ASTM A666-10

Designation: A666 − 10 Standard Specification for Annealed or Cold-Worked Austenitic Stainless Steel Sheet, Strip, Plate, and Flat Bar1 This standard is issued under the fixed designation A666; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last 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. Scope* 1.1 This specification covers austenitic stainless steels in the annealed and normally required cold-worked conditions for various structural, architectural, pressure vessel, magnetic, cryogenic, and heat-resisting applications. (This revision of Specification A666 replaces prior Specifications A412 and A177.) 1.2 The application of this specification, or the use of material covered by this specification does not automatically allow usage in pressure vessel applications. Only annealed conditions of grades specifically approved by the ASME code are permitted for pressure vessel use. 1.3 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only. 2. Referenced Documents 2.1 ASTM Standards:2 A370 Test Methods and Definitions for Mechanical Testing of Steel Products A240/A240M Specification for Chromium and Chromium- Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications A480/A480M Specification for General Requirements for Flat-Rolled Stainless and Heat-Resisting Steel Plate, Sheet, and Strip A484/A484M Specification for General Requirements for Stainless Steel Bars, Billets, and Forgings 3. Material Test Report and Certification 3.1 In addition to the requirements of Specification A480/ A480M, the cold-worked condition (annealed, 1⁄4 H, 1⁄2 H, and so forth) shall be noted. 4. Chemical Composition 4.1 The steel shall conform to the requirements as to chemical composition specified in Table 1, and shall conform to applicable requirements specified in the current edition of Specification A480/A480M. 5. Mechanical Properties 5.1 The material shall conform to the mechanical properties specified in Table 2 and Table 3, or Table 2 and Table 4. 6. General Requirements 6.1 The following requirements for orders for material furnished under this specification shall conform to the appli- cable requirements of the current edition of Specification A480/A480M or A484/A484M: 6.1.1 Definitions, 6.1.2 General requirements for delivery, 6.1.3 Ordering information, 6.1.4 Process, 6.1.5 Special tests, 6.1.6 Heat treatment, 6.1.7 Dimensions and permissible variations, 6.1.8 Workmanship, finish and appearance, 6.1.9 Number of tests/test methods, 6.1.10 Specimen preparation, 6.1.11 Retreatment, 6.1.12 Inspection, 6.1.13 Rejection and rehearing, 6.1.14 Material test report, 6.1.15 Certification, and 6.1.16 Packaging, marking, and loading. 7. Sampling 7.1 Tension and bend-test specimens of sheet, strip, and plate products shall be selected from finished material and shall be selected in the transverse direction, except in the case of 1 This specification is under the jurisdiction of ASTM Committee A01 on Steel, Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee A01.17 on Flat-Rolled and Wrought Stainless Steel. Current edition approved Sept. 1, 2010. Published September 2010. Originally approved in 1972. Last previous edition approved in 2003 as A666 – 03. DOI: 10.1520/A0666-10. 2 For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards volume information, refer to the standard’s Document Summary page on the ASTM website. *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 strip under 9 in. (229 mm) in width, in which case tension test specimens shall be selected in the longitudinal direction. 7.2 Flat bar tension and bend-test specimens shall be se- lected from the finished material and shall be in the longitudi- nal direction. 7.3 Corrosion samples, if required, shall be taken from material after final annealing and descaling and prior to cold working. 8. Number of Tests 8.1 For cold-worked product produced in coil form, one tension test shall be made from each end of each coil. One bend test shall be made from one end of each coil. 8.2 For cold-worked flat bar and plate 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 charge or under the same conditions in a continuous furnace. 8.3 Annealed material produced to Table 2 requirements shall be tested in accordance with Specification A480/A480M. 9. Test Methods 9.1 Tension Test: 9.1.1 The yield strength shall be determined by the offset method as described in Test Methods and Definitions A370. An alternative method of determining field strength may be used based on the following total extension under load: Yield Strength, min. psi Total Extension under Load in 2 in. Gage Length, incl. 45 000 0.0071 75 000 0.0098 110 000 0.0125 135 000 0.0144 140 000 0.0148 9.1.2 The requirement of this specification for yield strength will be considered as having been fulfilled if the extension under load for the specified yield strength does not exceed the specified values. The values 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. 9.2 Bend Test: 9.2.1 Bend-test specimens shall withstand cold bending without cracking when subjected to either the free-bend method or the controlled-bend (V-block) method at the condi- tion specified by Table 3 or Table 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-bend 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 Controlled-bend (V-block) test specimens shall 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 surface at the bend areas to impart the desired shape and diameter of bend to the specimen. 10. Keywords 10.1 austenitic stainless steel; cold-worked stainless steel; stainless steel flat bar; stainless steel plate; stainless steel sheet; stainless steel strip TABLE 1 Chemical Composition RequirementsA Type UNS Designation Composition, %B Carbon Manganese Phosphorus Sulfur Silicon Chromium Nickel Other Elements 201 S20100 0.15 5.5–7.5 0.060 0.030 0.75 16.0–18.0 3.5–5.5 N 0.25 201L S20103 0.03 5.5–7.5 0.045 0.030 0.75 16.0–18.0 3.5–5.5 N 0.25 201LN S20153 0.03 6.4–7.5 0.045 0.015 0.75 16.0–17.5 4.0–5.0 N 0.10–0.25 Cu 1.00 202 S20200 0.15 7.5–10.0 0.060 0.030 0.75 17.0–19.0 4.0–6.0 N 0.25 . . . S20400 0.030 7.0–9.0 0.040 0.030 1.00 15.0–17.0 1.50–3.00 N 0.15–0.30 205 S20500 0.12–0.25 14.0–15.0 0.060 0.030 0.75 16.5–18.0 1.00–1.75 N 0.32–0.40 301 S30100 0.15 2.00 0.045 0.030 1.00 16.0–18.0 6.0–8.0 N 0.10 301L S30103 0.03 2.00 0.045 0.030 1.00 16.0–18.0 6.0–8.0 N 0.20 301LN S30153 0.03 2.00 0.045 0.030 1.00 16.0–18.0 6.0–8.0 N 0.07–0.20 301Si S30116 0.15 2.00 0.045 0.030 1.00–1.35 16.0–18.0 6.0–8.0 N 0.20, Mo 1.00 302 S30200 0.15 2.00 0.045 0.030 0.75 17.0–19.0 8.0–10.0 304 S30400 0.08 2.00 0.045 0.030 0.75 18.0–20.0 8.0–10.5 N 0.10 304L S30403 0.030 2.00 0.045 0.030 0.75 18.0–20.0 8.0–12.0 N 0.10 304N S30451 0.08 2.00 0.045 0.030 0.75 18.0–20.0 8.0–10.5 N 0.10–0.16 304LN S30453 0.030 2.00 0.045 0.030 0.75 18.0–20.0 8.0–12.0 N 0.10–0.16 316 S31600 0.08 2.00 0.045 0.030 0.75 16.0–18.0 10.0–14.0 Mo 2.00–3.00 316L S31603 0.030 2.00 0.045 0.030 0.75 16.0–18.0 10.0–14.0 Mo 2.00–3.00 316N S31651 0.08 2.00 0.045 0.030 0.75 16.0–18.0 10.0–14.0 Mo 2.00–3.00 N 0.10–0.16 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 N 0.15–0.40 N 0.35–0.50 A 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. B Maximum unless otherwise indicated. A666 − 10 2 TABLE 2 Tensile Property RequirementsA Annealed Type UNSDesignation Tensile Strength, min Yield Strength, min Elongation in 2 in. or 50 mm, min, % Hardness, max psi MPa psi MPa Brinell Rockwell B 201–1B S20100 75 000 515 38 000 260 40 217 95 Class 1 201–2 S20100 95 000 655 45 000 310 40 241 100 Class 2 201L S20103 95 000 655 38 000 260 40 217 95 201LN S20153 95 000 655 45 000 310 45 241 100 202 S20200 90 000 620 38 000 260 40 241 . . . . . . S20400 95 000 655 48 000 330 35 241 100 205 S20500 115 000 790 65 000 450 40 241 100 301 S30100 75 000 515 30 000 205 40 217 95 301L S30103 80 000 550 32 000 220 45 241 100 301LN S30153 80 000 550 35 000 240 45 241 100 302 S30200 75 000 515 30 000 205 40 201 92 . . . S30116 75 000 515 30 000 205 40 217 95 304 S30400 75 000 515 30 000 205 40 201 92 304L S30403 70 000 485 25 000 170 40 201 92 304N S30451 80 000 550 35 000 240 30 217 95 304LN S30453 75 000 515 30 000 205 40 217 95 316 S31600 75 000 515 30 000 205 40 217 95 316L S31603 70 000 485 25 000 170 40 217 95 316N S31651 80 000 550 35 000 240 35 217 95 XM–11 S21904 Sheet, Strip 100 000 690 60 000 415 40 . . . . . . Plate 90 000 620 50 000 345 45 . . . . . . XM–14 S21460 105 000 725 55 000 380 40 . . . . . . 1⁄16 HardC Type UNSDesignation Tensile Strength, min Yield Strength, min Elongation in 2 in. or 50 mm, min, % psi MPa psi MPa <0.015 in. $0.015 to #0.030 in. >0.030 in. 201 S20100 PSSD 95 000 655 45 000 310 40 40 40 FBE 75 000 515 40 000 275 . . . . . . 40 201L S20103 100 000 690 50 000 345 40 40 40 201LN S20153 100 000 690 50 000 345 40 40 40 205 S20500 115 000 790 65 000 450 40 40 40 301 S30100 90 000 620 45 000 310 40 40 40 301L S30103 100 000 690 50 000 345 40 40 40 301LN S30153 100 000 690 50 000 345 40 40 40 302 S30200 PSS 85 000 585 45 000 310 40 40 40 FB 90 000 620 45 000 310 . . . . . . 40 304 S30400 PSS 80 000 550 45 000 310 35 35 35 FB 90 000 620 45 000 310 . . . . . . 40 304L S30403 80 000 550 45 000 310 40 40 40 304N S30451 90 000 620 45 000 310 40 40 40 304LN S30453 90 000 620 45 000 310 40 40 40 316 S31600 PSS 85 000 585 45 000 310 35 35 35 FB 90 000 620 45 000 310 . . . . . . 40 316L S31603 85 000 585 45 000 310 35 35 35 316N S31651 90 000 620 45 000 310 35 35 35 1⁄8 HardC Type UNS Designation Tensile Strength, min Yield Strength, min Elongation in 2 in. or 50 mm, min, % psi MPa psi MPa <0.015 in. $0.015 to #0.030 in. >0.030 in. 201 S20100 100 000 690 55 000 380 45 45 45 201L S20103 105 000 725 55 000 380 35 35 35 201LN S20153 110 000 760 60 000 415 35 35 35 205 S20500 115 000 790 65 000 450 40 40 40 301 S30100 100 000 690 55 000 380 40 40 40 301L S30103 110 000 760 60 000 415 35 35 35 301LN S30153 110 000 760 60 000 415 35 35 35 302 S30200 100 000 690 55 000 380 35 35 35 304 S30400 100 000 690 55 000 380 35 35 35 304L S30403 100 000 690 55 000 380 30 30 30 304N S30451 100 000 690 55 000 380 37 37 37 304LN S30453 100 000 690 55 000 380 33 33 33 316 S31600 100 000 690 55 000 380 30 30 30 316L S31603 100 000 690 55 000 380 25 25 25 316N S31651 100 000 690 55 000 380 32 32 32 1⁄4 Hard A666 − 10 3 Type UNSDesignation Tensile Strength, min Yield Strength, min Elongation in 2 in. or 50 mm, min, % psi MPa psi MPa <0.015 in. $0.015 to #0.030 in. >0.030 in. 201 S20100 125 000 860 75 000 515 25 25 25 201L S20103 120 000 825 75 000 515 25 25 25 201LN S20153 120 000 825 75 000 515 25 25 25 202 S20200 125 000 860 75 000 515 12 12 . . . . . . S20400 140 000 965 100 000 960 20 20 20 205 S20500 125 000 860 75 000 515 45 45 45 301 S30100 125 000 860 75 000 515 25 25 25 301L S30103 120 000 825 75 000 515 25 25 25 301LN S30153 120 000 825 75 000 515 25 25 25 302 S30200 125 000 860 75 000 515 10 10 12 304 S30400 125 000 860 75 000 515 10 10 12 304L S30403 125 000 860 75 000 515 8 8 10 304N S30451 125 000 860 75 000 515 12 12 12 304LN S30453 125 000 860 75 000 515 10 10 12 316 S31600 125 000 860 75 000 515 10 10 10 316L S31603 125 000 860 75 000 515 8 8 8 316N S31651 125 000 860 75 000 515 12 12 12 XM-11 S21904 130 000 895 115 000 795 15 15 . . . 1⁄2 Hard Type UNSDesignation Tensile Strength, min Yield Strength, min Elongation in 2 in. or 50 mm, min, % psi MPa psi Mpa <0.015 in. $0.015 to #0.030 in. >0.030 in. 201 S20100 150 000 1035 110 000 760 15 18 18 201L S20103 135 000 930 100 000 690 22 22 20 201LN S20153 135 000 930 100 000 690 22 22 20 205 S20500 150 000 1035 110 000 760 15 18 18 301 S30100 150 000 1035 110 000 760 15 18 18 301L S30103 135 000 930 100 000 690 20 20 20 301LN S30153 135 000 930 100 000 690 20 20 20 302 S30200 150 000 1035 110 000 760 9 10 10 304 S30400 150 000 1035 110 000 760 6 7 7 304L S30403 150 000 1035 110 000 760 5 6 6 304N S30451 150 000 1035 110 000 760 6 8 8 304LN S30453 150 000 1035 110 000 760 6 7 7 316 S31600 150 000 1035 110 000 760 6 7 7 316L S31603 150 000 1035 110 000 760 5 6 6 316N S31651 150 000 1035 110 000 760 6 8 8 3⁄4 Hard Type UNSDesignation Tensile Strength, min Yield Strength, min Elongation in 2 in. or 50 mm, min, % psi MPa psi MPa <0.015 in. $0.015 to #0.030 in. >0.030 in. 201 S20100 175 000 1205 135 000 930 10 12 12 205 S20500 175 000 1205 135 000 930 15 15 15 301 S30100 175 000 1205 135 000 930 10 12 12 302 S30200 175 000 1205 135 000 930 5 6 6 Full Hard Type UNSDesignation Tensile Strength, min Yield Strength, min Elongation in 2 in. or 50 mm, min, % psi MPa psi MPa <0.015 in. $0.015 to #0.030 in. >0.030 in. 201 S20100 185 000 1275 140 000 965 8 9 9 205 S20500 185 000 1275 140 000 965 10 10 10 301 S30100 185 000 1275 140 000 965 8 9 9 302 S30200 185 000 1275 140 000 965 3 4 4 Super Full Hard Type UNS Designation Tensile Strength, min Yield Strength, min Elongation in 2 in. or 50 mm, min, % psi MPa psi MPa <0.015 in. $0.015 to #0.030 in. >0.030 in. 301 S30100 270 000 1860 260 000 1790 . . . . . . . . . . . . S30116 270 000 1860 260 000 1790 . . . . . . . . . A 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 tensile strength can be the controlling factor in meeting the properties. The noncontrolling factor normally will exceed considerably the specified 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 material that naturally meets mechanical properties may be applied. D PSS means plate, strip, sheet. E FB means flat bar. A666 − 10 4 TABLE 3 Free Bend Requirements Annealed and 1⁄16 and 1⁄8 Hard Type UNS Designation Thickness #0.050 in. Thickness >0.050 to #0.1874 in.Included Bend Angle,° Bend Factor Included Bend Angle,° Bend Factor 201 S20100 180 1 180 1 201L S20103 180 1 180 1 201LN S20153 180 1 180 1 202 S20200 180 1 180 1 . . . S20400 180 1 180 1 205 S20500 180 1 180 1 301 S30100 180 1 180 1 301L S30103 180 1 180 1 301LN S30133 180 1 180 1 302 S30200 180 1 180 1 304 S30400 180 1 180 1 304L S30403 180 1 180 2 304N S30451 180 1 180 1 304LN S30453 180 1 180 2 316 S31600 180 1 180 2 316L S31603 180 1 180 2 316N S31651 180 1 180 1 XM-11 S21904 180 1 180 1 XM-14 S21460 180 1 180 2 1⁄4 Hard Type UNS Designation Thickness #0.050 in. Thickness >0.050 to #0.1874 in. Included Bend Angle,° Bend Factor Included Bend Angle,° Bend Factor 201 S20100 180 1 90 2 201L S20103 180 1.5 135 1.5 201LN S20153 180 1.5 135 1.5 202 S20200 180 2 90 2 . . . S20400 180 1 90 2 205 S20500 180 1 90 2 301 S30100 180 1 90 2 301L S30103 180 1.5 90 1.5 301LN S30153 180 1.5 90 1.5 . . . S30116 180 1 90 2 302 S30200 180 1 90 2 304 S30400 180 1 90 2 304L S30403 180 2 90 3 304N S30451 180 1 90 2 304LN S30453 180 2 90 3 316 S31600 180 2 90 2 316L S31603 180 2 90 3 316N S31651 180 1 90 2 XM-11 S21904 90 2 90 2 1⁄2 Hard Type UNS Designation Thickness #0.050 in. Thickness >0.050 to #0.1874 in. Included Bend Angle,° Bend Factor Included Bend Angle,° Bend Factor 201 S20100 180 2 90 2 201L S20103 180 2 135 2 201LN S20153 180 2 135 2 205 S20500 180 2 90 2 301 S30100 180 2 90 2 301L S30103 180 2 90 2 301LN S30153 180 2 90 2 302 S30200 180 2 90 2 304 S30400 180 2 90 2 304L S30403 180 3 90 3 304N S30451 180 2 90 2 304LN S30453 180 3 90 3 316 S31600 180 3 90 3 316L S31603 180 3 90 3 316N S31651 180 2 90 2 3⁄4 Hard Type UNS Designation Thickness #0.050 in. Thickness >0.050 to #0.1874 in. Included Bend Angle,° Bend Factor Included Bend Angle,° Bend Factor 201 S20100 180 3 90 3 205 S20500 180 3 90 3 301 S30100 180 3 90 3 302 S30200 180 4 90 5 Full Hard Type UNS Designation Thickness #0.050 in. Thickness >0.050 to #0.1874 in. Included Bend Angle,° Bend Factor Included Bend Angle,° Bend Factor A666 − 10 5 201 S20100 180 4 90 5 205 S20500 180 4 90 5 301 S30100 180 4 90 5 302 S30200 180 6 90 8 Super Full Hard Type UNS Designation Thickness #0.050 in. Thickness >0.050 to #0.1874 in. Included Bend Angle,° Bend Factor Included Bend Angle,° Bend Factor 301 S30100 Not Required Not Required Not Required Not Required . . . S30116 Not Required Not Required Not Required Not Required A666 − 10 6 TABLE 4 V-Block Bend Requirements Annealed and 1⁄8 Hard Type UNS Designation Thickness #0.050 in. Thickness >0.050 to #0.1874 in.Included Bend Angle,° Bend Factor Included Bend Angle,° Bend Factor 201 S20100 135 2 135 3 201L S20103 135 2 135 3 201LN S20153 135 2 135 3 202 S20200 135 4 135 4 205 S20500 135 2 135 3 301 S30100 135 2 135 3 301L S30103 135 2 135 3 301LN S30153 135 2 135 3 . . . S30116 135 2 135 3 302 S30200 135 2 135 3 304 S30400 135 2 135 3 304L S30403 135 5 135 6 304N S30451 135 3 135 4 304LN S30453 135 4 135 5 316 S31600 135 5 135 6 316L S31603 135 6 135 7 316N S31651 135 5 135 6 1⁄4 Hard Type UNS Designation Thickness #0.050 in. Thickness >0.050 to #0.1874 in. Included Bend Angle,° Bend Factor Included Bend Angle,° Bend Factor 201 S20100 135 2 135 3 201L S20103 135 2 135 3 201LN S20153 135 2 135 3 205 S20500 135 2 135 3 301 S30100 135 2 135 3 301L S30103 135 2 135 3 301LN S30153 135 2 135 3 302 S30200 135 2 135 3 304 S30400 135 2 135 3 304L S30403 135 5 135 6 304N S30451 135 3 135 4 304LN S30453 135 4 135 5 316 S31600 135 5 135 6 316L S31603 135 6 135 7 316N S31651 135 5 135 6 1⁄2 Hard Type UNS Designation Thickness #0.050 in. Thickness >0.050 to #0.1874 in. Included Bend Angle,° Bend Factor Included Bend Angle,° Bend Factor 201 S20100 135 4 135 4 201L S20103 135 4 135 4 201LN S20153 135 4 135 4 205 S20500 135 4 135 4 301 S30100 135 4 135 4 301L S30103 135 4 135 4 301LN S30153 135 4 135 4 302 S30200 135 4 135 4 304 S30400 135 4 135 4 304L S30403 135 7 135 8 304N S30451 135 5 135 6 304LN S30453 135 6 135 7 316 S31600 135 7 135 8 316L S31603 135 8 135 9 316N S31651 135 7 135 8 3⁄4 Hard Type UNS Designation Thickness #0.050 in. Thickness >0.050 to #0.1874 in. Included Bend Angle,° Bend Factor Included Bend Angle,° Bend Factor 201 S20100 135 6 135 7 205 S20500 135 6 135 7 301 S30100 135 6 135 7 302 S30200 135 8 135 9 Full Hard Type UNS Designation Thickness #0.050 in. Thickness >0.050 to #0.1874 in. Included Bend Angle,° Bend Factor Included Bend Angle,° Bend Factor 201 S20100 135 6 135 8 205 S20500 135 6 135 8 301 S30100 135 6 135 8