A666-15 Standard Specification for Annealed or Cold-Worked Austenitic Stainless Steel Sheet, Strip, Plate, And Flat Bar

Designation: A666 − 15

Standard Specification for

Annealed or Cold-Worked Austenitic Stainless Steel Sheet, Strip, Plate, and Flat Bar 1 This standard is issued under the fixed designation A666; the number immediately following the designation indicates the year of  original origin al adoption or, in the case of revis revision, ion, the year of last revision. revision. A number in paren parenthese thesess indicates the year of last reappr reapproval. oval. A superscript epsilon (´) indicates an editorial change since the last revision or reapproval. This standard has been approved for use by agencies of the U.S. Department of Defense.

1. Sco Scope* pe*

4. Chem Chemical ical Compositio Composition n

1.1 This specification specification covers covers austenitic austenitic stainless steels in the annealed anneale d and norm normally ally requi required red coldcold-worke worked d condit conditions ions for variouss structu variou structural, ral, press pressure ure vessel vessel,, magne magnetic, tic, cryog cryogenic, enic, and heat-r hea t-resis esistin ting g app applica licatio tions. ns. (Th (This is rev revisio ision n of Spe Specific cificatio ation n A666 replaces prior Specifications A412 and A177.)

4.1 The ste 4.1 steel el sh shall all co conf nfor orm m to th thee re requ quir irem emen ents ts as to chemical composition specified in Table in  Table 1, 1,  and shall conform to applicable requirements specified in the current edition of  Specification A480/A480M Specification  A480/A480M.. 5. Mechanical Propertie Propertiess

1.2 Th 1.2 Thee ap appl plica icatio tion n of th this is sp speci ecific ficati ation on,, or th thee us usee of  material covered by this specification does not automatically allow allo w usa usage ge in pre pressu ssure re ves vessel sel app applica licatio tions. ns. Onl Only y ann anneale ealed d conditions of grades specifically approved by the ASME code are permitted for pressure vessel use.

5.1 The material shall conform conform to the mechanical properties properties specified in Tables in  Tables 2 and 3, 3, or or Tables  Tables 2 and 4. 4. 6. General Requirements Requirements 6.1 The fol follow lowing ing req requir uireme ements nts for ord orders ers for mate material rial furnished under this specification shall conform to the applicable cab le req requir uiremen ements ts of the cur curren rentt edit edition ion of Spe Specifi cificati cation on A480/A480M or or A484/A484M  A484/A484M:: 6.1.1 Definit Definitions, ions, 6.1.2 Gener General al requi requirement rementss for delivery, delivery, 6.1.3 Order Ordering ing information, information, 6.1.4 Proce Process, ss, 6.1.5 Specia Speciall tests, 6.1.6 Heat treatment, treatment, 6.1.7 Dimens Dimensions ions and permis permissible sible variations, variations, 6.1.8 Workm orkmanship anship,, finish and appea appearance, rance, 6.1.9 Numbe Numberr of tests/test methods, 6.1.10 6.1.1 0 Specim Specimen en preparation, preparation, 6.1.11 6.1.1 1 Retreat Retreatment, ment, 6.1.12 6.1.1 2 Insp Inspection, ection, 6.1.13 6.1.1 3 Rejectio Rejection n and rehear rehearing, ing, 6.1.14 6.1.1 4 Materi Material al test report, 6.1.15 6.1.1 5 Certific Certification, ation, and 6.1.16 6.1.1 6 Packag Packaging, ing, marking, and loading.

1.3 The values stated in inch-poun inch-pound d units are to be regar regarded ded as th thee st stan anda dard rd.. Th Thee va valu lues es gi give ven n in pa pare rent nthe hese sess ar aree fo forr information only. 2. Referenc Referenced ed Documents Documents 2.1   ASTM Standards:2 A240/A240M Specification A240/A240M  Specification for Chromium and ChromiumNickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications A370   Test Methods and Definitions for Mechanical Testing A370 of Steel Products A480/A480M Specifi Specification cation for Gener General al Requir Requirements ements for Flat-Rol Flat -Rolled led Stain Stainless less and Heat Heat-Res -Resistin isting g Steel Plat Plate, e, Sheet, and Strip A484/A484M Specifi Specification cation for Gener General al Requir Requirements ements for Stainless Steel Bars, Billets, and Forgings 3. Material Test Test Report and Certification 3.1 In addition to the requi requirements rements of Specification Specification A480/   A480/  1 1 A480M,, the cold-worked condition (annealed,  ⁄ 4  H,  ⁄ 2  H, and A480M so forth) shall be noted.

7. Sampl Sampling ing 7.1 Tens ension ion and ben bend-t d-test est spe specime cimens ns of she sheet, et, str strip, ip, and plate products shall be selected from finished material and shall be selected in the transverse direction, except in the case of  strip under 9 in. (229 mm) in width, in which case tension test specimens shall be selected in the longitudinal direction.

1

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 A01.17 on A01.17  on Flat-Rolled and Wrought Stainless Steel. Current Curre nt editi edition on appro approved ved March 1, 2015. Published Published March 2015. Originally approved approv ed in 1972. Last previous edition approved approved in 2010 as A666 – 10. DOI: 10.1520/A0666-15. 2 For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [email protected]. For Annual Book of ASTM Standards volume information, refer to the standard’s Document Summary page on the ASTM website.

7.2 Flat bar ten tensio sion n and bend-test bend-test specimen specimenss sha shall ll be selected from the finished material and shall be in the longitudinal direct direction. ion.

*A Summary of Changes section appears at the end of this standard Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States

1

A666 − 15 TABLE 1 Chemical Composition Requirements A Type

Composition, %B 

UNS Designation

Carbon

M an g an e s e

Phosphorus

Su l f ur

S i l i c on

Chromium

Nickel

Other Elements

201 2 0 1L 2 0 1L N

S 2 01 0 0 S 2 01 0 3 S 2 0 15 3

0 .1 5 0 .0 3 0 .0 3

5 .5 – 7 .5 5 . 5 – 7 .5 6 .4 – 7 .5

0 .0 6 0 0 .0 4 5 0 .0 4 5

0 .0 3 0 0. 03 0 0 .0 1 5

0 .7 5 0. 75 0 .7 5

1 6 .0 – 1 8 .0 1 6. 0– 1 8. 0 1 6 .0 – 1 7 .5

3 . 5 – 5 .5 3 .5 – 5 . 5 4 . 0 – 5 .0

202 ... 205 301 3 0 1L 3 0 1L N 3 0 1S i

S 2 02 0 0 S 20 4 00 S 2 05 0 0 S 3 01 0 0 S 3 01 0 3 S 3 0 15 3 S30116

0 .1 5 0 .0 3 0 0. 12 – 0. 25 0 .1 5 0 .0 3 0 .0 3 0 .1 5

7 . 5 – 1 0 .0 7 .0 – 9 .0 1 4 . 0 – 1 5 .0 2 .0 0 2. 00 2 .0 0 2. 00

0 .0 6 0 0. 04 0 0. 06 0 0 .0 4 5 0. 04 5 0 .0 4 5 0 .0 4 5

0. 03 0 0 .0 3 0 0 .0 3 0 0 .0 3 0 0. 03 0 0 .0 3 0 0 .0 3 0

0. 75 1 .0 0 0 .7 5 1 .0 0 1. 00 1 .0 0 1 .0 0 – 1 .3 5

1 7. 0– 1 9. 0 1 5 .0 – 1 7 .0 1 6 .5 – 1 8 .0 1 6. 0– 1 8. 0 1 6 .0 – 1 8 .0 1 6. 0– 1 8. 0 1 6 .0 – 1 8 .0

4 .0 – 6 . 0 1 .5 0 – 3 .0 0 1 .0 0 – 1 . 7 5 6 . 0 – 8 .0 6 .0 – 8 .0 6 .0 – 8 . 0 6 .0 – 8 .0

N 0 .2 5 N 0 .2 5 N 0 . 1 0 – 0 .2 5 Cu 1.00 N 0 .2 5 N 0 .1 5 – 0 .3 0 N 0 .3 2 – 0 . 4 0 N 0. 10 N 0 .2 0 N 0 .0 7 – 0 .2 0 N 0 .2 0 , Mo 1.00

302 304 3 0 4L 3 0 4N 3 0 4L N 316 3 1 6L 3 1 6N

S 3 02 0 0 S 3 04 0 0 S 3 04 0 3 S 3 0 45 1 S 3 0 45 3 S 3 16 0 0 S 3 16 0 3 S 3 1 65 1

0 .1 5 0 .0 8 0. 03 0 0. 08 0 .0 3 0 0 .0 8 0. 03 0 0. 08

2 .0 0 2 .0 0 2 .0 0 2 .0 0 2. 00 2 .0 0 2 .0 0 2 .0 0

0 .0 4 5 0 .0 4 5 0. 04 5 0. 04 5 0. 04 5 0 .0 4 5 0. 04 5 0. 04 5

0 .0 3 0 0 .0 3 0 0 .0 3 0 0 .0 3 0 0 .0 3 0 0 .0 3 0 0 .0 3 0 0 .0 3 0

0 .7 5 0 .7 5 0 .7 5 0 .7 5 0 .7 5 0 .7 5 0 .7 5 0 .7 5

1 7. 0– 1 9. 0 1 8. 0– 2 0. 0 1 8 .0 – 2 0 .0 1 8 .0 – 2 0 .0 1 8 . 0 – 2 0 .0 1 6. 0– 1 8. 0 1 6 .0 – 1 8 .0 1 6 .0 – 1 8 .0

8 . 0 – 1 0 .0 8 . 0 – 1 0 .5 8 .0 – 1 2 . 0 8 .0 – 1 0 .5 8 .0 – 1 2 .0 1 0 .0 – 1 4 .0 1 0 . 0 – 1 4 .0 1 0 .0 – 1 4 .0

XM–11 XM–14

S21904 S21460

0.04 0.12

8.0–10.0 14.0–16.0

0.060 0.060

0.030 0.030

0.75 0.75

19.0–21.5 17.0–19.0

5.5–7.5 5.0–6.0

A B 

N 0 .1 0 N 0 .1 0 N 0 .1 0 – 0 .1 6 N 0 .1 0 – 0 . 1 6 Mo 2.00–3.00 Mo 2.00–3.00 Mo 2.00–3.00 N 0.10–0.16 N 0.15–0.40 N 0.35–0.50

Types XM–10 and XM–19, which appeared in Specification A412, do not appear as XM–10 is no longer produced and XM–19 is covered in Specification A240/A240M  A240/A240M.. Maximum unless otherwise indicated.

7.3 Corrosi Corrosion on sam sample ples, s, if requir required, ed, sha shall ll be tak taken en fro from m material after final annealing and descaling and prior to cold working.

9.1.2 The requirement of this specification for yield strength willl be con wil consid sidere ered d as hav having ing been ful fulfille filled d if the extension extension under load for the specified yield strength does not exceed the specified specifi ed values. The values obtained obtained in this manner should not, however, be taken as the actual yield strength for 0.2 %. In case of dispute, the offset method of determining yield strength shall be used.

8. Numb Number er of Tests Tests 8.1 For col cold-w d-work orked ed pro produc ductt pro produc duced ed in coi coill for form, m, one tension test shall be made from each end of each coil. One bend test shall be made from one end of each coil.

9.2   Bend Test: 9.2.1 9.2 .1 Bend-test Bend-test spe specime cimens ns sha shall ll wit withst hstand and col cold d ben bendin ding g with wi thou outt cr crac acki king ng wh when en su subj bject ected ed to eit eithe herr th thee fr free ee-b -ben end d method or the contr controlledolled-bend bend (V-bloc (V-block) k) method at the condi condi-tion specified by  Table 3 or or   Table 4, 4, respectively. Specimens shall be bent around a diameter equal to the product of the bend factor times the specified thickness of the test specimen. The choice of test method for materials in conditions other than annealed shall be at the option of the seller. 9.2.2 Free-b Free-bend end test specimens shall be bent cold, either by pressure or by blows. However, in the case of dispute, tests shall be made by pressure. 9.2.3 9.2 .3 Con Contro trolled lled-be -bend nd (V (V-bl -block ock)) test spe specime cimens ns sha shall ll be bent cold by means of V-blocks or a mating punch and die having an included angle of 45° and with proper curvature of  surf su rfac acee at th thee be bend nd ar areas eas to im impa part rt th thee de desi sire red d sh shap apee an and d diameter of bend to the specimen.

8.2 For cold-worked cold-worked flat bar and plate products, products, two tension test and one bend test shall be made on each size of flat bar and each thickness of plate from each heat in a lot annealed in a single sin gle cha charg rgee or und under er the same con condit dition ionss in a con continu tinuous ous furnace. 8.3 Ann Anneale ealed d mate materia riall pro produc duced ed to   Table Table 2   requirements shall be tested in accord accordance ance with Specifi Specification cation A480/A480M  A480/A480M.. 9. Test Methods Methods 9.1   Tension Test: 9.1.1 The yield strength shall be determ determined ined by the of offset fset method as described in Test Methods and Definitions  A370  A370.. An alternative method of determining field strength may be used based on the following total extension under load: Yiel Yi eld d St Stre reng ngth th,, mi min. n. ps psii 4 5 0 00 7 5 0 00 110 000 1 3 5 00 0 1 4 0 00 0

Tot otal al Ex Exte tens nsio ion n un unde derr Loa Load d in 2 in in.. Gauge Length, incl. 0 .0 0 7 1 0 .0 0 9 8 0 .0 1 2 5 0 .0 1 4 4 0 .0 1 4 8

10. Keyw Keywords ords 10.1 austen austenitic itic stainless steel; cold-w cold-worked orked stainless steel; stainless stainle ss steel flat bar; stainle stainless ss steel plate; stainless steel sheet; stainless steel strip; structural

2

A666 − 15 TABLE 2 Tensile Property Requirements A

Type

201–1B  2 01 –2 2 01 L 2 01 LN 2 02 ... 2 05 3 01 3 01 L 3 01 LN 3 02 ... 3 04 3 04 L 3 04 N 3 04 LN 3 16 3 16 L 3 16 N XM–11

X M – 14

Type 2 01 2 01 L 2 01 LN 2 05 3 01 3 01 L 3 01 LN 3 02 3 04 3 04 L 3 04 N 3 04 LN 3 16 3 16 L 3 16 N Type

2 01 2 01 L 2 01 LN 2 05 3 01 3 01 L 3 01 LN 3 02 3 04 3 04 L 3 04 N 3 04 LN 3 16 3 16 L 3 16 N

UNS Designation S 20 10 0 Class 1 S 2 0 10 0 Class 2 S 2 0 10 3 S 20 15 3 S 20 2 00 S 2 04 0 0 S 20 5 00 S 30 1 00 S 3 0 10 3 S 30 15 3 S 30 2 00 S30116 S 30 4 00 S 3 0 40 3 S 3 04 5 1 S 30 45 3 S 31 6 00 S 3 1 60 3 S 3 16 5 1 S 21 9 04 Sheet, Strip P l a te S 21 4 60 UNS Designation S20100 PSSD  FBE  S 2 0 10 3 S 20 15 3 S 20 5 00 S 30 1 00 S 3 0 10 3 S 30 15 3 S 3 02 0 0 P S S FB S 3 04 0 0 P S S FB S 3 0 40 3 S 3 04 5 1 S 30 45 3 S 3 16 0 0 P S S FB S 3 1 60 3 S 3 16 5 1 UNS Designation S 20 1 00 S 2 0 10 3 S 20 15 3 S 20 5 00 S 30 1 00 S 3 0 10 3 S 30 15 3 S 30 2 00 S 30 4 00 S 3 0 40 3 S 3 04 5 1 S 30 45 3 S 31 6 00 S 3 1 60 3 S 3 16 5 1

Tensile Strength, min ps i MPa

Annealed Yield Strength, min ps i MPa

E l o n g a ti o n i n 2 in. or 50 mm, min, %

Hardness, max Brinell Rockwell B

7 5 0 00

51 5

3 8 00 0

26 0

40

21 7

95

95 00 0

6 55

45 0 00

31 0

40

2 41

10 0

9 5 0 00 95 000 90 000 9 5 00 0 115 000 75 000 8 0 0 00 80 000 75 000 75 00 0 75 000 7 0 0 00 8 0 00 0 75 000 75 000 7 0 0 00 8 0 00 0

655 65 5 62 0 6 55 790 51 5 550 55 0 51 5 5 15 51 5 485 5 50 51 5 51 5 485 5 50

3 8 00 0 45 0 00 3 8 00 0 48 0 00 65 000 3 0 00 0 32 000 3 5 00 0 3 0 00 0 30 0 00 3 0 00 0 25 000 35 00 0 3 0 00 0 3 0 00 0 25 000 35 00 0

26 0 3 10 26 0 33 0 45 0 20 5 22 0 2 40 20 5 20 5 20 5 17 0 2 40 2 05 20 5 17 0 2 40

40 45 40 35 40 40 45 45 40 40 40 40 30 40 40 40 35

217 24 1 24 1 2 41 241 21 7 241 24 1 20 1 2 17 20 1 201 2 17 21 7 21 7 217 2 17

95 1 00 ... 10 0 10 0 95 10 0 1 00 92 95 92 92 95 95 95 95 95

1 0 0 0 00

690

60 000

41 5

40

...

...

9 0 00 0 1 05 0 00

6 20 725

3 45 380

45 40

... ...

... ...

Tensile Strength, min ps i MPa

50 0 0 0 5 5 0 00 C  1 16  Hard  ⁄ 16 Yield Strength, ps i

mi n MPa

95 75 10 0 1 00 115 90 10 0 1 00 85 90 80 90 80 90 90 85 90 85 90

45 40 50 50 65 45 50 50 45 45 45 45 45 45 45 45 45 45 45

31 0 27 5 34 5 34 5 45 0 31 0 34 5 34 5 31 0 3 10 31 0 3 10 31 0 3 10 3 10 31 0 3 10 31 0 3 10

000 000 0 00 000 000 000 0 00 000 000 000 000 000 0 00 00 0 000 000 000 0 00 00 0

65 5 51 5 6 90 690 790 62 0 6 90 690 58 5 62 0 55 0 62 0 550 6 20 62 0 58 5 62 0 585 6 20

Tensile Strength, min ps i MPa 100 10 5 110 115 100 110 110 100 100 1 00 10 0 100 100 1 00 10 0

0 00 0 00 00 0 000 0 00 000 00 0 0 00 0 00 00 0 000 0 00 0 00 00 0 000

690 7 25 760 790 690 7 60 760 690 690 6 90 69 0 690 690 6 90 69 0

00 0 00 0 0 00 0 00 000 00 0 0 00 0 00 0 00 00 0 0 00 00 0 000 00 0 00 0 0 00 00 0 000 00 0 1  ⁄ 8  HardC  Yield Strength, ps i

55 55 60 65 55 60 60 55 55 55 55 55 55 55 55

000 0 00 0 00 000 000 0 00 0 00 000 000 0 00 00 0 000 000 0 00 00 0 1  ⁄ 4  Hard

3

mi n MPa 38 0 38 0 41 5 45 0 38 0 41 5 41 5 38 0 38 0 38 0 3 80 38 0 38 0 38 0 3 80

Elongation in 2 in. or 50 mm, min, % $0.015 to < 0. 01 5 i n . >0.030 in. #0.030 in. 40 40 40 ... ... 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 40 ... ... 40 35 35 35 ... ... 40 40 40 40 40 40 40 40 40 40 35 35 35 ... ... 40 35 35 35 35 35 35 Elongation in 2 in. or 50 mm, min, % $0.015 to < 0. 01 5 i n . >0.030 in. #0.030 in. 45 45 45 35 35 35 35 35 35 40 40 40 40 40 40 35 35 35 35 35 35 35 35 35 35 35 35 30 30 30 37 37 37 33 33 33 30 30 30 25 25 25 32 32 32

A666 − 15 Type 2 01 2 01 L 2 01 LN 2 02 ... 2 05 3 01 3 01 L 3 01 LN 3 02 3 04 3 04 L 3 04 N 3 04 LN 3 16 3 16 L 3 16 N XM-11

Type 2 01 2 01 L 2 01 LN 2 05 3 01 3 01 L 3 01 LN 3 02 3 04 3 04 L 3 04 N 3 04 LN 3 16 3 16 L 3 16 N

Type 2 01 2 05 3 01 3 02

S 20 1 00 S 2 0 10 3 S 20 15 3 S 20 2 00 S 2 04 0 0 S 20 5 00 S 30 1 00 S 3 0 10 3 S 30 15 3 S 30 2 00 S 30 4 00 S 3 0 40 3 S 3 04 5 1 S 30 45 3 S 31 6 00 S 3 1 60 3 S 3 16 5 1 S 21 90 4 UNS Designation S 20 1 00 S 2 0 10 3 S 20 15 3 S 20 5 00 S 30 1 00 S 3 0 10 3 S 30 15 3 S 30 2 00 S 30 4 00 S 3 0 40 3 S 3 04 5 1 S 30 45 3 S 31 6 00 S 3 1 60 3 S 3 16 5 1 UNS Designation S 20 1 00 S 20 5 00 S 30 1 00 S 30 2 00

Type 2 01 2 05 3 01 3 02

UNS Designation S 20 1 00 S 20 5 00 S 30 1 00 S 30 2 00

Type

3 01 ...

UNS Designation

UNS Designation S 30 1 00 S30116

Tensile Strength, min ps i MPa 125 12 0 1 20 125 14 0 125 125 12 0 1 20 125 125 1 25 12 5 125 125 1 25 12 5 130

0 00 0 00 000 0 00 00 0 0 00 0 00 0 00 000 0 00 0 00 00 0 000 0 00 0 00 00 0 000 0 00

860 8 25 825 860 9 65 860 860 8 25 825 860 860 8 60 86 0 860 860 8 60 86 0 895

Tensile Strength, min ps i MPa 150 1 35 135 150 150 1 35 135 150 150 1 50 15 0 150 150 1 50 15 0

0 00 00 0 0 00 0 00 0 00 00 0 0 00 0 00 0 00 00 0 000 0 00 0 00 00 0 000

1 03 5 93 0 9 30 1 03 5 1 03 5 93 0 9 30 1 03 5 1 03 5 10 3 5 1 0 35 1 03 5 1 03 5 10 3 5 1 0 35

Tensile Strength, min ps i MPa 175 175 175 175

0 00 0 00 0 00 0 00

1 20 5 1 20 5 1 20 5 1 20 5

Tensile Strength, min ps i MPa 185 185 185 185

0 00 0 00 0 00 0 00

1 27 5 1 27 5 1 27 5 1 27 5

Yield Strength, min ps i MPa 75 75 75 75 1 00 75 75 75 75 75 75 75 75 75 75 75 75 115

00 0 0 00 000 00 0 0 00 00 0 00 0 0 00 000 00 0 00 0 0 00 0 00 000 00 0 0 00 0 00 00 0 1  ⁄ 2  Hard Yield Strength, ps i

110 100 10 0 110 110 100 10 0 110 110 110 110 110 110 110 110

00 0 0 00 0 00 00 0 00 0 0 00 0 00 00 0 00 0 000 00 0 00 0 00 0 000 00 0 3  ⁄ 4  Hard Yield Strength, ps i

135 135 135 135

0 00 0 00 0 00 0 00 Full Hard Yield Strength, ps i

51 5 51 5 51 5 51 5 96 0 51 5 51 5 51 5 51 5 51 5 51 5 51 5 5 15 51 5 51 5 51 5 5 15 795 mi n Mpa 7 60 6 90 690 7 60 7 60 6 90 690 7 60 7 60 76 0 760 7 60 7 60 76 0 760 mi n MPa 9 30 9 30 9 30 9 30 mi n MPa

Tensile Strength, min ps i MPa

1 4 0 0 00 9 65 1 4 0 0 00 9 65 1 4 0 0 00 9 65 1 4 0 0 00 9 65 Super Full Hard Yield Strength, min ps i MPa

2 70 0 0 0 2 7 0 00 0

2 60 0 0 0 26 0 00 0

1 86 0 1 8 60

A

17 9 0 1 79 0

Elongation in 2 in. or 50 mm, min, % $0.015 to < 0. 01 5 i n . >0.030 in. #0.030 in. 25 25 25 25 25 25 25 25 25 12 12 ... 20 20 20 45 45 45 25 25 25 25 25 25 25 25 25 10 10 12 10 10 12 8 8 10 12 12 12 10 10 12 10 10 10 8 8 8 12 12 12 15 15 ... Elongation in 2 in. or 50 mm, min, % $0.015 to < 0 .0 1 5 i n . >0.030 in. #0.030 in. 15 18 18 22 22 20 22 22 20 15 18 18 15 18 18 20 20 20 20 20 20 9 10 10 6 7 7 5 6 6 6 8 8 6 7 7 6 7 7 5 6 6 6 8 8 Elongation in 2 in. or 50 mm, min, % $0.015 to < 0. 01 5 i n . >0.030 in. #0.030 in. 10 12 12 15 15 15 10 12 12 5 6 6 Elongation in 2 in. or 50 mm, min, % $0.015 to < 0. 01 5 i n . >0.030 in. #0.030 in. 8 9 9 10 10 10 8 9 9 3 4 4 Elongation in 2 in. or 50 mm, min, % $0.015 to < 0. 01 5 i n . >0.030 in. #0.030 in. ... ... ... ... ... ...

This specification defines minimum properties only and does not imply a range. Depending on the work hardening characteristics of the particular grade, either the yield or the tensil tensile e streng strength th can be the contro controlling lling factor in meetin meeting g the properties. properties. The noncon noncontrolli trolling ng factor normal normally ly will exceed considerably considerably the speci specified fied minimum. B  Type 201 is generally produced with a chemical composition balanced for rich side (Type 201-1) or lean side (Type 201-2) austenite stability depending on the properties required for specific applications. C  Annealed Anneal ed materi material al that naturally meets mechan mechanical ical properties may be applie applied. d. D  PSS means plate, strip, sheet. E  FB means flat bar.

4

A666 − 15 TABLE 3 Free Bend Requirements Type 20 1 20 1L 20 1L N 20 2 ... 20 5 30 1 30 1L 30 1L N 30 2 30 4 30 4L 30 4N 30 4L N 31 6 31 6L 31 6N XM-11 XM-14

UNS Designation S 2 0 10 0 S 2 0 10 3 S 20 15 3 S 2 0 20 0 S 2 04 00 S 2 0 50 0 S 3 0 10 0 S 3 0 10 3 S 30 13 3 S 3 0 20 0 S 3 0 40 0 S 3 0 40 3 S 30 4 51 S 30 45 3 S 3 1 60 0 S 3 1 60 3 S 31 6 51 S 21 90 4 S 21 46 0

Type

20 1 20 1L 20 1L N 20 2 ... 20 5 30 1 30 1L 30 1L N ... 30 2 30 4 30 4L 30 4N 30 4L N 31 6 31 6L 31 6N XM-11

UNS Designation

S 2 0 10 0 S 2 0 10 3 S 20 15 3 S 2 0 20 0 S 2 04 00 S 2 0 50 0 S 3 0 10 0 S 3 0 10 3 S 30 15 3 S30116 S 3 0 20 0 S 3 0 40 0 S 3 0 40 3 S 30 4 51 S 30 45 3 S 3 1 60 0 S 3 1 60 3 S 31 6 51 S 21 90 4 Type

20 1 20 1L 20 1L N 20 5 30 1 30 1L 30 1L N 30 2 30 4 30 4L 30 4N 30 4L N 31 6 31 6L 31 6N

UNS Designation

S 2 0 10 0 S 2 0 10 3 S 20 15 3 S 2 0 50 0 S 3 0 10 0 S 3 0 10 3 S 30 15 3 S 3 0 20 0 S 3 0 40 0 S 3 0 40 3 S 30 4 51 S 30 45 3 S 3 1 60 0 S 3 1 60 3 S 31 6 51

1 16  and  ⁄ 8  Hard Annealed and 1 ⁄ 16   Thickness #0.050 in. In c l u d e d B e n d A n g l e ,° Bend Factor

180 1 80 1 80 180 18 0 180 180 1 80 1 80 180 180 1 80 18 0 1 80 180 1 80 18 0 1 80 1 80

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

1  ⁄ 4  Hard Thickness #0.050 in. In c l u d e d B e n d A n g l e ,° Bend Factor

180 1 80 1 80 180 18 0 180 180 1 80 1 80 18 0 180 180 1 80 18 0 1 80 180 1 80 18 0 90

1 1 .5 1. 5 2 1 1 1 1 .5 1. 5 1 1 1 2 1 2 2 2 1 2

1  ⁄ 2  Hard Thickness #0.050 in. In c l u d e d B e n d A n g l e ,° Bend Factor

180 1 80 1 80 180 180 1 80 1 80 180 180 1 80 18 0 1 80 180 1 80 18 0

2 2 2 2 2 2 2 2 2 3 2 3 3 3 2

 ⁄ 4  Hard Thickness #0.050 in. In c l u d e d B e n d A n g l e ,° Bend Factor

Thickness >0.050 to #0.1874 in. In c l u d e d B e n d A n g l e ,° Bend Factor 1 80 18 0 1 80 1 80 1 80 1 80 1 80 18 0 1 80 1 80 1 80 18 0 1 80 1 80 1 80 18 0 1 80 1 80 1 80

1 1 1 1 1 1 1 1 1 1 1 2 1 2 2 2 1 1 2

Thickness >0.050 to #0.1874 in. In c l u d e d B e n d A n g l e ,° Bend Factor 90 135 13 5 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90

2 1 .5 1. 5 2 2 2 2 1. 5 1 .5 2 2 2 3 2 3 2 3 2 2

Thickness >0.050 to #0.1874 in. In c l u d e d B e n d A n g l e ,° Bend Factor 90 13 5 1 35 90 90 90 90 90 90 90 90 90 90 90 90

2 2 2 2 2 2 2 2 2 3 2 3 3 3 2

3

Type

20 1 20 5 30 1 30 2

UNS Designation

S 2 0 10 0 S 2 0 50 0 S 3 0 10 0 S 3 0 20 0 Type

UNS Designation

180 180 180 180

3 3 3 4

Full Hard Thickness #0.050 in. In c l u d e d B e n d A n g l e ,° Bend Factor

5

Thickness >0.050 to #0.1874 in. In c l u d e d B e n d A n g l e ,° Bend Factor 90 90 90 90

3 3 3 5

Thickness >0.050 to #0.1874 in. In c l u d e d B e n d A n g l e ,° Bend Factor

A666 − 15 20 1 20 5 30 1 30 2

S 2 0 10 0 S 2 0 50 0 S 3 0 10 0 S 3 0 20 0 Type

30 1 ...

UNS Designation

S 3 0 10 0 S30116

180 180 180 180

4 4 4 6

Super Full Hard Thickness #0.050 in. In c l u d e d B e n d A n g l e ,° Bend Factor Not Required Not Required

Not Required Not Required

6

90 90 90 90

5 5 5 8

Thickness >0.050 to #0.1874 in. In c l u d e d B e n d A n g l e ,° Bend Factor Not Required Not Required

Not Required Not Required

A666 − 15 TABLE 4 V-Block Bend Requirements Type 2 01 2 01 L 2 01 LN 2 02 2 05 3 01 3 01 L 3 01 LN ... 3 02 3 04 3 04 L 3 04 N 3 04 LN 3 16 3 16 L 3 16 N

UNS Designation S 20 1 00 S 20 10 3 S 20 1 53 S 20 2 00 S 20 5 00 S 30 1 00 S 30 10 3 S 30 1 53 S30116 S 30 2 00 S 30 4 00 S 30 40 3 S 3 04 5 1 S 30 4 53 S 31 6 00 S 31 60 3 S 3 16 5 1

Annealed and 1 ⁄ 8  Hard   Thickness #0.050 in. In c l u d e d B e n d A n g l e ,° Bend Factor 135 1 35 135 135 135 135 1 35 135 13 5 135 135 1 35 13 5 135 135 1 35 13 5

2 2 2 4 2 2 2 2 2 2 2 5 3 4 5 6 5

 ⁄ 4  Hard Thickness #0.050 in. In c l u d e d B e n d A n g l e ,° Bend Factor

Thickness >0.050 to #0.1874 in. In c l u d e d B e n d A n g l e ,° Bend Factor 1 35 13 5 1 35 1 35 1 35 1 35 13 5 1 35 135 1 35 1 35 13 5 1 35 1 35 1 35 13 5 1 35

3 3 3 4 3 3 3 3 3 3 3 6 4 5 6 7 6

1

Type

2 01 2 01 L 2 01 LN 2 05 3 01 3 01 L 3 01 LN 3 02 3 04 3 04 L 3 04 N 3 04 LN 3 16 3 16 L 3 16 N Type

2 01 2 01 L 2 01 LN 2 05 3 01 3 01 L 3 01 LN 3 02 3 04 3 04 L 3 04 N 3 04 LN 3 16 3 16 L 3 16 N Type

2 01 2 05 3 01 3 02

S 20 1 00 S 20 10 3 S 20 1 53 S 20 5 00 S 30 1 00 S 30 10 3 S 30 1 53 S 30 2 00 S 30 4 00 S 30 40 3 S 3 04 5 1 S 30 4 53 S 31 6 00 S 31 60 3 S 3 16 5 1 UNS Designation

S 20 1 00 S 20 10 3 S 20 1 53 S 20 5 00 S 30 1 00 S 30 10 3 S 30 1 53 S 30 2 00 S 30 4 00 S 30 40 3 S 3 04 5 1 S 30 4 53 S 31 6 00 S 31 60 3 S 3 16 5 1 UNS Designation

S 20 1 00 S 20 5 00 S 30 1 00 S 30 2 00 Type

2 01 2 05 3 01 3 02

UNS Designation

UNS Designation

S 20 1 00 S 20 5 00 S 30 1 00 S 30 2 00

135 1 35 135 135 135 1 35 135 135 135 1 35 13 5 135 135 1 35 13 5

2 2 2 2 2 2 2 2 2 5 3 4 5 6 5

1  ⁄ 2  Hard Thickness #0.050 in. In c l u d e d B e n d A n g l e ,° Bend Factor

135 1 35 135 135 135 1 35 135 135 135 1 35 13 5 135 135 1 35 13 5

4 4 4 4 4 4 4 4 4 7 5 6 7 8 7

3  ⁄ 4  Hard Thickness #0.050 in. In c l u d e d B e n d A n g l e ,° Bend Factor

135 135 135 135

6 6 6 8

Full Hard Thickness #0.050 in. In c l u d e d B e n d A n g l e ,° Bend Factor 135 135 135 135

6 6 6 8 Super Full Hard

7

Thickness >0.050 to #0.1874 in. In c l u d e d B e n d A n g l e ,° Bend Factor 1 35 13 5 1 35 1 35 1 35 13 5 1 35 1 35 1 35 13 5 1 35 1 35 1 35 13 5 1 35

3 3 3 3 3 3 3 3 3 6 4 5 6 7 6

Thickness >0.050 to #0.1874 in. In c l u d e d B e n d A n g l e ,° Bend Factor 1 35 13 5 1 35 1 35 1 35 13 5 1 35 1 35 1 35 13 5 1 35 1 35 1 35 13 5 1 35

4 4 4 4 4 4 4 4 4 8 6 7 8 9 8

Thickness >0.050 to #0.1874 in. In c l u d e d B e n d A n g l e ,° Bend Factor 1 35 1 35 1 35 1 35

7 7 7 9

Thickness >0.050 to #0.1874 in. In c l u d e d B e n d A n g l e ,° Bend Factor 1 35 1 35 1 35 1 35

8 8 8 10

A666 − 15 Type

3 01 ...

UNS Designation

S 30 1 00 S30116

Thickness #0.050 in. In c l u d e d B e n d A n g l e ,° Bend Factor Not Required Not Required

Not Required Not Required

Thickness >0.050 to #0.1874 in. In c l u d e d B e n d A n g l e ,° Bend Factor Not Required Not Required

Not Required Not Required

SUMMARY OF CHANGES Committee  A01has Committee A01 has identified the location of selected changes to this standard since the last issue (A666 – 10) that may impact the use of this standard. (March 1, 2015.) (1)  Scope and keywords revised to remove “architectural” and emphasize “structural.” ASTM International International takes no positi position on respecting the validi validity ty of any patent rights assert asserted ed in connec connection tion with any item mentio mentioned  ned  in this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk  of infringement of such rights, are entirely their own responsibility. This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years and  if not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standards  and should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of the  responsible respon sible technical technical committee, which you may attend. If you feel that your comments have not receiv received ed a fair hearing you should  make your views known to the ASTM Committee on Standards, at the address shown below. This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the above  address addr ess or at 610610-832832-9585 9585 (pho (phone), ne), 610610-832832-9555 9555 (fax (fax), ), or serv service@ ice@astm astm.org .org (e-m (e-mail) ail);; or thro through ugh the ASTM webs website  ite  (www.astm. (www .astm.org). org). Permission Permission rights to photocopy the standa standard rd may also be secure secured d from the Copyri Copyright ght Clearance Center, Center, 222  Rosewood Drive, Danvers, MA 01923, Tel: (978) 646-2600; http://www.copyright.com/ 

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