Designation: A240/A240M − 15a

Standard Specification for

Chromium and Chromium-Nickel Stainless Steel Plate,
Sheet, and Strip for Pressure Vessels and for General
Applications1
This standard is issued under the fixed designation A240/A240M; 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 U.S. Department of Defense.

1. Scope* Flat-Rolled Stainless and Heat-Resisting Steel Plate,

2
1.1 This specification covers chromium, chromium-nickel, Sheet, and Strip
and chromium-manganese-nickel stainless steel plate, sheet, A923 Test Methods for Detecting Detrimental Intermetallic
and strip for pressure vessels and for general applications Phase in Duplex Austenitic/Ferritic Stainless Steels
including architectural, building, construction, and aesthetic E112 Test Methods for Determining Average Grain Size
applications. E527 Practice for Numbering Metals and Alloys in the
Unified Numbering System (UNS)
1.2 The values stated in either SI units or inch-pound units 2.2 SAE Standard:4
are to be regarded separately as standard. The values stated in J 1086 Practice for Numbering Metals and Alloys (UNS)
each system may not be exact equivalents; therefore, each
system shall be used independently of the other. Combining 3. General Requirements
values from the two systems may result in non-conformance 3.1 The following requirements for orders for material
with the standard. furnished under this specification shall conform to the appli-
1.3 This specification is expressed in both inch-pound and cable requirements of the current edition of Specification
SI units. However, unless the order specifies the applicable A480/A480M.
“M” specification designation (SI units), the material shall be 3.1.1 Definitions;
furnished in inch-pound units. 3.1.2 General requirements for delivery;
1.4 This standard does not purport to address all of the 3.1.3 Ordering information;
safety concerns, if any, associated with its use. It is the 3.1.4 Process;
responsibility of the user of this standard to establish appro- 3.1.5 Special tests;
priate safety and health practices and determine the applica- 3.1.6 Heat treatment;
bility of regulatory limitations prior to use. 3.1.7 Dimensions and permissible variations;
3.1.8 Workmanship, finish and appearance;
2. Referenced Documents 3.1.9 Number of tests/test methods;
3.1.10 Specimen preparation;
2.1 ASTM Standards:3
3.1.11 Retreatment;
A370 Test Methods and Definitions for Mechanical Testing
3.1.12 Inspection;
of Steel Products
3.1.13 Rejection and rehearing;
A480/A480M Specification for General Requirements for
3.1.14 Material test report;
3.1.15 Certification; and
1
3.1.16 Packaging, marking, and loading.
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
4. Chemical Composition
A01.17 on Flat-Rolled and Wrought Stainless Steel.
Current edition approved March 1, 2015. Published March 2015. Originally 4.1 The steel shall conform to the requirements as to
approved in 1940. Last previous edition approved in 2015 as A240/A240M – 15.
chemical composition specified in Table 1 and shall conform to
DOI: 10.1520/A0240_A0240M-15A.
2
For ASME Boiler and Pressure Vessel Code applications see related Specifi- applicable requirements specified in Specification A480/
cation SA-240 in Section II of that Code. A480M.
3
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
4
Standards volume information, refer to the standard’s Document Summary page on Available from Society of Automotive Engineers (SAE), 400 Commonwealth
the ASTM website. Dr., Warrendale, PA 15096-0001, http://www.sae.org.

*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
 TABLE 1 Chemical Composition Requirements, %A
UNS C D Phos- Other
Type Carbon Manganese Sulfur Silicon Chromium Nickel Molybdenum Nitrogen Copper
DesignationB phorus ElementsE, F
Austenitic (Chromium-Nickel) (Chromium-Manganese-Nickel)
N08020 ... 0.07 2.00 0.045 0.035 1.00 19.0–21.0 32.0–38.0 2.00–3.00 ... 3.00–4.00 Cb 8×C min,
1.00 max
N08367 ... 0.030 2.00 0.040 0.030 1.00 20.0–22.0 23.5–25.5 6.0–7.0 0.18–0.25 0.75 ...
N08700 ... 0.04 2.00 0.040 0.030 1.00 19.0–23.0 24.0–26.0 4.3–5.0 ... 0.50 Cb 8×C min
0.40 max
N08800 800G 0.10 1.50 0.045 0.015 1.00 19.0–23.0 30.0–35.0 ... ... 0.75 FeH 39.5 min
Al 0.15–0.60
Ti 0.15–0.60
N08810 800HG 0.05–0.10 1.50 0.045 0.015 1.00 19.0–23.0 30.0–35.0 ... ... 0.75 FeH 39.5 min
Al 0.15–0.60
Ti 0.15–0.60
N08811 ... 0.06–0.10 1.50 0.040 0.015 1.00 19.0–23.0 30.0–35.0 ... ... 0.75 FeH 39.5 min
TiI 0.25–0.60
AlI 0.25–0.60
N08904 904LG 0.020 2.00 0.045 0.035 1.00 19.0–23.0 23.0–28.0 4.00–5.00 0.10 1.00–2.00 ...
N08925 ... 0.020 1.00 0.045 0.030 0.50 19.0–21.0 24.0–26.0 6.00–7.00 0.10–0.20 0.80–1.50 ...
N08926 ... 0.020 2.00 0.030 0.010 0.50 19.0–21.0 24.0–26.0 6.00–7.00 0.15–0.25 0.50–1.50 ...
S20100 201 0.15 5.50–7.50 0.060 0.030 1.00 16.0–18.0 3.5–5.5 ... 0.25 ... ...
S20103 ... 0.03 5.50–7.50 0.045 0.030 0.75 16.0–18.0 3.5–5.5 ... 0.25 ... ...
S20153 ... 0.03 6.40–7.50 0.045 0.015 0.75 16.0–17.5 4.0–5.0 ... 0.10–0.25 1.00 ...
S20161 ... 0.15 4.00–6.00 0.040 0.040 3.00–4.00 15.0–18.0 4.0–6.0 ... 0.08–0.20 ... ...
S20200 202 0.15 7.50–10.00 0.060 0.030 1.00 17.0–19.0 4.0–6.0 ... 0.25 ... ...
S20400 ... 0.030 7.00–9.00 0.040 0.030 1.00 15.0–17.0 1.50–3.00 ... 0.15–0.30 ... ...
S20431 ... 0.12 5.00–7.00 0.045 0.030 1.00 17.0–18.0 2.0–4.0 ... 0.10–0.25 1.50–3.50 ...
S20432 ... 0.08 3.00–5.00 0.045 0.030 1.00 17.0–18.0 4.0–6.0 ... 0.05–0.20 2.00–3.00 ...
S20433 ... 0.08 5.50–7.50 0.045 0.030 1.00 17.0–18.0 3.5–5.5 ... 0.10–0.25 1.50–3.50 ...
S20910 XM-19J 0.06 4.00–6.00 0.040 0.030 0.75 20.5–23.5 11.5–13.5 1.50–3.00 0.20–0.40 ... Cb 0.10–0.30

2
V 0.10–0.30
S21400 XM-31J 0.12 14.00–16.00 0.045 0.030 0.30–1.00 17.0–18.5 1.00 ... 0.35 min ... ...
S21600 XM-17J 0.08 7.50–9.00 0.045 0.030 0.75 17.5–22.0 5.0–7.0 2.00–3.00 0.25–0.50 ... ...
S21603 XM-18J 0.03 7.50–9.00 0.045 0.030 0.75 17.5–22.0 5.0–7.0 2.00–3.00 0.25–0.50 ... ...
S21640 ... 0.08 3.50–6.50 0.060 0.030 1.00 17.5–19.5 4.0–6.5 0.50–2.00 0.08–0.30 ... Cb 0.10–1.00
S21800 ... 0.10 7.00–9.00 0.060 0.030 3.5–4.5 16.0–18.0 8.0–9.0 ... 0.08–0.18 ... ...
S21904 XM-11J 0.04 8.00–10.00 0.060 0.030 0.75 19.0–21.5 5.5–7.5 ... 0.15–0.40 ... ...
A240/A240M − 15a

S24000 XM-29J 0.08 11.50–14.50 0.060 0.030 0.75 17.0–19.0 2.3–3.7 ... 0.20–0.40 ... ...
S30100 301 0.15 2.00 0.045 0.030 1.00 16.0–18.0 6.0–8.0 ... 0.10 ... ...
S30103 301LG 0.03 2.00 0.045 0.030 1.00 16.0–18.0 6.0–8.0 ... 0.20 ... ...
S30153 301LNG 0.03 2.00 0.045 0.030 1.00 16.0–18.0 6.0–8.0 ... 0.07–0.20 ... ...
S30200 302 0.15 2.00 0.045 0.030 0.75 17.0–19.0 8.0–10.0 ... 0.10 ... ...
S30400 304 0.07 2.00 0.045 0.030 0.75 17.5–19.5 8.0–10.5 ... 0.10 ... ...
S30403 304L 0.030 2.00 0.045 0.030 0.75 17.5–19.5 8.0–12.0 ... 0.10 ... ...
S30409 304H 0.04–0.10 2.00 0.045 0.030 0.75 18.0–20.0 8.0–10.5 ... ... ... ...
S30415 ... 0.04–0.06 0.80 0.045 0.030 1.00–2.00 18.0–19.0 9.0–10.0 ... 0.12–0.18 ... Ce 0.03–0.08
S30435 ... 0.08 2.00 0.045 0.030 1.00 16.0–18.0 7.0–9.0 ... ... 1.50–3.00 ...
S30441 ... 0.08 2.00 0.045 0.030 1.0–2.0 17.5–19.5 8.0–10.5 ... 0.10 1.5–2.5 Cb 0.1–0.5
W 0.2–0.8
S30451 304N 0.08 2.00 0.045 0.030 0.75 18.0–20.0 8.0–10.5 ... 0.10–0.16 ... ...
S30452 XM-21J 0.08 2.00 0.045 0.030 0.75 18.0–20.0 8.0–10.5 ... 0.16–0.30 ... ...
S30453 304LN 0.030 2.00 0.045 0.030 0.75 18.0–20.0 8.0–12.0 ... 0.10–0.16 ... ...
S30500 305 0.12 2.00 0.045 0.030 0.75 17.0–19.0 10.5–13.0 ... ... ... ...
S30530 ... 0.08 2.00 0.045 0.030 0.50–2.50 17.0–20.5 8.5–11.5 0.75–1.50 ... 0.75–3.50 ...
S30600 ... 0.018 2.00 0.020 0.020 3.7–4.3 17.0–18.5 14.0–15.5 0.20 ... 0.50 ...
S30601 ... 0.015 0.50–0.80 0.030 0.013 5.0–5.6 17.0–18.0 17.0–18.0 0.20 0.05 0.35 ...
S30615 ... 0.16–0.24 2.00 0.030 0.030 3.2–4.0 17.0–19.5 13.5–16.0 ... ... ... Al 0.80–1.50
S30815 ... 0.05–0.10 0.80 0.040 0.030 1.40–2.00 20.0–22.0 10.0–12.0 ... 0.14–0.20 ... Ce 0.03–0.08
S30908 309S 0.08 2.00 0.045 0.030 0.75 22.0–24.0 12.0–15.0 ... ... ... ...
S30909 309HG 0.04–0.10 2.00 0.045 0.030 0.75 22.0–24.0 12.0–15.0 ... ... ... ...
 TABLE 1 Continued
UNS C D Phos- Other
Type Carbon Manganese Sulfur Silicon Chromium Nickel Molybdenum Nitrogen Copper
DesignationB phorus ElementsE, F
S30940 309CbG 0.08 2.00 0.045 0.030 0.75 22.0–24.0 12.0–16.0 ... ... ... Cb 10×C min,
1.10 max
S30941 309HCbG 0.04–0.10 2.00 0.045 0.030 0.75 22.0–24.0 12.0–16.0 ... ... ... Cb 10×C min,
1.10 max
S31008 310S 0.08 2.00 0.045 0.030 1.50 24.0–26.0 19.0–22.0 ... ... ... ...
S31009 310HG 0.04–0.10 2.00 0.045 0.030 0.75 24.0–26.0 19.0–22.0 ... ... ... ...
S31040 310CbG 0.08 2.00 0.045 0.030 1.50 24.0–26.0 19.0–22.0 ... ... ... Cb 10×C min,
1.10 max
S31041 310HCbG 0.04–0.10 2.00 0.045 0.030 0.75 24.0–26.0 19.0–22.0 ... ... ... Cb 10×C min,
1.10 max
S31050 310 MoLNG 0.020 2.00 0.030 0.010 0.50 24.0–26.0 20.5–23.5 1.60–2.60 0.09–0.15 ... ...
S31060 ... 0.05–0.10 1.00 0.040 0.030 0.50 22.0–24.0 10.0–12.5 ... 0.18–0.25 ... Ce + La
0.025–0.070
B 0.001–0.010
S31254 ... 0.020 1.00 0.030 0.010 0.80 19.5–20.5 17.5–18.5 6.0–6.5 0.18–0.25 0.50–1.00 ...
S31266 ... 0.030 2.00–4.00 0.035 0.020 1.00 23.0–25.0 21.0–24.0 5.2–6.2 0.35–0.60 1.00–2.50 W 1.50–2.50
S31277 ... 0.020 3.00 0.030 0.010 0.50 20.5–23.0 26.0–28.0 6.5–8.0 0.30–0.40 0.50–1.50 ...
S31600 316 0.08 2.00 0.045 0.030 0.75 16.0–18.0 10.0–14.0 2.00–3.00 0.10 ... ...
S31603 316L 0.030 2.00 0.045 0.030 0.75 16.0–18.0 10.0–14.0 2.00–3.00 0.10 ... ...
S31609 316H 0.04–0.10 2.00 0.045 0.030 0.75 16.0–18.0 10.0–14.0 2.00–3.00 ... ... ...
S31635 316TiG 0.08 2.00 0.045 0.030 0.75 16.0–18.0 10.0–14.0 2.00–3.00 0.10 ... Ti 5 × (C + N)
min, 0.70 max
S31640 316CbG 0.08 2.00 0.045 0.030 0.75 16.0–18.0 10.0–14.0 2.00–3.00 0.10 ... Cb 10 × C
min, 1.10 max
S31651 316N 0.08 2.00 0.045 0.030 0.75 16.0–18.0 10.0–14.0 2.00–3.00 0.10–0.16 ... ...
S31653 316LN 0.030 2.00 0.045 0.030 0.75 16.0–18.0 10.0–14.0 2.00–3.00 0.10–0.16 ... ...
S31655 0.030 2.00 0.045 0.015 1.00 19.5–21.5 8.0–9.5 0.50–1.50 0.14–0.25 1.00 ...

3
S31700 317 0.08 2.00 0.045 0.030 0.75 18.0–20.0 11.0–15.0 3.0–4.0 0.10 ... ...
S31703 317L 0.030 2.00 0.045 0.030 0.75 18.0–20.0 11.0–15.0 3.0–4.0 0.10 ... ...
S31725 317LMG 0.030 2.00 0.045 0.030 0.75 18.0–20.0 13.5–17.5 4.0–5.0 0.20 ... ...
S31726 317LMNG 0.030 2.00 0.045 0.030 0.75 17.0–20.0 13.5–17.5 4.0–5.0 0.10–0.20 ... ...
S31727 ... 0.030 1.00 0.030 0.030 1.00 17.5–19.0 14.5–16.5 3.8–4.5 0.15–0.21 2.80–4.00 ...
S31730 ... 0.030 2.00 0.040 0.010 1.00 17.0–19.0 15.0–16.5 3.0–4.0 0.045 4.0–5.0 ...
S31753 317LNG 0.030 2.00 0.045 0.030 0.75 18.0–20.0 11.0–15.0 3.0–4.0 0.10–0.22 ... ...
A240/A240M − 15a

S32050 ... 0.030 1.50 0.035 0.020 1.00 22.0–24.0 20.0–23.0 6.0–6.8 0.21–0.32 0.40 ...
S32053 ... 0.030 1.00 0.030 0.010 1.00 22.0–24.0 24.0–26.0 5.0–6.0 0.17–0.22 ... ...
S32100 321 0.08 2.00 0.045 0.030 0.75 17.0–19.0 9.0–12.0 ... 0.10 ... Ti 5 × (C + N)
min, 0.70 max
S32109 321H 0.04–0.10 2.00 0.045 0.030 0.75 17.0–19.0 9.0–12.0 ... ... ... Ti 4 × (C + N)
min, 0.70 max
S32615 ... 0.07 2.00 0.045 0.030 4.80–6.00 16.5–19.5 19.0–22.0 0.30–1.50 ... 1.50–2.50 ...
S32654 ... 0.020 2.00–4.00 0.030 0.005 0.50 24.0–25.0 21.0–23.0 7.0–8.0 0.45–0.55 0.30–0.60 ...
S33228 ... 0.04–0.08 1.00 0.020 0.015 0.30 26.0–28.0 31.0–33.0 ... ... ... Ce 0.05–0.10
Cb 0.6–1.0
Al 0.025
S33400 334G 0.08 1.00 0.030 0.015 1.00 18.0–20.0 19.0–21.0 ... ... ... Al 0.15–0.60
Ti 0.15–0.60
S33425 ... 0.08 1.50 0.045 0.020 1.00 21.0–23.0 20.0–23.0 2.00–3.00 ... ... Al 0.15–0.60
Ti 0.15–0.60
S33550 ... 0.04–0.10 1.50 0.040 0.030 1.00 25.0–28.0 16.5–20.0 ... 0.18–0.25 ... Cb 0.05–0.15
La + Ce
0.025–0.070
S34565 ... 0.030 5.00–7.00 0.030 0.010 1.00 23.0–25.0 16.0–18.0 4.0–5.0 0.40–0.60 ... Cb 0.10
S34700 347 0.08 2.00 0.045 0.030 0.75 17.0–19.0 9.0–13.0 ... ... ... Cb 10 × C min,
1.00 max
S34709 347H 0.04–0.10 2.00 0.045 0.030 0.75 17.0–19.0 9.0–13.0 ... ... ... Cb 8 × C min,
1.00 max
 TABLE 1 Continued
UNS C D Phos- Other
Type Carbon Manganese Sulfur Silicon Chromium Nickel Molybdenum Nitrogen Copper
DesignationB phorus ElementsE, F
S34751 347LN 0.005–0.020 2.00 0.045 0.030 1.00 17.0–19.0 9.0–13.0 ... 0.06–0.10 ... Cb 0.20–0.50,
15 × C min
S34800 348 0.08 2.00 0.045 0.030 0.75 17.0–19.0 9.0–13.0 ... ... ... (Cb + Ta) 10×C
min, 1.00 max
Ta 0.10
Co 0.20
S34809 348H 0.04–0.10 2.00 0.045 0.030 0.75 17.0–19.0 9.0–13.0 ... ... ... (Cb + Ta) 8×C
min, 1.00 max
Ta 0.10
Co 0.20
S35045 ... 0.06–0.10 1.50 0.045 0.015 1.00 25.0–29.0 32.0–37.0 ... ... 0.75 Al 0.15–0.60
Ti 0.15–0.60
S35115 ... 0.030 1.00 0.045 0.015 0.50–1.50 23.0–25.0 19.0–22.0 1.50–2.50 0.20–0.30 ... ...
S35125 ... 0.10 1.00–1.50 0.045 0.015 0.50 20.0–23.0 31.0–35.0 2.00–3.00 ... ... Cb 0.25–0.60
S35135 ... 0.08 1.00 0.045 0.015 0.60–1.00 20.0–25.0 30.0–38.0 4.0–4.8 ... 0.75 Ti 0.40–1.00
S35140 ... 0.10 1.00–3.00 0.045 0.030 0.75 20.0–22.0 25.0–27.0 1.00–2.00 0.08–0.20 ... Cb 0.25–0.75
S35315 ... 0.04–0.08 2.00 0.040 0.030 1.20–2.00 24.0–26.0 34.0–36.0 ... 0.12–0.18 ... Ce 0.03–0.10
S38100 XM-15J 0.08 2.00 0.030 0.030 1.50–2.50 17.0–19.0 17.5–18.5 ... ... ... ...
S38815 ... 0.030 2.00 0.040 0.020 5.50–6.50 13.0–15.0 13.0–17.0 0.75–1.50 ... 0.75–1.50 Al 0.30
Duplex (Austenitic-Ferritic)
S31200 ... 0.030 2.00 0.045 0.030 1.00 24.0–26.0 5.5–6.5 1.20–2.00 0.14–0.20 ... ...
S31260 ... 0.03 1.00 0.030 0.030 0.75 24.0–26.0 5.5–7.5 2.5–3.5 0.10–0.30 0.20–0.80 W 0.10–0.50
S31803 ... 0.030 2.00 0.030 0.020 1.00 21.0–23.0 4.5–6.5 2.5–3.5 0.08–0.20 ... ...
S32001 ... 0.030 4.00–6.00 0.040 0.030 1.00 19.5–21.5 1.00–3.00 0.60 0.05–0.17 1.00 ...
S32003 ... 0.030 2.00 0.030 0.020 1.00 19.5–22.5 3.0–4.0 1.50–2.00 0.14–0.20 ... ...
S32101 ... 0.040 4.00–6.00 0.040 0.030 1.00 21.0–22.0 1.35–1.70 0.10–0.80 0.20–0.25 0.10–0.80 ...

4
S32202 ... 0.030 2.00 0.040 0.010 1.00 21.5–24.0 1.00–2.80 0.45 0.18–0.26 ... ...
S32205 2205G 0.030 2.00 0.030 0.020 1.00 22.0–23.0 4.5–6.5 3.0–3.5 0.14–0.20 ... ...
S32304 2304G 0.030 2.50 0.040 0.030 1.00 21.5–24.5 3.0–5.5 0.05–0.60 0.05–0.20 0.05–0.60
S32506 ... 0.030 1.00 0.040 0.015 0.90 24.0–26.0 5.5–7.2 3.0–3.5 0.08–0.20 ... W 0.05–0.30
S32520 ... 0.030 1.50 0.035 0.020 0.80 24.0–26.0 5.5–8.0 3.0–4.0 0.20–0.35 0.50–2.00 ...
S32550 255G 0.04 1.50 0.040 0.030 1.00 24.0–27.0 4.5–6.5 2.9–3.9 0.10–0.25 1.50–2.50 ...
S32750 2507G,O 0.030 1.20 0.035 0.020 0.80 24.0–26.0 6.0–8.0 3.0–5.0 0.24–0.32 0.50 ...
A240/A240M − 15a

S32760K ... 0.030 1.00 0.030 0.010 1.00 24.0–26.0 6.0–8.0 3.0–4.0 0.20–0.30 0.50–1.00 W 0.50–1.00
S32808 ... 0.030 1.10 0.030 0.010 0.50 27.0–27.9 7.0–8.2 0.80–1.2 0.30–0.40 ... W 2.10–2.50
S32900 329 0.08 1.00 0.040 0.030 0.75 23.0–28.0 2.0–5.00 1.00–2.00 ... ... ...
S32906 ... 0.030 0.80–1.50 0.030 0.030 0.80 28.0–30.0 5.8–7.5 1.50–2.60 0.30–0.40 0.80 ...
S32950 ... 0.030 2.00 0.035 0.010 0.60 26.0–29.0 3.5–5.2 1.00–2.50 0.15–0.35 ... ...
S39274 ... 0.030 1.00 0.030 0.020 0.80 24.0–26.0 6.0–8.0 2.5–3.5 0.24–0.32 0.20–0.80 W 1.50–2.50
S81921 ... 0.030 2.00–4.00 0.040 0.030 1.00 19.0–22.0 2.0–4.0 1.00–2.00 0.14–0.20 ... ...
S82011 ... 0.030 2.00–3.00 0.040 0.020 1.00 20.5–23.5 1.0–2.0 0.10–1.00 0.15–0.27 0.50 ...
S82012 ... 0.05 2.00–4.00 0.040 0.005 0.80 19.0–20.5 0.8–1.5 0.10–0.60 0.16–0.26 1.00 ...
S82031 ... 0.05 2.50 0.040 0.005 0.80 19.0–22.0 2.0–4.0 0.60–1.40 0.14–0.24 1.00 ...
S82121 ... 0.035 1.00–2.50 0.040 0.010 1.00 21.0–23.0 2.0–4.0 0.30–1.30 0.15–0.25 0.20–1.20 ...
S82122 ... 0.030 2.0–4.0 0.040 0.020 0.75 20.5–21.5 1.5–2.5 0.60 0.15–0.20 0.50–1.50 ...
S82441 ... 0.030 2.50–4.00 0.035 0.005 0.70 23.0–25.0 3.0–4.5 1.00–2.00 0.20–0.30 0.10–0.80 ...
Ferritic or Martensitic (Chromium)
S32803 ... 0.015 0.50 0.020 0.0035 0.55 28.0–29.0 3.0–4.0 1.80–2.50 0.020 ... Cb 12×(C+N)
(C+N) 0.030 min,
0.15–0.50
S40300 403 0.15 1.00 0.040 0.030 0.50 11.5–13.0 0.60 ... ... ... ...
S40500 405 0.08 1.00 0.040 0.030 1.00 11.5–14.5 0.60 ... ... ... Al 0.10–0.30
S40900L 409L
S40910 ... 0.030 1.00 0.040 0.020 1.00 10.5–11.7 0.50 ... 0.030 ... Ti 6×(C+N) min,
0.50 max; Cb
0.17
 TABLE 1 Continued
UNS Phos- Other
TypeC CarbonD Manganese Sulfur Silicon Chromium Nickel Molybdenum Nitrogen Copper
DesignationB phorus ElementsE, F
S40920 ... 0.030 1.00 0.040 0.020 1.00 10.5–11.7 0.50 ... 0.030 ... Ti 8×(C+N) min,
Ti 0.15–0.50; Cb
0.10
S40930 ... 0.030 1.00 0.040 0.020 1.00 10.5–11.7 0.50 ... 0.030 ... (Ti+Cb) [0.08+8
×(C+N)] min,
0.75 max;
Ti 0.05 min
S40945 ... 0.030 1.00 0.040 0.030 1.00 10.5–11.7 0.50 ... 0.030 ... Cb 0.18–0.40
Ti 0.05–0.20
S40975 ... 0.030 1.00 0.040 0.030 1.00 10.5–11.7 0.50–1.00 ... 0.030 ... Ti 6×(C+N) min,
0.75 max
S40977 ... 0.030 1.50 0.040 0.015 1.00 10.5–12.5 0.30–1.00 ... 0.030 ... ...
S41000 410 0.08–0.15 1.00 0.040 0.030 1.00 11.5–13.5 0.75 ... ... ... ...
S41003 ... 0.030 1.50 0.040 0.030 1.00 10.5–12.5 1.50 ... 0.030 ... ...
S41008 410S 0.08 1.00 0.040 0.030 1.00 11.5–13.5 0.60 ... ... ... ...
S41045 ... 0.030 1.00 0.040 0.030 1.00 12.0–13.0 0.50 ... 0.030 ... Cb 9×(C+N) min,
0.60 max
S41050 ... 0.04 1.00 0.045 0.030 1.00 10.5–12.5 0.60–1.10 ... 0.10 ... ...
S41500M ... 0.05 0.50–1.00 0.030 0.030 0.60 11.5–14.0 3.5–5.5 0.50–1.00 ... ... ...
S42000 420 0.15 min 1.00 0.040 0.030 1.00 12.0-14.0 0.75 0.50 ... ... ...
S42035 ... 0.08 1.00 0.045 0.030 1.00 13.5–15.5 1.0–2.5 0.2–1.2 ... ... Ti 0.30–0.50
S42200 422 0.20–0.25 0.50–1.00 0.025 0.025 0.50 11.0–12.5 0.50–1.00 0.90–1.25 ... ... V 0.20-0.30,
W 0.90-1.25
S42900 429G 0.12 1.00 0.040 0.030 1.00 14.0–16.0 ... ... ... ... ...
S43000 430 0.12 1.00 0.040 0.030 1.00 16.0–18.0 0.75 ... ... ... ...
S43035 439 0.030 1.00 0.040 0.030 1.00 17.0–19.0 0.50 ... 0.030 ... Ti [0.20+4(C+N)]

5
min, 1.10 max; Al
0.15
S43100 431 0.20 1.00 0.040 0.030 1.00 15.0–17.0 1.25–2.50 ... ... ... ...
S43400 434 0.12 1.00 0.040 0.030 1.00 16.0–18.0 ... 0.75–1.25 ... ... ...
S43600 436 0.12 1.00 0.040 0.030 1.00 16.0–18.0 ... 0.75–1.25 ... ... Cb 5×C min,
0.80 max
S43932 ... 0.030 1.00 0.040 0.030 1.00 17.0–19.0 0.50 ... 0.030 ... (Ti+Cb)
A240/A240M − 15a

[0.20+4(C+N)]
min, 0.75 max;
Al 0.15
S43940 ... 0.030 1.00 0.040 0.015 1.00 17.5–18.5 ... ... ... ... Ti 0.10–0.60 Cb
[0.30+(3×C)] min
S44100 ... 0.030 1.00 0.040 0.030 1.00 17.5–19.5 1.00 ... 0.030 ... Ti 0.1–0.5
Cb [0.3 + (9× C)]
min,
0.90 max
S44200 442 0.20 1.00 0.040 0.040 1.00 18.0–23.0 0.60 ... ... ... ...
S44330 ... 0.025 1.00 0.040 0.030 1.00 20.0–23.0 ... ... 0.025 0.30–0.80 (Ti+Cb)
8×(C+N) min,
0.80 max
S44400 444 0.025 1.00 0.040 0.030 1.00 17.5–19.5 1.00 1.75–2.50 0.035 ... (Ti+Cb)[0.20+4(C+N)]
min, 0.80 max
S44500 ... 0.020 1.00 0.040 0.012 1.00 19.0–21.0 0.60 ... 0.03 0.30–0.60 Cb 10×(C+N)
min, 0.80 max
S44535 ... 0.030 0.30–0.80 0.050 0.020 0.50 20.0–24.0 ... ... ... 0.50 La 0.04–0.20
Ti 0.03–0.20
Al 0.50
S44536 ... 0.015 1.00 0.040 0.030 1.00 20.0–23.0 0.5 ... 0.015 ... (Ti+Cb)
8X(C+N)–0.8, Cb
min 0.05
 TABLE 1 Continued
UNS C D Phos- Other
Type Carbon Manganese Sulfur Silicon Chromium Nickel Molybdenum Nitrogen Copper
DesignationB phorus ElementsE, F
S44537 ... 0.030 0.8 0.050 0.006 0.1–0.6 20.0–24.0 0.5 ... 0.04 0.5 Al 0.1
W 1.0–3.0
Cb 0.2–1.0
Ti 0.02–0.20
La 0.04–0.20
S44626 XM-33J 0.06 0.75 0.040 0.020 0.75 25.0–27.0 0.50 0.75–1.50 0.04 0.20 Ti 0.20–1.00;
Ti 7(C+N) min
J N N
S44627 XM-27 0.010 0.40 0.020 0.020 0.40 25.0–27.5 0.50 0.75–1.50 0.015 0.20 Cb 0.05–0.20
(Ni + Cu) 0.50
S44635 ... 0.025 1.00 0.040 0.030 0.75 24.5–26.0 3.5–4.5 3.5–4.5 0.035 ... (Ti+Cb) [0.20+4
(C+N)] min, 0.80
max
S44600 446 0.20 1.50 0.040 0.030 1.00 23.0–27.0 0.75 ... 0.25 ... ...
S44660 ... 0.030 1.00 0.040 0.030 1.00 25.0–28.0 1.0–3.5 3.0–4.0 0.040 ... (Ti+Cb) 0.20 −
1.00, Ti + Cb
6×(C+N) min
S44700 ... 0.010 0.30 0.025 0.020 0.20 28.0–30.0 0.15 3.5–4.2 0.020 0.15 (C+N) 0.025
S44725 ... 0.015 0.40 0.040 0.020 0.040 25.0–28.5 0.30 1.5–2.5 0.018 ... (Ti+Cb)
$8×(C+N)
S44735 ... 0.030 1.00 0.040 0.030 1.00 28.0–30.0 1.00 3.6–4.2 0.045 ... (Ti+Cb)
0.20–1.00,

6
(Ti+Cb) 6× (C+N)
min
S44800 ... 0.010 0.30 0.025 0.020 0.20 28.0–30.0 2.00–2.50 3.5–4.2 0.020 0.15 (C+N) 0.025
S46800 ... 0.030 1.00 0.040 0.030 1.00 18.0–20.0 0.50 ... 0.030 ... Ti 0.07–0.30
Cb 0.10–0.60
(Ti+Cb) [0.20+4
(C+N)] min, 0.80
A240/A240M − 15a

max
A
Maximum, unless range or minimum is indicated. Where ellipses (. . .) appear in this table, there is no requirement and the element need not be determined or reported.
B
Designation established in accordance with Practice E527 and SAE J 1086.
C
Unless otherwise indicated, a grade designation originally assigned by the American Iron and Steel Institute (AISI).
D
Carbon analysis shall be reported to nearest 0.01 % except for the low-carbon types, which shall be reported to nearest 0.001 %.
E
The terms Columbium (Cb) and Niobium (Nb) both relate to the same element.
F
When two minimums or two maximums are listed for a single type, as in the case of both a value from a formula and an absolute value, the higher minimum or lower maximum shall apply.
G
Common name, not a trademark, widely used, not associated with any one producer.
H
Iron shall be determined arithmetically by difference of 100 minus the sum of the other specified elements.
I
(Al + Ti) 0.85–1.20.
J
Naming system developed and applied by ASTM.
K
Cr + 3.3 Mo + 16 N = 40 min.
L
S40900 (Type 409) has been replaced by S40910, S40920, and S40930. Unless otherwise specified in the ordering information, an order specifying S40900 or Type 409 shall be satisfied by any one of S40910, S40920,
or S40930 at the option of the seller. Material meeting the requirements of S40910, S40920, or S40930, may at the option of the manufacturer be certified as S40900.
M
Plate version of CA-6NM.
N
Product (check or verification) analysis tolerance over the maximum limit for C and N in XM-27 shall be 0.002 %.
O
Cr + 3.3 Mo + 16 N = 41 min.
 A240/A240M − 15a
5. Mechanical Properties 6.2 Supplementary Requirement S2 shall be invoked when
5.1 The material shall conform to the mechanical properties non-H grade austenitic stainless steels are ordered for ASME
specified in Table 2. Code applications for service above 1000°F [540°C].
5.2 When specified by the purchaser, Charpy impact tests 6.3 Grade S31060, unless otherwise specified in the pur-
shall be performed in accordance with Supplementary Require- chase order, shall conform to an average grain size of ASTM
ment S1. No. 7 or coarser, as measured by Test Methods E112.

6. Materials for High-Temperature Service 7. Keywords

6.1 The austenitic H Types shall conform to an average 7.1 architectural; building; chromium; chromium-nickel
grain size of ASTM No. 7 or coarser as measured by Test stainless steel; chromium-manganese-nickel stainless steel;
Methods E112. construction; pressure vessels

7
 TABLE 2 Mechanical Test Requirements
Tensile Strength, min Yield Strength,B min Elongation Hardness, maxC
in
UNS Designation TypeA 2 in. or Cold Bend°D
50 mm, Brinell.
ksi MPa ksi MPa Rockwell
min, % HBW

Austenitic (Chromium-Nickel) (Chromium-Manganese-Nickel)

N08020 ... 80 550 35 240 30E 217 95 HRBW not required
N08367
Sheet and Strip 100 690 45 310 30 ... 100 HRBW not required
Plate 95 655 45 310 30 241 ... not required
N08700 ... 80 550 35 240 30 192 90 HRBW not required
N08800 800F 75 520 30G 205G 30H ... ... not required
N08810 800HF 65 450 25G 170G 30 ... ... not required
N08811 ... 65 450 25 170 30 ... ... not required
N08904 904LF 71 490 31 220 35 ... 90 HRBW not required
N08925 ... 87 600 43 295 40 ... ... not required
N08926 ... 94 650 43 295 35 ... ... not required

S20100 201-1I 75 515 38 260 40 217 95 HRBW ...

S20100 201-2I 95 655 45 310 40 241 100 HRBW ...
S20103 201LF 95 655 38 260 40 217 95 HRBW not required
S20153 201LNF 95 655 45 310 45 241 100 HRBW not required
S20161 ... 125 860 50 345 40 255 25 HRC not required
S20200 202 90 620 38 260 40 241 ... ...
S20400 ... 95 655 48 330 35 241 100 HRBW not required
S20431 ... 90 620 45 310 40 241 100 HRBW not required
S20432 ... 75 515 30 205 40 201 92 HRBW not required
S20433 ... 80 550 35 240 40 217 95 HRBW not required

8
S20910 XM-19J
Sheet and Strip 105 725 60 415 30 241 100 HRBW not required
Plate 100 690 55 380 35 241 100 HRBW not required
S21600 XM-17J
Sheet and Strip 100 690 60 415 40 241 100 HRBW not required
Plate 90 620 50 345 40 241 100 HRBW not required
S21603 XM-18J
A240/A240M − 15a

Sheet and Strip 100 690 60 415 40 241 100 HRBW not required
Plate 90 620 50 345 40 241 100 HRBW not required
S21640 ... 95 650 45 310 40 ... ... not required
S21800 ... 95 655 50 345 35 241 100 HRBW not required
S21904 XM-11J
Sheet and Strip 100 690 60 415 40 241 100 HRBW not required
Plate 90 620 50 345 45 241 100 HRBW not required
S24000 XM-29J
Sheet and Strip 100 690 60 415 40 241 100 HRBW not required
Plate 100 690 55 380 40 241 100 HRBW not required

S30100 301 75 515 30 205 40 217 95 HRBW not required

S30103 301LF 80 550 32 220 45 241 100 HRBW not required
S30153 301LNF 80 550 35 240 45 241 100 HRBW not required
S30200 302 75 515 30 205 40 201 92 HRBW not required
S30400 304 75 515 30 205 40 201 92 HRBW not required
S30403 304L 70 485 25 170 40 201 92 HRBW not required
S30409 304H 75 515 30 205 40 201 92 HRBW not required
S30415 ... 87 600 42 290 40 217 95 HRBW not required
S30435 ... 65 450 23 155 45 187 90 HRBW ...
 TABLE 2 Continued
Tensile Strength, min Yield Strength,B min Elongation Hardness, maxC
in
A
UNS Designation Type 2 in. or Cold Bend°D
50 mm, Brinell.
ksi MPa ksi MPa Rockwell
min, % HBW

S30441 ... 75 515 30 205 40 201 92 HRBW not required

S30451 304N 80 550 35 240 30 217 95 HRBW not required
S30452 XM-21J
Sheet and Strip 90 620 50 345 30 241 100 HRBW not required
Plate 85 585 40 275 30 241 100 HRBW not required
S30453 304LN 75 515 30 205 40 217 95 HRBW not required
S30500 305 70 485 25 170 40 183 88 HRBW not required
S30530 ... 75 515 30 205 40 201 92 HRBW not required
S30600 ... 78 540 35 240 40 ... ... ...
S30601 ... 78 540 37 255 30 ... ... not required
S30615 ... 90 620 40 275 35 217 95 HRBW not required

S30815 ... 87 600 45 310 40 217 95 HRBW ...

S30908 309S 75 515 30 205 40 217 95 HRBW not required
S30909 309HF 75 515 30 205 40 217 95 HRBW not required
S30940 309CbF 75 515 30 205 40 217 95 HRBW not required
S30941 309HCbF 75 515 30 205 40 217 95 HRBW not required
S31008 310S 75 515 30 205 40 217 95 HRBW not required
S31009 310HF 75 515 30 205 40 217 95 HRBW not required
S31040 310CbF 75 515 30 205 40 217 95 HRBW not required
S31041 310HCbF 75 515 30 205 40 217 95 HRBW not required
S31050 310 MoLNF
t # 0.25 in. 84 580 39 270 25 217 95 HRBW not required
t > 0.25 in. 78 540 37 255 25 217 95 HRBW not required

9
S31060 ... 87 600 41 280 40 217 95 HRBW not required
S31254
Sheet and Strip 100 690 45 310 35 223 96 HRBW not required
Plate 95 655 45 310 35 223 96 HRBW not required
S31266 ... 109 750 61 420 35 ... ... not required
S31277 ... 112 770 52 360 40 ... ... not required
A240/A240M − 15a

S31600 316 75 515 30 205 40 217 95 HRBW not required

S31603 316L 70 485 25 170 40 217 95 HRBW not required
S31609 316H 75 515 30 205 40 217 95 HRBW not required
S31635 316TiF 75 515 30 205 40 217 95 HRBW not required
S31640 316CbF 75 515 30 205 30 217 95 HRBW not required

S31651 316N 80 550 35 240 35 217 95 HRBW not required

S31653 316LN 75 515 30 205 40 217 95 HRBW not required
S31655 92 635 45 310 35 241 100 HRBW not required
S31700 317 75 515 30 205 35 217 95 HRBW not required
S31703 317L 75 515 30 205 40 217 95 HRBW not required
S31725 317LMF 75 515 30 205 40 217 95 HRBW not required
S31726 317LMNF 80 550 35 240 40 223 96 HRBW not required
S31727 ... 80 550 36 245 35 217 96 HRBW not required
S31730 ... 70 480 25 175 35 ... 90 HRBW not required
S31753 317LN 80 550 35 240 40 217 95 HRBW not required
S32050 ... 98 675 48 330 40 250 ... not required

S32053 ... 93 640 43 295 40 217 96 HRBW not required

S32100 321 75 515 30 205 40 217 95 HRBW not required
S32109 321H 75 515 30 205 40 217 95 HRBW not required
S32615K ... 80 550 32 220 25 ... ... not required
S32654 ... 109 750 62 430 40 250 ... not required
 TABLE 2 Continued
Tensile Strength, min Yield Strength,B min Elongation Hardness, maxC
in
UNS Designation TypeA 2 in. or Cold Bend°D
50 mm, Brinell.
ksi MPa ksi MPa Rockwell
min, % HBW

S33228 ... 73 500 27 185 30 217 95 HRBW not required

S33400 334F 70 485 25 170 30 ... 92 HRBW not required
S33425 ... 75 515 30 205 40 ... ... not required
S33550 ... 87 600 41 280 35 217 95 HRBW not required
S34565 ... 115 795 60 415 35 241 100 HRBW not required
S34700 347 75 515 30 205 40 201 92 HRBW not required
S34709 347H 75 515 30 205 40 201 92 HRBW not required
S34751 347LN 75 515 30 205 40 201 92 HRBW not required
S34800 348 75 515 30 205 40 201 92 HRBW not required
S34809 348H 75 515 30 205 40 201 92 HRBW not required

S35045 ... 70 485 25 170 35 ... ... not required

S35115 ... 85 585 40 275 40 241 100 HRBW not required
S35125 ... 70 485 30 205 35 ... ... not required
S35135
Sheet and Strip ... 80 550 30 205 30 ... ... not required
Plate ... 75 515 30 205 30 ... ... not required
S35140 ... 90 620 40 275 30 241 100 HRBW not required
S35315 ... 94 650 39 270 40 217 95 HRBW not required
S38100 XM-15J 75 515 30 205 40 217 95 HRBW not required
S38815 ... 78 540 37 255 30 ... ... not required
Duplex (Austenitic-Ferritic)
S31200 ... 100 690 65 450 25 293 31 HRC not required
S31260 ... 100 690 70 485 20 290 ... ...

10
S31803 ... 90 620 65 450 25 293 31 HRC not required
S32001 ... 90 620 65 450 25 ... 25 HRC not required

S32003 ...
t # 0.187 in. 100 690 70 485 25 293 31 HRC not required
[5.00 mm]
t > 0.187 in. 95 655 65 450 25 293 31 HRC not required
A240/A240M − 15a

[5.00 mm]
S32101 ...
t # 0.187 in. 101 700 77 530 30 290 31 HRC not required
[5.00 mm]
t > 0.187 in. 94 650 65 450 30 290 31 HRC not required
[5.00 mm]

S32202 ... 94 650 65 450 30 290 31 HRC not required

S32205 2205F 95 655 65 450 25 293 31 HRC not required
S32304 2304F 87 600 58 400 25 290 32 HRC not required
S32506 ... 90 620 65 450 18 302 32 HRC not required
S32520 ... 112 770 80 550 25 310 32 HRC not required
S32550 255F 110 760 80 550 15 302 32 HRC not required
S32750 2507F 116 795 80 550 15 310 32 HRC not required
S32760 ... 108 750 80 550 25 270 28 HRC not required
S32808 ... 101 700 72 500 15 310 32 HRC not required
S32900 329 90 620 70 485 15 269 28 HRC not required
S32906 ... 116 800 94 650 25.0 310 32 HRC not required
t < 0.4 in.
[10.0 mm]
t $ 0.4 in. 109 750 80 550 25.0 310 32 HRC not required
[10.0 mm]
 TABLE 2 Continued
Tensile Strength, min Yield Strength,B min Elongation Hardness, maxC
in
UNS Designation TypeA 2 in. or Cold Bend°D
50 mm, Brinell.
ksi MPa ksi MPa Rockwell
min, % HBW

S32950L ... 100 690 70 485 15 293 32 HRC not required

S39274 ... 116 800 80 550 15 310 32 HRC not required
S81921 ... 90 620 65 450 25 293 31 HRC not required
S82011 ... 101 700 75 515 30 293 31 HRC not required
t # 0.187 in.
[5.00 mm]
t > 0.187 in. 95 655 65 450 30 293 31 HRC not required
[5.00 mm]
S82012 t >0.187 in. 94 650 58 400 35 290
[5.00 mm]
t #0.187 in. 102 700 73 500 35 31 HRC not required
[5.00 mm]
S82031 t>0.187 in. 94 650 58 400 35 290 not required
[5.00 mm]
t#0.187 in. 102 700 73 500 35 31 HRC not required
[5.00 mm]
S82121 ... 94 650 65 450 25 286 30 HRC not required
S82122 t<0.118 in. 101 700 72 500 25 290 32 HRC not required
[3.00 mm]
t$0.118 in. 87 600 58 400 30 290 32 HRC not required
[3.00 mm]
S82441 ...

11
t < 0.4 in. [10.0 107 740 78 540 25 290 31 HRC not required
mm]
t $ 0.4 in. [10.0 99 680 70 480 25 290 31 HRC not required
mm]
Ferritic or Martensitic (Chromium)
S32803 ... 87 600 72 500 16 241 100 HRBW not required
S40300 403 70 485 30 205 25N 217 96 HRBW 180
A240/A240M − 15a

S40500 405 60 415 25 170 20 179 88 HRBW 180

S40900M 409M
S40910 ... 55 380 25 170 20 179 88 HRBW 180
S40920 ... 55 380 25 170 20 179 88 HRBW 180
S40930 ... 55 380 25 170 20 179 88 HRBW 180
S40945 ... 55 380 30 205 22 ... 80 HRBW 180
S40975 ... 60 415 40 275 20 197 92 HRBW 180
S40977 ... 65 450 41 280 18 180 88 HRBW not required

S41000 410 65 450 30 205 20 217 96 HRBW 180

S41003 ... 66 455 40 275 18 223 20 HRC not required
S41008 410S 60 415 30 205 22N 183 89 HRBW 180
S41045 ... 55 380 30 205 22 ... 80 HRBW 180
S41050 ... 60 415 30 205 22 183 89 HRBW 180
S41500 ... 115 795 90 620 15 302 32 HRC not required
S42000 420 100Q 690Q ... ... 15 217 96 HRBW not required
S42035 ... 80 550 55 380 16 180 88 HRBW not required
S42200 422 ... ... ... ... ... 248 24 HRC not required
S42900 429F 65 450 30 205 22N 183 89 HRBW 180
S43000 430 65 450 30 205 22N 183 89 HRBW 180
S43035 439 60 415 30 205 22 183 89 HRBW 180
S43100 431 ... ... ... ... ... 285 29 HRC not required
S43400 434 65 450 35 240 22 ... 89 HRBW 180
 TABLE 2 Continued
Tensile Strength, min Yield Strength,B min Elongation Hardness, maxC
in
UNS Designation TypeA 2 in. or Cold Bend°D
50 mm, Brinell.
ksi MPa ksi MPa Rockwell
min, % HBW

S43600 436 65 450 35 240 22 ... 89 HRBW 180

S43932 ... 60 415 30 205 22 183 89 HRBW 180
S43940 ... 62 430 36 250 18 180 88 HRBW not required
S44330 ... 56 390 30 205 22 187 90 HRBW not required
S44100 ... 60 414 35 241 20 190 90 HRBW not required
S44200 442 65 515 40 275 20 217 96 HRBW 180
S44400 ... 60 415 40 275 20 217 96 HRBW 180
S44500 ... 62 427 30 205 22 ... 83 HRBW 180
S44535 ... 58 400 36 250 25E ... 90O HRBW not required
S44536 ... 60 410 35 245 20 192 90 HRBW 180
S44537 ... 65 450 46 320 18P 200 93 HRBW 180
S44600 446 65 515 40 275 20 217 96 HRBW 135
S44626 XM-33J 68 470 45 310 20 217 96 HRBW 180
S44627 XM-27J 65 450 40 275 22 187 90 HRBW 180
S44635 ... 90 620 75 515 20 269 28 HRC 180
S44660 ... 85 585 65 450 18 241 100 HRBW 180
S44700 ... 80 550 60 415 20 223 20 HRC 180

12
S44725 ... 65 450 40 275 20 210 95 HRBW 180
S44735 ... 80 550 60 415 18 255 25 HRC 180
S44800 ... 80 550 60 415 20 223 20 HRC 180
S46800 ... 60 415 30 205 22 ... 90 HRBW 180
A
Unless otherwise indicated, a grade designation originally assigned by the American Iron and Steel Institute (AISI).
B
Yield strength shall be determined by the offset method at 0.2 % in accordance with Test Methods and Definitions A370. Unless otherwise specified (see Specification A480/A480M, paragraph 4.1.11, Ordering
Information), an alternative method of determining yield strength may be based on total extension under load of 0.5 %.
A240/A240M − 15a

C
Either Brinell or denoted Rockwell Hardness scale is permissible. For thin materials, see Specification A480/A480M (17.2.1) and Test Methods A370 (18.1.2) on superficial testing.
D
Bend tests are not required for chromium steels (ferritic or martensitic) thicker than 1 in. [25 mm] or for any austenitic or duplex (austenitic-ferritic) stainless steels regardless of thickness.
E
Elongation for thickness, less than 0.015 in. [0.38 mm] shall be 20 % minimum, in 1 in. [25.4 mm].
F
Common name, not a trademark, widely used, not associated with any one producer.
G
Yield strength requirements shall not apply to material under 0.020 in [0.50 mm] in thickness.
H
Not applicable for thicknesses under 0.010 in. [0.25 mm].
I
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.
J
Naming system developed and applied by ASTM.
K
For S32615, the grain size as determined in accordance with the Test Methods E112, Comparison Method, Plate II, shall be No. 3 or finer.
L
Prior to Specification A240 – 89b, the tensile value for S32950 was 90 ksi.
M
S40900 (Type 409) has been replaced by S40910, S40920, and S40930. Unless otherwise specified in the ordering information, an order specifying S40900 or Type 409 shall be satisfied by any one of S40910, S40920,
or S40930 at the option of the seller. Material meeting the requirements of S40910, S40920, or S40930, may at the option of the manufacturer be certified as S40900.
N
Material 0.050 in [1.27 mm] and under in thickness shall have a minimum elongation of 20 %.
O
Hardness is required to be provided for information only, but is not required to meet a particular requirement.
P
The minimum elongation for plates thicker than 0.630 in. (16 mm) shall be 8 %.
Q
Maximum. Type 420 is usually used in the heat-treated condition (quenched and tempered to a specific range of hardness or tensile strength).
 A240/A240M − 15a

SUPPLEMENTARY REQUIREMENTS

A supplementary requirement shall apply only when specified in the purchase order.

S1. Charpy Impact Testing of Plate on duplex stainless steels covered in both Specification A240 and Test
Methods A923 to be performed at the lower of the temperatures specified
S1.1 Charpy impact tests shall be conducted in accordance by this supplementary requirement and Test Methods A923 Method B,
with Test Methods and Definitions A370. with measurement of both lateral expansion and impact energy.
S1.2 Number of Tests—One impact test (three specimens) S1.5 Acceptance Limit —Unless otherwise specified on the
shall be made from one plate per heat treatment lot in the final purchase order, each of the three specimens tested shall show
heat treated condition. a lateral expansion opposite the notch of not less than 0.015 in.
S1.3 Orientation of Test Specimens—Unless specified as [0.38 mm].
transverse specimens (long axis of the specimen transverse to
S1.6 Records—The recorded results shall include the
the final rolling direction, root of the notch perpendicular to the
specimen orientation, specimen size, test temperature, ab-
rolling face) on the purchase order, the orientation of the
sorbed energy values (if required), and lateral expansion
specimens shall be longitudinal (long axis of the specimen
opposite the notch.
parallel to the final rolling direction, root of the notch perpen-
dicular to the rolling face). The manufacturer is permitted to
S2. Materials for High-Temperature Service
test transverse specimens provided that such tests meet the
acceptance criteria applicable to longitudinal specimens. Un- S2.1 Unless an H grade has been ordered, this supplemen-
less otherwise specified on the purchase order, the specimens tary requirement shall be specified for ASME Code applica-
shall be taken so as to include the mid-thickness of the product. tions for service above 1000°F [540°C].
S1.4 Test Temperature—The purchaser shall specify the S2.2 The user is permitted to use an austenitic stainless
test temperature. The manufacturer is permitted to test speci- steel as the corresponding H grade when the material meets all
mens at a temperature lower than that specified by the requirements of the H grade including chemistry, annealing
purchaser, provided that such tests shall meet the acceptance temperature, and grain size (see Section 6).
criteria applicable to specimens tested at the specified tempera- S2.3 The user is permitted to use an L grade austenitic
ture (see the note below). stainless steel for service above 1000°F [540°C], subject to the
NOTE S1.1—Test Methods A923, Method B, applicable to some duplex applicable allowable stress table of the ASME Code, when the
(austenitic-ferritic) stainless steels as listed in Test Methods A923, uses a material meets all requirements of this specification and the
Charpy impact test for the purpose of determining the absence of
detrimental intermetallic phases. Method B specifies a test temperature grain size is ASTM No. 7 or coarser as determined in
and acceptance criterion, expressed as impact energy, for each type of accordance with Test Methods E112. The grain size shall be
steel covered. It may be economical for the Charpy impact tests performed reported on a Certified Test Report.

SUMMARY OF CHANGES

Committee A01 has identified the location of selected changes to this standard since the last issue
(A240/A240M – 15) that may impact the use of this standard. (Approved March 1, 2015.)

(1) Added “including architectural and aesthetic applications (3) Added grade UNS S31655 to Tables 1 and 2.
to” Scope (subsection 1.1).
(2) Added architectural, building, and construction to Key-
words (Section 7).

Committee A01 has identified the location of selected changes to this standard since the last issue
(A240/A240M – 14) that may impact the use of this standard. (Approved Jan. 1, 2015.)

(1) S31730 added to Tables 1 and 2. (4) Added the appropriate Rockwell Scale designation to all
(2) Footnote A of Table 1 revised to explain ellipses. applicable maximums in the Rockwell Column in Table 2.
(3) Altered Column head for Rockwell Hardness from “Rock- (5) Eliminated footnote J of Table 2, which designated certain
well B” to “Rockwell” in Table 2. hardness maximums as HRC, as it is no longer necessary.

13
 A240/A240M − 15a
(6) Modified footnote C of Table 2, to permit the denoted (8) Added footnote Q to Table 2 (identical to footnote E from
Rockwell Hardness Scales and to permit the use of superficial A176, Table 2).
scales for thin materials.
(7) Added grades UNS S40300, S42000, S42200, S43100,
S44200, and S44600 from A176 to Tables 1 and 2.

Committee A01 has identified the location of selected changes to this standard since the last issue
(A240/A240M – 13c) that may impact the use of this standard. (Approved May 1, 2014.)

(1) Added Rockwell C maximums equivalent to the Brinell

Maximum listed to S31260, S32101, S32202, S32520, S32760,
and S82441 in Table 2.

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