circular Plates, and Sketch Plates
NOTE 1—Waviness denotes the deviation of the top or bottom surface from a horizontal line, when the plate is resting on a flat surface, as measured in an increment of less than 12 ft of length. The waviness tolerance is a function of the flatness tolerance as obtained from Tables A1.9 and A1.12. Flatness Tolerance from Tables A1.9 and A1.12
When Number of Waves in 12 ft is: 1
16 ⁄ 16 ⁄ 8 7 16 ⁄ 16 1 ⁄ 2 9 16 ⁄ 16 5 ⁄ 8 11 16 ⁄ 16 3 ⁄ 4 13 16 ⁄ 16 7 ⁄ 8 15 16 ⁄ 16 1 11 ⁄ 8 11 ⁄ 4 13 ⁄ 8 11 ⁄ 2 15 ⁄ 8 13 ⁄ 4 17 ⁄ 8 2 21 ⁄ 8 21 ⁄ 4 23 ⁄ 8 21 ⁄ 2 25 ⁄ 8 23 ⁄ 4 27 ⁄ 8 3 31 ⁄ 8
16 ⁄ 16 3 ⁄ 8 7 16 ⁄ 16 1 ⁄ 2 9 16 ⁄ 16 5 ⁄ 8 11 16 ⁄ 16 3 ⁄ 4 13 16 ⁄ 16 7 ⁄ 8 15 16 ⁄ 16 1 11 ⁄ 8 11 ⁄ 4 13 ⁄ 8 11 ⁄ 2 15 ⁄ 8 13 ⁄ 4 17 ⁄ 8 2 21 ⁄ 8 21 ⁄ 4 23 ⁄ 8 21 ⁄ 2 25 ⁄ 8 23 ⁄ 4 27 ⁄ 8 3 31 ⁄ 8
5
3
⁄ 4 16 ⁄ 16 5 16 ⁄ 16 3 ⁄ 8 7 16 ⁄ 16 1 ⁄ 2 1 ⁄ 2 9 16 ⁄ 16 5 ⁄ 8 11 16 ⁄ 16 11 16 ⁄ 16 3 ⁄ 4 7 ⁄ 8 15 16 ⁄ 16 16 11 ⁄ 16 11 ⁄ 8 11 ⁄ 4 16 15 ⁄ 16 16 17 ⁄ 16 11 ⁄ 2 15 ⁄ 8 16 111 ⁄ 16 16 113 ⁄ 16 17 ⁄ 8 2 16 21 ⁄ 16 16 23 ⁄ 16 21 ⁄ 4 23 ⁄ 8
5
3
` , , , , , ` ` ` , , ` ` , , , , ` ` , ` , ` , ` ` , , , ` ` , , ` , , ` , ` , , ` -
2
16 ⁄ 16 16 ⁄ 16 1 ⁄ 4 5 16 ⁄ 16 5 16 ⁄ 16 3 ⁄ 8 3 ⁄ 8 7 16 ⁄ 16 7 16 ⁄ 16 1 ⁄ 2 1 ⁄ 2 9 16 ⁄ 16 5 ⁄ 8 11 16 ⁄ 16 3 ⁄ 4 7 ⁄ 8 15 16 ⁄ 16 1 16 11 ⁄ 16 11 ⁄ 8 16 13 ⁄ 16 11 ⁄ 4 16 1 5 ⁄ 16 16 17 ⁄ 16 11 ⁄ 2 16 19 ⁄ 16 15 ⁄ 8 16 111 ⁄ 16 13 ⁄ 4
1
3
5
4
5
6
7
⁄ 8 16 ⁄ 16 3 16 ⁄ 16 3 16 ⁄ 16 1 ⁄ 4 1 ⁄ 4 5 16 ⁄ 16 5 16 ⁄ 16 5 16 ⁄ 16 3 ⁄ 8 3 ⁄ 8 7 16 ⁄ 16 1 ⁄ 2 1 ⁄ 2 9 16 ⁄ 16 5 ⁄ 8 11 16 ⁄ 16 3 ⁄ 4 13 16 ⁄ 16 7 ⁄ 8 7 ⁄ 8 15 16 ⁄ 16 1 16 11 ⁄ 16 11 ⁄ 8 11 ⁄ 8 16 13 ⁄ 16 11 ⁄ 4 16 15 ⁄ 16
⁄ 8 ⁄ 8 1 ⁄ 8 3 16 ⁄ 16 3 16 ⁄ 16 3 16 ⁄ 16 3 16 ⁄ 16 1 ⁄ 4 1 ⁄ 4 1 ⁄ 4 5 16 ⁄ 16 5 16 ⁄ 16 3 ⁄ 8 3 ⁄ 8 7 16 ⁄ 16 1 ⁄ 2 1 ⁄ 2 9 16 ⁄ 16 9 16 ⁄ 16 5 ⁄ 8 11 16 ⁄ 16 11 16 ⁄ 16 3 ⁄ 4 13 16 ⁄ 16 13 16 ⁄ 16 7 ⁄ 8 15 16 ⁄ 16 15 16 ⁄ 16 1
1
16 ⁄ 16 16 ⁄ 16 1 ⁄ 8 1 ⁄ 8 1 ⁄ 8 1 ⁄ 8 3 16 ⁄ 16 3 16 ⁄ 16 3 16 ⁄ 16 3 16 ⁄ 16 1 ⁄ 4 1 ⁄ 4 1 ⁄ 4 5 16 ⁄ 16 5 16 ⁄ 16 3 ⁄ 8 3 ⁄ 8 7 16 ⁄ 16 7 16 ⁄ 16 1 ⁄ 2 1 ⁄ 2 9 16 ⁄ 16 9 16 ⁄ 16 9 16 ⁄ 16 5 ⁄ 8 5 ⁄ 8 11 16 ⁄ 16 11 16 ⁄ 16 3 ⁄ 4
1
1
1
1
3
3
1
1
16 ⁄ 16 16 ⁄ 16 1 16 ⁄ 16 1 16 ⁄ 16 1 ⁄ 8 1 ⁄ 8 1 ⁄ 8 1 ⁄ 8 1 ⁄ 8 1 ⁄ 8 3 16 ⁄ 16 3 16 ⁄ 16 3 16 ⁄ 16 1 ⁄ 4 1 ⁄ 4 1 ⁄ 4 5 16 ⁄ 16 5 16 ⁄ 16 5 16 ⁄ 16 3 ⁄ 8 3 ⁄ 8 3 ⁄ 8 7 16 ⁄ 16 7 16 ⁄ 16 7 16 ⁄ 16 1 ⁄ 2 1 ⁄ 2 9 16 ⁄ 16 9 16 ⁄ 16
TABLE A1.14 Visible Edge Indications Extending Approximately Parallel to Rolled Surfaces A c c e p ta b l e
Plate Specification and Thickness Column Other than killed killed,,B to 2 in., incl C Killed, to 6 in., incl Killed,C over 6 in.
Remove by Grinding
Depth
LengthA
1 ⁄ 8 in. max 1 16 in. max ⁄ 16 1 ⁄ 8 in. max
2 a ny a ny a ny
1
Depth 3 over 1 ⁄ 8 in. to 1 ⁄ 4 in., incl 1 16 in. to ⁄ 8 in., incl over 1 ⁄ 16 1 1 over ⁄ 8 in. to ⁄ 2 in., incl
A
Laminar-type discontinuiti Laminar-type discontinuities es 1 in. and less in length are acceptable and do not requir require e explor exploration. ation. Specifications: A285; A433; A442 in thicknesses to 1 in., incl; or A455. C The specification in 1.1 of this standard, other than those listed in the above Footnote B Footnote B . B
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A c c e p ta b l e o n E d g e s Cut in Fabric Fabrication ation LengthA 4 ov e r 1 i n . ov e r 1 i n . ov e r 1 i n .
Depth
LengthA
5 ⁄ 4 in. max 1 ⁄ 8 in. max 1 ⁄ 2 in. max
6 an y an y an y
1
A20/A20M − 13 TABLE A1.15 Generally Available Grade-Thickness-Minimum Test Temperature Combinations Meeting Charpy V-Notch Requirements Indicated (Normalized or Quenched and Tempered Condition)
NOTE 1—The minimum temperatures listed are for longitudinal tests. For transverse tests, the available minimum temperature may be somewhat higher. Test Temperature, °F for Plate Thicknesses (Unless Otherwise Agreed Upon)
Acceptance Criteria Charpy V-Notch Energy Absorption
I
MinimumAverage For 3 SpecimensC ft·lbf 10
II II I
13 13
ClassB
Specification and GradeA Minimum For 1 Specim Specimen enC ft·lbf 7
10 10
IV
15
12
V
20
15
1 in. and Under
A285 Grade A A285 Grade B A285 Grade C A455 A4 A203 Grade A A203 Grade D A442 Grade 55 (11 ⁄ 2 in. max thickness A442 Grade 60 (11 ⁄ 2 in. max thickness) A516 Grade 55 A516 Grade 60 A516 Grade 65 A537 Class 1 (Over 21 ⁄ 2 –4 in.) A662 Grade A A662 Grade B A203 Grade B A203 Grade E A203 Grade F (4 in. max) A 2 99 A516 Grade 70 A537 Class 1 (21 ⁄ 2 in. max) A537 Class 2 (Over 21 ⁄ 2 –4 in.) A662 Grade C A203 Grade F A537 Class 2 (21 ⁄ 2 in. max) A 6 12 A724 Grade A
Over 1 in. to to 2 in., Over 2 in. to 3 in., Over 3 in. to 5 in., incl. incl. incl.
+40 +50 +60 +25 −90 −150 ... ... −60 −60 −60 ...
+60 +70 +80 ... −90 −150 −20 −15 −60 −50 −50 ...
... ... ... ... − 75 − 12 5 ... ... − 50 − 50 − 40 − 75
... ... ... ... ... ... ... ... − 50 − 50 − 25 − 50
−75 −60 −90 −150 ... +20 −50 −80 ...
−75 −60 −90 −150 ... +30 −40 −75 ...
... ... − 75 − 12 5 − 16 0 + 30 − 30 − 75 − 75
... ... ... ... − 16 0 + 40 − 20 ... − 50
−50 −160 −90 −50 −50
−50 −160 −90 ... ...
... ... − 90 ... ...
... ... ... ... ...
Lateral Expansion Mils. Minimum Each Specimen Transverse Test VI
15
A3 5 3 A553 Type I A553 Type II A 6 45 A517 all (21 ⁄ 2 in. max thickness) A724 Grade B
−320 −320 −275 −275
−320 −320 −275 −275
A
A
−50
...
A
Testing temperature as specified in the purchase order, but no higher than 32°F. Class I is Other is Other Than Killed with with a specified minimum tensile strength of 65 ksi or lower. Class II is Other is Other Than Killed with with a specified minimum tensile strength of over 65 ksi to 75 ksi. Class III is Killed is Killed with with a specified minimum tensile strength of 65 ksi or lower. Class IV is Killed is Killed with with a specified minimum tensile strength of over 65 ksi to 75 ksi. Class V is Killed is Killed with with a specified minimum tensile strength of over 75 ksi to but not including 95 ksi. Class VI is Killed is Killed with with a specified minimum tensile strength of 95 ksi or over. C Full size (10 by 10 mm) specimens. B
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... ... ... ... ... ...
... ... ... ... ... ...
` , , ` , ` , , ` , , ` ` , , , ` ` , ` , ` , ` ` , , , , ` ` , , ` ` ` , , , , , ` -
A20/A20M − 13 TABLE A1.16 Charpy V-Notch Test Acceptance Criteria for Various Subsize Specimens A Full Size, 10 by 10 mm
⁄ 4 Size, 10 by 7.5 mm
3
⁄ 3 Size, 10 by 6.7 mm
⁄ 2 Size, 10 by 5 mm
2
1
⁄ 3 Size, 10 by 3.3 mm
1
⁄ 4 Size, 10 by 2.5 mm
1
ft ·l b f
[J ]
f t·l b f
[J ]
ft· l b f
[J ]
ft· l b f
[J ]
f t·l b f
[J ]
f t·l b f
[J ]
40 35 30 25 20 16 15 13 12 10 7
[ 54 ] [ 48 ] [ 41 ] [ 34 ] [ 27 ] [ 22 ] [ 20 ] [ 18 ] [ 16 ] [ 14 ] [1 0 ]
30 26 22 19 15 12 11 10 9 8 5
[ 41 ] [ 35 ] [ 30 ] [ 26 ] [ 20 ] [ 16 ] [ 15 ] [ 14 ] [ 12 ] [11] [7 ]
27 23 20 17 13 11 10 9 8 7 5
[3 7 ] [3 1 ] [2 7 ] [2 3 ] [1 8 ] [1 5 ] [1 4 ] [1 2 ] [11] [ 10 ] [7 ]
20 18 15 12 10 8 8 6 6 5 4
[2 7 ] [2 4 ] [2 0 ] [1 6 ] [1 4 ] [11] [11] [8 ] [ 8] [ 7] [5 ]
13 12 10 8 7 5 5 4 4 3 2
[ 18 ] [ 16 ] [ 14 ] [11] [ 10 ] [7 ] [7 ] [5 ] [ 5] [ 4] [ 3]
10 9 8 6 5 4 4 3 3 2 2
[ 14 ] [1 2 ] [11] [8 ] [7 ] [ 5] [ 5] [4 ] [ 4] [ 3] [3 ]
A
Interpolation shall be made for specimens with widths intermediate of those listed. Interpolated values shall be rounded to the nearest whole number as prescribed in Practice E29.. Practice E29
TABLE A1.17 Permissible Variations in Width for Mill Edge Carbon Steel and HighCarbon High-Stren Strength gth Low-Alloy Steel Plates Produced on Strip Mills
NOTE 1—Applies 1—Applies to plates produced produced from coil and plates produ produced ced from plate-as-rolled.
A
S p e c i fi e d W i d th , i n .
Variations over SpecifiedWidth, inA
To 14, excl 14 to 17, excl 17 to 19, excl 19 to 21, excl 21 to 24, excl 24 to 26, excl 26 to 28, excl 2 8 to 3 5 , e x c l 3 5 to 5 0 , e x c l 5 0 to 6 0 , e x c l 6 0 to 6 5 , e x c l 6 5 to 7 0 , e x c l 7 0 to 8 0 , e x c l 80 and ov er
16 ⁄ 16 1 ⁄ 2 9 16 ⁄ 16 5 ⁄ 8 11 16 ⁄ 16 13 16 ⁄ 16 15 16 ⁄ 16 11 ⁄ 8 11 ⁄ 4 11 ⁄ 2 15 ⁄ 8 13 ⁄ 4 17 ⁄ 8 2 7
No permis permissible sible variation under specified width.
A2. PERMISSIBLE VARIA VARIATIONS TIONS IN DIMENSIONS, ETC.—SI UNITS
A2.1 Listed herein are permissible variations in dimensions, and notch toughness information, expressed in SI units.
--`,,,,,```,,``,,,,``,`,`,``,,,-`-`,,`,,`,`,,`---
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A20/A20M − 13 TABLE A2.1 Permissible Variations in Thickness for Rectangular Plates
NOTE 1—Permissible variation under specified thickness, 0.3 mm. NOTE 2—Thickness shall be measured 10 to 20 mm from the longitudinal edge. NOTE 3—For specified thicknesses other than those shown, the tolerances for the next higher thickness shall apply. NOTE 4—For thickness measured at any location other than that specified in Note in Note 2, 2, the permissible maximum over tolerance shall be increased by 75 %, rounded to the nearest 0.1 mm. Specified Thickness, mm
` , , , , , ` ` ` , , ` ` , , , , ` ` , ` , ` , ` ` , , , ` ` , , ` , , ` , ` , , ` -
5 .0 5 .5 6 .0 7 .0 8 .0 9 .0 1 0 .0 11.0 1 2 .0 1 4 .0 1 6 .0 1 8 .0 2 0 .0 2 2 .0 2 5 .0 2 8 .0 3 0 .0 3 2 .0 3 5 .0 3 8 .0 4 0 .0 4 5 .0 5 0 .0 5 5 .0 6 0 .0 7 0 .0 8 0 .0 9 0 .0 1 0 0. 0 110.0 1 2 0. 0 1 3 0. 0 1 4 0. 0 1 5 0. 0 1 6 0. 0 1 8 0. 0 2 0 0. 0 2 5 0. 0 3 0 0. 0
Tolerance Over Specified Thickness for Widths Given in Millimetres, mm 1200 and Over 1200 to Under 1500, excl 0. 8 0. 8 0. 8 0. 8 0. 8 0. 8 0 .8 0 .8 0 .8 0 .8 0 .8 0 .8 0 .8 0 .8 0 .9 1 .0 1 .1 1 .2 1 .3 1 .4 1 .5 1 .6 1 .8 2 .0 2 .3 2 .5 2 .8 3 .0 3 .3 3 .5 3 .8 4 .0 4 .3 4 .5 4 .8 5 .4 5 .8 7 .5 7 .5
0 .8 0 .8 0 .8 0 .8 0 .8 0 .8 0. 8 0. 8 0. 8 0. 8 0. 8 0. 8 0. 8 0. 9 0. 9 1. 0 1. 1 1. 2 1. 3 1. 4 1. 5 1. 6 1. 8 2. 0 2. 3 2. 5 2. 8 3. 0 3. 3 3. 5 3. 8 4. 0 4. 3 4. 5 4. 8 5. 4 5. 8 7. 5 7. 5
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1500 to 1800, excl
1800 to 2100, excl
2100 to 2400, excl
2400 to 2700, excl
2700 to 3000, excl
3000 to 3300, excl
3300 to 3600, excl
3600 to 4200, excl
0. 8 0. 8 0. 8 0. 8 0. 8 0. 8 0 .8 0 .8 0 .8 0 .8 0 .8 0 .8 0 .8 0 .9 1 .0 1 .1 1 .2 1 .3 1 .4 1 .5 1 .6 1 .7 1 .8 2 .0 2 .3 2 .5 2 .8 3 .0 3 .3 3 .5 3 .8 4 .0 4 .3 4 .5 4 .8 5 .4 6 .0 7 .5 9 .0
0 .8 0 .8 0 .8 0 .8 0 .8 0 .8 0. 8 0. 8 0. 8 0. 8 0. 8 0. 8 0. 8 0. 9 1. 0 1. 1 1. 2 1. 3 1. 4 1. 5 1. 6 1. 8 2. 0 2. 2 2. 4 2. 6 2. 8 3. 0 3. 3 3. 5 3. 8 4. 0 4. 3 4. 5 4. 8 5. 4 6. 0 7. 5 9. 0
0 .8 0 .8 0 .8 0 .8 0 .8 0 .8 0. 8 0. 8 0. 8 0. 9 0. 9 0. 9 0. 9 1. 0 1. 0 1. 1 1. 2 1. 3 1. 4 1. 5 1. 6 1. 8 2. 0 2. 2 2. 4 2. 6 2. 8 3. 0 3 .5 3 .5 3 .8 4 .0 4 .3 4 .5 4 .8 5 .4 6 .0 7 .5 9 .0
0 .8 0 .8 0 .8 0 .8 0 .8 0 .8 0 .8 0 .8 0 .9 0 .9 0 .9 1 .0 1 .0 1 .1 1 .2 1 .3 1 .4 1 .5 1 .6 1 .7 1 .8 2 .0 2 .3 2 .5 2 .8 3 .0 3 .3 3 .5 3 .8 3 .8 3 .8 4 .0 4 .3 4 .5 4 .8 5 .4 6 .0 7 .5 9 .0
0 .8 0 .8 0 .9 0 .9 0 .9 1 .0 1. 0 1. 0 1. 0 1. 0 1. 0 1. 1 1. 2 1. 3 1. 3 1. 4 1. 5 1. 6 1. 7 1. 8 2. 0 2. 3 2. 5 2. 8 3. 0 3. 3 3. 5 3. 5 3 .8 3 .8 3 .8 4 .0 4 .3 4 .5 4 .8 5 .4 6 .0 7 .5 9 .0
0 .9 0 .9 1 .0 1 .0 1 .0 1 .0 1 .0 1 .0 1 .0 1 .1 1 .1 1 .2 1 .2 1 .3 1 .5 1 .8 1 .8 2 .0 2 .3 2 .3 2 .5 2 .8 3 .0 3 .3 3 .4 3 .5 3 .5 3 .5 3 .8 3 .8 3 .8 4 .0 4 .3 4 .5 4 .8 5 .4 6 .0 7 .5 9 .0
1 .0 1 .0 1 .1 1 .2 1 .2 1 .3 1 .3 1 .3 1 .3 1 .3 1 .3 1 .4 1 .4 1 .5 1 .5 1 .8 1 .8 2 .0 2 .3 2 .3 2 .5 2 .8 3 .0 3 .3 3 .4 3 .6 3 .6 3 .6 3 .8 3 .8 3 .8 4 .0 4 .3 4 .5 4 .8 5 .4 6 .0 7 .5 9 .0
1 .4 1 .4 1 .5 1 .5 1 .5 1 .5 1 .5 1 .5 1 .6 1 .6 1 .8 1 .8 2 .0 2 .1 2 .3 2 .5 2 .7 2 .8 3 .0 3 .3 3 .5 3 .8 4 .0 4 .0 4 .0 4 .4 4 .4 4 .8 5 .2 5 .6 5 .6 5 .6 6 .3 7 .0 7 .5 9 .0
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4200 and Over
1 .7 1 .7 1 .8 1 .8 1 .8 2 .0 2 .0 2 .0 2 .2 2 .2 2 .4 2 .6 2 .8 3 .0 3 .3 3 .5 3 .8 3 .8 4 .0 4 .0 4 .0 4 .4 4. 4 4. 4 4. 8 5. 2 5. 6 5. 6 5. 6 6. 3 7. 0 8. 8 9. 0
A20/A20M − 13 TABLE A2.2 Permissible Variations in Width and Length for Sheared Plates 40 mm and Under in Thickness; Length only for Universal Mill Plates 65 mm and Under in Thickness Permissible Variations over Specified Width and LengthA for Thicknesses Given in millimetres, mm
Specified Dimensions, mm L e n g th
Width
To 10, excl
1 0 t o 1 6, e x c l
1 6 to 2 5 , e x c l
25 to 50, incB l
W i dt h
Le n gt h
Width
L e n g th
W i d th
Le n gt h
W i d th
L e n g th
To 3 000 excl
to 1 5 0 0 e x c l 1 5 0 0 to 2 1 0 0 e x c l 2 1 0 0 to 2 7 0 0 e x c l 2 7 00 a nd o v er
10 11 13 16
13 16 19 22
11 13 16 19
16 17 22 25
13 16 19 22
19 22 25 29
16 19 25 29
25 25 29 32
3 0 0 0 t o 6 00 0 ex c l
t o 1 5 00 e x c l 1 5 0 0 to 2 1 0 0 e x c l 2 1 0 0 to 2 7 0 0 e x c l 2 7 00 a nd o v er
10 13 14 16
19 19 22 25
13 16 17 19
22 22 24 29
16 19 21 22
25 25 29 32
19 22 25 29
29 32 35 35
6 0 0 0 t o 9 00 0 ex c l
t o 1 5 00 e x c l 1 5 0 0 to 2 1 0 0 e x c l 2 1 0 0 to 2 7 0 0 e x c l 2 7 00 a nd o v er
10 13 14 17
25 25 25 29
13 16 17 22
29 29 32 32
16 19 22 25
32 32 35 35
19 22 25 32
38 38 38 44
9 0 0 0 t o 1 2 0 00 e x c l
to 1 5 0 0 e x c l 1 5 0 0 to 2 1 0 0 e x c l 2 1 0 0 to 2 7 0 0 e x c l 2 7 00 a nd o v er
11 13 14 19
29 32 32 35
13 16 19 22
32 35 35 38
16 19 22 25
35 38 38 41
19 22 25 32
41 41 48 48
1 2 0 0 0 to 1 5 00 0 e x c l
t o 1 50 0 ex c l 1 5 0 0 to 2 1 0 0 e x c l 2 1 0 0 to 2 7 0 0 e x c l 2 7 00 a nd o v er
11 13 16 19
32 35 35 38
13 16 19 22
38 38 38 41
16 19 22 25
41 41 41 44
19 22 25 32
48 48 48 48
1 5 0 0 0 to 1 8 00 0 e x c l
t o 1 50 0 ex c l 1 5 0 0 to 2 1 0 0 e x c l 2 1 0 0 to 2 7 0 0 e x c l 2 7 00 a nd o v er
13 16 16 22
44 44 44 44
16 19 19 25
48 48 48 51
19 22 22 29
48 48 48 57
22 25 29 32
57 57 57 64
1 8 0 0 0 a n d ov e r
to 1 5 0 0 e x c l 1 5 0 0 to 2 1 0 0 e x c l 2 1 0 0 to 2 7 0 0 e x c l 2 7 00 a nd o v er
14 19 19 25
51 51 51 51
19 22 22 29
54 54 54 60
22 25 25 32
57 57 57 64
25 29 32 35
70 70 70 76
A
Permissible variation under specified width and length: 6 mm. By agreement, these permitted variations may be taken all over, in which case the sum of these permitted variations applies. B Permissible variations in length apply also to Universal Mill plates up to 300 mm in width for thicknesses over 50 to 65 mm, incl, except for alloy steel up to 50 mm thick.
TABLE A2.3 Permissible Variations in Rolled Width for Universal Mill Carbon Steel, High-Strength High-Strength Low-Alloy Low-Alloy Steel Plates, and Alloy Steel Plates 400 mm and under in Thickness ` , , , , , ` ` ` , , ` ` , , , , ` ` , ` , ` , ` ` , , , ` ` , , ` , , ` , ` , , ` -
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NOTE 1—Permissible variation under specified width shall be 3 mm. Variatio Va riations ns Over Specified Width for Thickness Given, mm Specified Width, mm
Over 200 to 500, excl 5 0 0 t o 90 0 , e x c l 9 0 0 a n d ov e r
To 10, excl
10 to 16, excl
16 to 25, excl
25 to 50, excl
Over 50 to 250, incl
Over 250 to 400, incl
3
3
5
6
10
13
5 8
6 10
8 11
10 13
11 14
14 16
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A20/A20M − 13 TABLE A2.4 Permissible Variations in Diameter for Sheared Circular Carbon Steel, High-Strength Low-Alloy Steel, and Alloy Steel Plates 25 mm and under in Thickness
NOTE 1—No permissible variations under specified diameter. Permissible Variations Over Specified Diameter for Thicknesses Thicknesses Given, mm
Specified Diameters, mm
To 10, excl
10 to 16, excl
16 to 25, incl
6 8 10 11 13
10 11 13 14 16
13 14 16 17 19
To 800, excl 8 0 0 to 2 1 0 0 , e x c l 2 1 00 t o 27 00 , ex c l 2 7 00 t o 33 00 , ex c l 3 3 00 a n d ov er
` , , , , , ` ` ` , , ` ` , , , , ` ` , ` , ` , ` ` , , , ` ` , , ` , , ` , ` , , ` -
TABLE A2.5 Permissible Variations in Width and Length for Rectangular Carbon Steel and High-Strength Low-Alloy Steel Plates when Gas Cutting is Specified or Required
NOTE 1—These variations may be taken all under or divided over and under, if so specified. NOTE 2—Plates with universal rolled edges will be gas cut to length only. Spec Sp ecifi ified ed Th Thic ickn knes ess, s, mm
Var aria iati tion ons s Ov Over er fo forr Al Alll Sp Spec ecifi ified ed Widths or Lengths, mm
To 50, excl 5 0 to 1 0 0 , e x c l 1 00 t o 15 0 , e x c l 1 50 t o 20 0 , e x c l 2 00 t o 40 0 , i n c l
13 16 19 22 25
TABLE A2.6 Permissible Variations in Diameter for Gas-Cut Circular Carbon Steel and High-Strength Low-Alloy Steel Plates
NOTE 1—No permissible variations under specified diameter. Specified Diameters, mm
To 800, excl 8 0 0 to 2 1 0 0 , excl 2 1 00 t o 27 0 0, excl 2 7 00 t o 33 0 0, excl 3 3 00 a n d ov er
Variations Over Specified Diameter for Thicknesses Given, mm 200 to 100 to 150 to 400, 150, 200, excl excl excl
To 25, excl
25 to 50, excl
50 to 100, excl
10 10
10 13
13 13
13 16
16 19
19 19 22 2 2
13
14
16
19
22
25
13
14
17
22
25
29
16
19
22
25
29
32
TABLE A2.7 Permissible Camber for Carbo Carbon n Steel Sheared or Gas-Cut Rectangular Plates all Thicknesses
NOTE 1—Camber, as it relates to plates, is the horizontal edge curvature in the len length gth,, mea measur sured ed over the entire entire len length gth of the plate in the flat position. Maximum permissible camber, mm = length in millimetres/500
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A20/A20M − 13 TABLE A2.8 Permissible Camber for Carbon Steel, High-Strength Low-Alloy Steel, and Alloy Steel Universal Mill Plates and HighStrength Low-Alloy Steel and Alloy Steel Sheared or Gas-Cut Rectangular Plates
NOTE 1—Camber, as it relates to plates, is the horizontal edge curvature in the len length gth,, mea measur sured ed over the entire entire len length gth of the plate in the flat position. W i d th , m m
Camber for Width Given, mm
To 750, incl Over 750 to 1500
Length/300 Length/250
TABLE A2.9 Permissible Variations from Flatness for Carbon Steel Plates
NOTE 1— Flatness Variations for Length—The longer dimension dimension specified is considered the length, and variation in flatnes flatnesss along the length shall not exceed the tabular amount for the specified width in plates up to 4000 mm in length, or in any 4000 mm of longer plates. NOTE 2— Flatness Variations for Width—The flatness variation across the width shall not exceed the tabular amount for the specified width. NOTE 3—When the longer dimension is under 900 mm, the variation in flatness along the length and across the width shall not exceed 6 mm in each direction. When the longer dimension is from 900 to 1800 mm, inclusive, the flatness variation shall not exceed 75 % of the tabular amount for the specified width, but in no case less than 6 mm. NOTE 4—The tolerances given in this table apply to plates that have a minim minimum um specified tensile tensile stren strength gth not over 415 MPa or comparable comparable chemistry or hardness. For plates specified to a higher minimum tensile strength or comparable chemistry or hardness, the limits given in the table are increased to 11 ⁄ 2 times the amounts in the above table. NOTE 5—This table and notes cover the flatness tolerances of circular and sketch plates, based on the maximum dimensions of those plates. NOTE 6—Plates shall be in a horizontal position on a flat surface when flatness is measured. Specified Thickness, mm
To 6, excl 6 to 10 , e x c l 1 0 t o 1 2, e x c l 1 2 t o 2 0, e x c l 2 0 t o 2 5, e x c l 2 5 t o 5 0, e x c l 5 0 t o 1 00 , ex c l 1 0 0 t o 15 0, e x c l 1 5 0 t o 20 0, e x c l 2 0 0 t o 25 0, e x c l 2 5 0 t o 30 0, e x c l 3 0 0 t o 40 0, i n c l
Permissible Permis sible Variations Variations from a Flat Surface for Specifi Specified ed Widths, mm To 900, excl
900 to 1200
1200 to 1500
1500 to 1800
1800 to 2100
2100 to 2400
2400 to 2700
2700 to 3000
3000 to 3600
3600 to 4200
4200 and 0ver
14 13 13 11 11 10 8 10 11 13 13 16
19 16 14 13 13 13 10 11 13 13 16 19
24 19 16 14 14 13 11 13 13 16 19 21
32 24 16 16 16 14 13 13 16 18 21 22
35 29 19 16 16 14 13 14 18 19 22 24
38 32 22 19 16 16 13 14 19 21 24 25
41 35 25 25 19 16 13 16 22 22 25 25
44 38 29 25 22 16 14 19 22 24 25 25
48 41 32 29 25 18 16 22 25 25 25 25
... ... 48 38 35 29 22 22 25 25 25 25
... ... 54 51 44 38 29 25 25 25 25 ...
TABLE A2.10 Permissible Variations in Width and Length for Rectangular Alloy Steel Plates when Gas Cutting is Specified or Required
NOTE 1—These variations may be taken all under or divided over and under, if so specified. NOTE 2—Plates with universal rolled edges will be gas cut to length only. Spec Sp ecifi ified ed Th Thic ickn knes ess, s, mm
Var aria iati tion ons s Ov Over er fo forr Al Alll Sp Spec ecifi ified ed Widths and Lengths, mm
To 50, excl 5 0 to 1 0 0 , e x c l 1 00 t o 15 0 , e x c l 1 50 t o 20 0 , e x c l 2 00 t o 40 0 , i n c l
19 25 29 33 38
--`,,,,,```,,``,,,,``,`,`,``,,,-`-`,,`,,`,`,,`---
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A20/A20M − 13 TABLE A2.11 Permissible Variations in Diameter for Gas Cut Circular Circu lar Alloy Steel Plates
NOTE 1—No permissible variations under specified diameter. Variations Over Specified Diameter for Thicknesses Given, mm Specified Diameter, mm
To 800, excl 8 0 0 to 2 1 0 0 , e x c l 2 1 00 t o 27 0 0, ex c l 2 7 00 t o 33 0 0, i nc l
To 25, excl
25 to 50, excl
50 to 100, excl
13 13 16 22
13 16 19 25
19 22 25 29
100 to 150 to 150, 200, excl excl 19 25 29 32
25 29 32 35
200 to 400, incl 25 32 35 38
TABLE A2.12 Permissible Variations from Flatness for High-Strength Low-Alloy Steel and Alloy Steel Plates
NOTE 1— Flatness Tolerances for Length—The longer dimension specified is considered the length and variations from a flat surface along the length shall not exceed the tabular amount for the specified width in plates up to 4000 mm in length, or in any 4000 mm of longer plates. NOTE 2— Flatness Tolerances for Width—The flatness variation across the width shall not exceed the tabular amount for the specified width. NOTE 3—When the longer dimension is under 900 mm, the variation shall not exceed 10 mm. When the larger dimension is from 900 to 1800 mm, incl, the variation shall not exceed 75 % of the tabular amount for the specified width. NOTE 4—This table and notes cover the tolerances for flatness of circular and sketch plates, based on the maximum dimensions of those plates. NOTE 5—Plates shall be in a horizontal position on a flat surface when flatness is measured. Flatness Tolerances for Specified Widths, mm Specified Thickness, mm To 6, excl 6 t o 1 0, e x c l 1 0 to 12 , e x c l 1 2 to 20 , e x c l 2 0 to 25 , e x c l 2 5 to 50 , e x c l 5 0 to 10 0 , ex c l 1 0 0 to 1 5 0, e x c l 1 5 0 to 2 0 0, e x c l 2 0 0 to 2 5 0, e x c l 2 5 0 to 3 0 0, e x c l 3 0 0 to 4 0 0, i n c l
To 900, excl
900 to 1200
1200 to 1500
1500 to 1800
1800 to 2100
2100 to 2400
2400 to 2700
2700 to 3000
3000 to 3600
3600 to 4200
4200 and over
21 19 19 16 16 14 13 14 16 19 19 22
29 24 22 19 19 16 14 18 19 21 24 25
35 29 24 21 22 19 18 19 19 24 29 30
48 35 24 22 22 21 19 19 24 25 32 33
51 44 29 25 24 22 19 22 25 29 33 35
57 48 33 29 25 24 19 22 29 32 35 38
60 51 38 32 29 25 19 24 32 33 38 38
67 57 41 35 33 25 22 29 33 35 38 38
70 60 48 41 38 25 25 32 38 38 38 38
... ... 70 57 51 41 32 32 38 38 38 38
... ... 79 76 67 57 41 38 38 38 38 38
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` , , ` , ` , , ` , , ` ` , , , ` ` , ` , ` , ` ` , , , , ` ` , , ` ` ` , , , , , ` -
A20/A20M − 13 TABLE A2.13 Waviness Tolerances Tolerances for Rectangular Rectangular Plates, Universal Mill Plates, Circular Plates, and Sketch Plates
NOTE 1—Waviness denotes the deviation of the top or bottom surface from a horizontal line, when the plate is resting on a flat surface, as measured in an increment of less than 4000 mm of length. The waviness tolerance is a function of the flatness tolerance as obtained from Tables A 2.9 and A 2.12. Flatness Tolerance from Tables A2.9 and A2.12
When Number of Waves in 4000 mm is:
8 10 11 13 14 16 17 19 21 22 24 25 29 32 35 38 41 44 48 51 54 57 60 64 67 70 73 76 79
1
2
3
4
5
6
8 10 11 13 14 16 17 19 21 22 24 25 29 32 35 38 41 44 48 51 54 57 60 64 67 70 73 76 79
6 8 8 10 10 11 11 13 13 14 16 17 17 19 22 24 27 29 32 33 37 38 41 43 46 48 51 52 56 57 60
5 5 6 8 8 10 10 11 11 13 13 14 16 17 19 22 24 25 27 29 30 32 33 37 38 40 41 43 44
3 5 5 5 6 6 8 8 8 10 10 11 13 13 14 16 17 19 21 22 22 24 25 27 29 29 30 32 33
3 3 3 5 5 5 5 6 6 6 8 8 10 10 11 13 13 14 14 16 17 17 19 21 21 22 24 24 25
2 2 3 3 3 3 5 5 5 5 6 6 6 8 8 10 10 11 11 13 13 14 14 14 16 16 17 17 19
7 2 2 2 2 2 2 2 2 2 2 5 5 5 6 6 6 8 8 8 10 10 10 11 11 11 13 13 14 14
TABLE A2.14 Visible Edge Indications Extending Approximately Parallel to Rolled Surfaces Plate Specification and Thickness
A c c e pt ab l e
Acceptable on Edges Acceptable Cut in Fabric Fabrication ation
Remove by Grinding
Depth
LengthA
Depth
LengthA
Depth
LengthA
1
2
3
4
5
6
Other than killed killed,, to 50 mm, incl
3 mm, max
any
ov e r 2 5 m m
6 mm max
an y
Killed,C to 150 mm, incl
2 mm, max
a ny
o v er 25 m m
3 mm max
any
Killed,C over 150 mm
3 mm, max
a ny
o v e r 3 to 6 mm, incl o v e r 2 to 3 mm, incl o v e r 3 to 1 3 mm, incl
o v e r 25 m m
13 m m m a x
a ny
Column B
A
Laminar-type discontinuiti Laminar-type discontinuities es 25 mm and less in length are acceptable and do not requir require e explor exploration. ation. Specifications: A285; A433; A442 in thicknesses to 25 mm, incl; or A455. C The specifications in 1.1 of this standard, other than those listed in the above Table Footnote B Footnote B . B
--`,,,,,```,,``,,,,``,`,`,``,,,-`-`,,`,,`,`,,`---
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A20/A20M − 13 TABLE A2.15 Generally Available Grade-Thickness-Minimum Test Temperature Combinations Meeting Charpy V-Notch Requirements Indicated (Normalized or Quenched and Tempered Condition)
NOTE 1—The minimum temperatures listed are for longitudinal tests. For transverse tests, the available minimum temperature may be somewhat higher. Acceptance Criteria Charpy V-Notch Energy Absorption Minimum Average For 3 SpecimensB , J
Minimum For 1 SpecimenB , J
I
14
10
II III
18 18
14 14
A
Class
IV
20
16
V
27
20
Lateral Expansion mm, Minimum Each Specimen Transverse Test VI 0 .3 8
Test Temperature, °C for Plate Thicknesses (Unless Otherwise Agreed Upon) Specification and Grade
25 mm and Under
Over 25 mm to 50 mm, incl.
Over 50 mm to 75 mm, incl.
Over 75 mm to 125 mm, incl.
A285 Grade A A285 Grade B A285 Grade C A 4 55 A203 Grade A A203 Grade D A442 Grade 55 (38 mm max thickness) A442 Grade 60 (38 mm max thickness) A516 Grade 55 A516 Grade 60 A516 Grade 65 A537 Class 1 (Over 64–100 mm) A662 Grade A A662 Grade B A203 Grade B A203 Grade E A203 Grade F (100 mm max) A 29 9 A516 Grade 70 A537 Class 1 (64 mm max) A537 Class 2 (Over 64–100 mm) A662 Grade C A203 Grade F A537 Class 2 (64 mm max) A 61 2 A724 Grade A
+4 +10 +16 −4 −68 −101 ...
+16 +21 +27 ... −68 −101 −29
... ... ... ... −60 −87 ...
... ... ... ... ... ... ...
...
−26
...
...
−51 −51 −51 ... −60 −51 −68 −101 ... −7 −46 −62 ... −46 −107 −68 −46 −46
−51 −46 −46 ... −60 −51 −68 −101 ... −1 −40 −60 ... −46 −107 −68 ... ...
−46 −46 −40 −60 ... ... −60 −87 −107 −1 −35 −60 −60 ... ... −68 ... ...
− 46 − 46 − 32 −46 ... ... ... ... −107 +4 − 29 ... −46 ... ... ... ... ...
A 35 3 A553 Type I A553 Type II A 64 5 A517 all (64 mm max thickness) A724 Grade B
−196 −196 −170 −170
−196 −196 −170 −170
... ... ... ... ... ...
... ... ... ... ... ...
C
C
−46
...
A
Class I is Other is Other Than Killed with with a specified minimum tensile strength of 450 MPa or lower. Class II is Other is Other Than Killed with with a specified minimum tensile strength of over 450 to 520 MPa, incl. Class III is Killed is Killed with with a specified minimum tensile strength of 450 MPa or lower. Class IV is Killed is Killed with with a specified minimum tensile strength of over 450 to 520 MPa, incl. Class V is Killed is Killed with with a specified minimum tensile strength of over 520 MPa to but not including 655 MPa. Class VI is Killed is Killed with with a specified minimum tensile strength of 655 MPa or over. B Full size (10 by 10 mm) specimens. C Testing temperature as specified in the purchase order, but no higher than 0°C.
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A20/A20M − 13 TABLE A2.16 Permissible Permissible Var Variatio iations ns in Width for Mill Edge Carbon Steel and High-Strength High-Strength Low-Alloy Low-Alloy Steel Plates Produced on Strip Mills
NOTE 1—Applies to plates produced from coil and plates produced from plate-as-rolled. Variations Over Specified Width, mmA
Specified Specifi ed Width, mm To 360, excl 3 60 t o 4 3 0, e x c l 4 30 t o 4 8 0, e x c l 4 80 t o 5 3 0, e x c l 5 30 t o 6 1 0, e x c l 6 10 t o 6 6 0, e x c l 6 60 t o 7 1 0, e x c l 7 10 t o 8 9 0, e x c l 8 90 t o 1 2 70 , ex c l 1 2 7 0 to 1 5 2 0 , e x c l 1 5 2 0 to 1 6 5 0 , e x c l 1 6 5 0 to 1 7 8 0 , e x c l 1 7 8 0 to 2 0 3 0 , e x c l 2 03 0 a nd o v er A
11 13 14 16 17 21 24 29 32 38 41 44 47 51
No permissible variation under specified width.
APPENDIXES (Nonmandatory Information) X1. COIL COILED ED STEEL STEEL
X1.1 Contin Continuous uous wide hot strip rolling mills are norma normally lly equipp equ ipped ed with coi coiler lers. s. Reg Regard ardless less of the dif differ ferent ent typ types es of systems employed during or following the rolling operations, it is co comm mmon on fo forr th thee st stee eell to be re reel eled ed in into to th thee co coil iler er at tempera temp eratur tures es in the str stress ess-re -reliev lieving ing ran range. ge. In gen genera eral, l, suc such h temperatures are higher as the steel thickness increases. The coils subsequently cool to ambient temperature with outer and inner laps cooling more rapidly than central laps. The differ-
ence in cooling rate can result in measurable differences in the mechanical properties throughout a coil. Data confirm reduced yield and tensile strength, and increased percent elongation, for the product with slower cooling rates from the coiling temperatur per aturee to amb ambien ient. t. Suc Such h dif differ ferenc ences es are in add additio ition n to the effects on mechanical properties caused by differences in heat analysis analys is and chemica chemicall segreg segregation. ation.
X2. VARIA ARIATION TION OF TENSILE PROPERTIES IN PLA PLATE-AS-ROLLED TE-AS-ROLLED
X2.1 The tension requirements requirements of this general requirements requirements specificatio specific ation n are inte intende nded d onl only y to cha charac racter terize ize the ten tensile sile proper pro perties ties of a pla platete-asas-rol rolled led for det determ ermina inatio tion n of con confor for-mance to the requirements of the applicable product specifications. Such testing procedures are not intended to define the upper or lower limits of tensile properties at all possible test locations within a plate-as-rolled. It is well known and documented that tensile properties vary within a plate-as-rolled or individual piece of steel as a function of chemical composition, processing, testing procedure, and other factors. It is, therefore, incumbent on designers and engineers to use sound engineering judgement when using tension test results shown on mill test rep report orts. s. The test testing ing pro proced cedure uress of thi thiss gen genera erall req requir uireements specification have been found to provide plate adequate for normal pressure vessel design criteria.
entitled “The Variatio ariation n of Produ Product ct the Meta Metallu llurg rgyy of Ste Steel el entitled Analys Ana lysis is and Tens ensile ile Pro Proper perties ties—Car —Carbon bon Ste Steel el Pla Plates, tes, and Wide Flange Shapes” (SU/18, SU/19, and SU/20), published in September 1974. The data are presented in tables of probability that tensile properties at other than the official location may differ from those of the reported test location. X2.3 This gener general al requir requirements ements specification specification contai contains ns no requirement requi rementss applic applicable able to prod product uct tensio tension n tests; conformance conformance to the app applica licable ble pro produc ductt spe specifi cificati cation on is dete determi rmined ned on the basi ba siss of tes tests ts pe perf rfor ormed med at th thee pl plac acee of man manuf ufact actur uree or processing prior to shipment, unless otherwise specified.
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X2.4 A Task Task Group of ASTM Subcommittee Subcommittee A01.11 A01.11 has 6 determined, based on review of the AISI data (SU20), that the variation in tensile properties within a plate-as-rolled can be expressed as a function of specified requirements; one standard devi de viati ation on eq equa uals ls ap appr prox oxim imate ately ly 3 % of re requ quir ired ed ten tensil silee streng str ength, th, 5 % of req requir uired ed yie yield ld str streng ength, th, and 3 per percen centage tage points of required elongation.
X2.2 X2. 2 A survey survey of the var variati iation on to be expected expected in ten tensile sile properties proper ties obt obtain ained ed fro from m pla plates tes and str struct uctura urall sha shapes pes was conducted by the American Iron and Steel Institute (AISI). 6 The results of this survey are contained in a Contributions to Copyright ASTM International Provided by IHS under license with ASTM No reproduction or networking permitted without license from IHS
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A20/A20M − 13 X3. VARIA ARIATION TION IN CHARPY V-NOTCH V-NOTCH TESTS
X3.1 A survey X3.1 survey of the var variati iation on to be exp expecte ected d in Cha Charpy rpy V-Notch test results obtained from three common fine grain platee ste plat steels els was conducte conducted d by the American American Iron and Steel 6 Institute (AISI). The results of the survey are contained in a Contributions to the Metallurgy of Steel entitled, “The Variations tio ns of Ch Char arpy py V-N -Not otch ch Im Impa pact ct Tes estt Pr Prop oper ertie tiess in Ste Steel el Plates,” Plat es,” (SU (SU/24 /24), ), pub publish lished ed Jan Januar uary y 197 1979. 9. The sur survey vey dat dataa consists of test values obtained from six locations in addition to the locations specified in 12.1.3 in 12.1.3 of of this specification. The plate
conditions tested involved as-rolled, normalized, and quench and tempered. Sufficient full-size specimens were taken from each sample so tha thatt thr three ee lon longitu gitudin dinal al and thr three ee tran transve sverse rse specimens could be broken at three test temperatures defined for each grade. The data is presented in tables of probability that impact properties at other than the official location which may differ from those of the reported test location. Additional data of the same type, but utilizing samples from thicker plates, was published by AISI as SU/27. 6
X4. RAD RADIUS IUS FOR COLD BENDING BENDING
X4.1 Sugge Suggested sted minimum inside inside bend radii for cold forming in g ar aree re refe fere renc nced ed to gr grou oup p De Desi sign gnati ation onss A th thro roug ugh h F as defined in Table in Table X4.1. X4.1. The suggested radii listed in Table in Table X4.2 shou sh ould ld be us used ed as mi mini nimu mums ms in ty typi pical cal sh shop op fa fabr brica icatio tion. n. Material that does not form satisfactorily when fabricated in accordance accord ance with Table Table X4.2 may may be su subj bjec ectt to re rejec jectio tion n pending negotiation with the steel supplier. When tighter bends are required, the manufacturer should be consulted.
or gas cut holes should be removed by chamfering or grinding to a radius. X4.4 If possible, possible, parts should be formed such that the bend line is perpendicular to the direction of final rolling. If it is necessary necess ary to bend with the bend line parall parallel el to the direction of final rolling, a more generous radius is suggested (1 1 ⁄ 2 times applicable value given in Tab Table le X4.2 X4.2 for bend lines perpendicular to the direction of rolling).
X4.2 The bend radius radius and the radius of the male die shou should ld be as liberal as the finished part will permit. The width across the shoulders of the female die should be at least 8 times the plate thickness. Higher strength steels require larger die openings. The surface of the dies in the area of radius should be smooth.
X4.5 Refere References nces X4.5 Holt, G. E., E., et al. “Minimum “Minimum Cold Bend Bend Radii Radii Project Project - Final Report,” Concurrent Technologies Corporation, January 27, 1997. Brockenbr Brocke nbroug ough, h, R. L., “Fa “Fabri bricati cation on Gui Guidel deline iness for Col Cold d Bending,” R. L. Brockenbrough & Associates, June 28, 1998. Both of these references are available from American Iron and Stee Steell Ins Institu titute, te, 11 1101 01 17t 17th h Str Street eet NW NW,, Wash ashing ington ton,, DC 20036-4700.
X4.3 Sin X4.3 Since ce cra cracks cks in cold ben bendin ding g com common monly ly ori origin ginate ate from the outside edges, shear burrs and gas cut edges should be removed by grinding. Sharp corners on edges and on punched
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A20/A20M − 13 TABLE X4.1 Group Designations for Cold Bending Specification
Class Where Applicable
A203/A203M
A, D B, E F A B C C, D A, B, C A, B A, C, D B
A204/A204M
A225/A225M A285/A285M A299/A299M A302/A302M A353/A353M A387/A387M
1,, 2 1 1 2
A455/A455M A515/A515M A516/A516M
A517/A517M A533/A533M A537/A537M A542/A542MD
A543/A543M A553/A553MD A562/A562M A612/A612M A645/A645M A662/A662M
1, 2, 3 1, 2B , 3B 2C , 3C 1, 2 3, 4 4a 1, 2, 3 1,
A734/A734MD A735/A735M A736/A736M A737/A737M A738/A738M
A844/A844M A1017/A1017M A1041/A1041M
2, 11, 12 5 , 9 , 2 1 , 2 1 L, 2 2, 22 L 5, 9, 21, 22, 91 6 0 or 6 5 70 55 60, 65 70 A, B, E, F, H, P, Q, S A, B, C, D, E
B, C
A, B C A, C B
A724/A724M
A832/A832M A841/A841M
Grade Where Applicable
1 , 2 , 3, 4 1, 2, 3 1,
1, 2 1, 3
A, C B, C A, B CB CC 21V, 22V, 23V A, B, C D 2 3 , 1 22 92, 911 3 1 5, 31 5 T
Group DesignationA B C D B C D D A D D E D C E E C B C A B C F E C D F D E F D A C D B C D E D E D B D C D E C F D D E F
A
Steels in Groups A to E inclusive are grouped on the basis of similar specified values for minimum elongation in 2 in. [50 mm]; Group F includes steels that have a specified minimum elongation in 2 in. [50 mm] of 16 or less, and steels that have a ratio of specified minimum tensile strength to specified minimum yield strength of 1.15 or less. B For thicknesses of 4 in. [100 mm] and less. C For thicknesses over 4 in. [100 mm]. D For any type.
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A20/A20M − 13 TABLE X4.2 Sugge Suggested sted Minimum Inside Radii for Cold Bendi Bending ng A Thickness (t), in. [mm] Group 3 DesignationB Up to ⁄ 4 in. [20 mm] A B C D E F
1.5t 1.5t 1.5t 1.5t 1.5t 1.75t
Over 3 ⁄ 4 in. [20 mm] Over 1 in. [25 mm] to 1 in. [25 mm], to 2 in. [50 mm], incl incl
1.5t 1.5t 1.5t t 1.5 1.5t t 1.5 1.5t t 1.5 1.5t t 1.5 2.25t 2.25t
Over 2 in. [50 mm]
1.5t 1.5t 1.5t t 1.5 2.0t t 2.0 2.5t t 2.5 3.0t t 3.0 4.5t t 4.5
1.5t 1.5t 2.0t t 2.0 2.5t t 2.5 3.0t t 3.0 3.5t t 3.5 5.5t t 5.5
A
Values are for bend lines perpendicular to the direction of final rolling. These radii apply when the precautions listed in X4.2 in X4.2 are are followed. If bend lines are parallel to the direction of final rolling, multiply values by 1.5. B Steels specifications specifications included included in the group designations designations may not includ include e the entire thickness range shown in this table.
SUMMARY OF CHANGES Committ Comm ittee ee A0 A01 1 ha hass id iden entifi tified ed th thee lo loca catio tion n of se selec lected ted ch chan ange gess to th this is st stan anda dard rd sin since ce th thee la last st iss issue ue (A20/A20M – 11) that may impact the use of this standard. (Approved Oct. 1, 2013.) Section 11.6.1.. (1) Revised Section 11.6.1 and Table Table A2.2. A2.2. (2) Revised Table Footnote A in Table A1.2 and
19.1.1.. (3) Deleted Note 4 from 19.1.1
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