Manufacture, Stockholder And Distributor of Stainless Steel Plate, Sheet, Strip

Designation: A 240/A 240M – 04ae1
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 A 240/A 240M; 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 (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
e1 NOTE—Tables 1 and 2 were editorially corrected in March 2004.

Scope*
1.1 This specification2 covers chromium, chromium-nickel,
and chromium-manganese-nickel stainless steel plate, sheet,
and strip for pressure vessels and for general applications.
1.2 The values stated in either inch-pound units or SI units
are to be regarded separately as standard. The values stated in
each system are not exact equivalents; therefore, each system
must be used independently of the other. Combining values
from the two systems may result in nonconformance with the
specification.
1.3 This specification is expressed in both inch-pound and
SI units. However, unless the order specifies the applicable
“M” specification designation (SI units), the material shall be
furnished in inch-pound units.
Referenced Documents
2.1 ASTM Standards: 3
A 370 Test Methods and Definitions for Mechanical Testing
of Steel Products
A 480/A 480M Specification for General Requirements for
Flat-Rolled Stainless and Heat-Resisting Steel Plate,
Sheet, and Strip
A 923 Test Methods for Detecting Detrimental Intermetallic
Phase in Wrought Duplex Austenitic/Ferritic Stainless
Steels
E 112 Test Methods for Determining Average Grain Size
E 527 Practice for Numbering Metals and Alloys (UNS)
2.2 SAE Standard:
J 1086 Practice for Numbering Metals and Alloys (UNS)4
General Requirements
3.1 The following requirements for orders for material
furnished under this specification shall conform to the applicable
requirements of the current edition of Specification
A 480/A 480M.
3.1.1 Definitions;
3.1.2 General requirements for delivery;
3.1.3 Ordering information;
3.1.4 Process;
3.1.5 Special tests;
3.1.6 Heat treatment;
3.1.7 Dimensions and permissible variations;
3.1.8 Workmanship, finish and appearance;
3.1.9 Number of tests/test methods;
3.1.10 Specimen preparation;
3.1.11 Retreatment;
3.1.12 Inspection;
3.1.13 Rejection and rehearing;
3.1.14 Material test report;
3.1.15 Certification; and
3.1.16 Packaging, marking, and loading.
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 Specification A 480/
A 480M.
Mechanical Properties
5.1 The material shall conform to the mechanical properties
specified in Table 2.
5.2 When specified by the purchaser, Charpy impact tests
shall be performed in accordance with Supplementary Requirement
S1.
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 March 1, 2004. Published March 2004. Originally
approved in 1940. Last previous edition approved in 2004 as A 240/A 240M – 04.
2 For ASME Boiler and Pressure Vessel Code applications see related Specification
SA-240 in Section II of that Code.
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
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
4 Available from Society of Automotive Engineers, 400 Commonwealth Dr.,
Warrendale, PA 15096.
1
*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.
Materials for High-Temperature Service
6.1 The austenitic H Types shall conform to an average
grain size of ASTM No. 7 or coarser as measured by Test
Methods E 112.
6.2 Supplementary Requirement S2 shall be invoked when
non-H grade austenitic stainless steels are ordered for ASME
Code applications for service above 1000°F [540°C].
6.3 Grade S31060, unless otherwise specified in the purchase
order, shall conform to an average grain size of ASTM
No. 7 or coarser, as measured by Test Methods E 112.
A 240/A 240M – 04ae1
2
TABLE 1 Chemical Composition Requirements, %A
UNS
DesignationB
TypeC CarbonD Manganese Phosphorus
Sulfur Silicon Chromium Nickel Molybdenum Nitrogen Copper Other
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 . . . 3.0–4.0 Cb 83C 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 . . .
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 0.15–0.60
AlI 0.15–0.60
N08904 904LG 0.020 2.00 0.045 0.035 1.00 19.0–23.0 23.0–28.0 4.0–5.0 0.10 1.0–2.0 . . .
N08926 . . . 0.020 2.00 0.030 0.010 0.50 19.0–21.0 24.0–26.0 6.0–7.0 0.15–0.25 0.5–1.5 . . .
S20100 201 0.15 5.5–7.5 0.060 0.030 1.00 16.0–18.0 3.5–5.5 . . . 0.25 . . . . . .
S20103 . . . 0.03 5.5–7.5 0.045 0.030 0.75 16.0–18.0 3.5–5.5 . . . 0.25 . . . . . .
S20153 . . . 0.03 6.4–7.5 0.045 0.015 0.75 16.0–17.5 4.0–5.0 . . . 0.10–0.25 1.00 . . .
S20161 . . . 0.15 4.0–6.0 0.040 0.040 3.0–4.0 15.0–18.0 4.0–6.0 . . . 0.08–0.20 . . . . . .
S20200 202 0.15 7.5–10.0 0.060 0.030 1.00 17.0–19.0 4.0–6.0 . . . 0.25 . . . . . .
S20400 . . . 0.030 7.0–9.0 0.040 0.030 1.00 15.0–17.0 1.50–3.00 . . . 0.15–0.30 . . . . . .
S20910 XM-19J 0.06 4.0–6.0 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
V 0.10–0.30
S21400 XM-31J 0.12 14.0–16.0 0.045 0.030 0.30–1.00 17.0–18.5 1.00 . . . 0.35 min . . . . . .
S21600 XM-17J 0.08 7.5–9.0 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 7.5–9.0 0.045 0.030 0.75 17.5–22.0 5.0–7.0 2.00–3.00 0.25–0.50 . . . . . .
S21800 . . . 0.10 7.0–9.0 0.060 0.030 3.5–4.5 16.0–18.0 8.0–9.0 . . . 0.08–0.18 . . . . . .
S24000 XM-29J 0.08 11.5–14.5 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 0.08 2.00 0.045 0.030 0.75 18.0–20.0 8.0–10.5 . . . 0.10 . . . . . .
S30403 304L 0.030 2.00 0.045 0.030 0.75 18.0–20.0 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
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 . . . . . . . . . . . .
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 . . . . . . . . . . . .
S30940 309CbG 0.08 2.00 0.045 0.030 0.75 22.0–24.0 12.0–16.0 . . . . . . . . . Cb 103C 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 103C 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 103C min,
1.10 max
A 240/A 240M – 04ae1
3
TABLE 1 Continued
UNS
DesignationB
TypeC CarbonD Manganese Phosphorus
Sulfur Silicon Chromium Nickel Molybdenum Nitrogen Copper Other
ElementsE,F
S31041 310HCbG 0.04–0.10 2.00 0.045 0.030 0.75 24.0–26.0 19.0–22.0 . . . . . . . . . Cb 103C 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 0.18–0.22 0.50–1.00 . . .
S31266 . . . 0.030 2.0–4.0 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 3 (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 3 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 . . . . . .
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 2.8–4.0 . . .
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 . . . . . .
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 3 (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 3 (C + N)
min, 0.70 max
S32615 . . . 0.07 2.00 0.045 0.030 4.8–6.0 16.5–19.5 19.0–22.0 0.30–1.50 . . . 1.50–2.50 . . .
S32654 . . . 0.020 2.0–4.0 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
S34565 . . . 0.030 5.0–7.0 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 3 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 3 C min,
1.00 max
S34800 348 0.08 2.00 0.045 0.030 0.75 17.0–19.0 9.0–13.0 . . . . . . . . . (Cb + Ta) 103C
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) 83C
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
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
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 5.5–6.5 13.0–15.0 13.0–17.0 0.75–1.50 . . . 0.75–1.50 Al 0.30
A 240/A 240M – 04ae1
4
TABLE 1 Continued
UNS
DesignationB
TypeC CarbonD Manganese Phosphorus
Sulfur Silicon Chromium Nickel Molybdenum Nitrogen Copper Other
ElementsE,F
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 4.0–6.0 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 4.0–6.0 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 . . .
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 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 . . .
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
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 0.50 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
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
(C+N) 0.030
. . . Cb 123(C+N)
min,
0.15–0.50
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 63(C+N) min,
0.50 max; Cb
0.17
S40920 . . . 0.030 1.00 0.040 0.020 1.00 10.5–11.7 0.50 . . . 0.030 . . . Ti 83(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
3(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 63(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
S41045
410S
. . .
0.08
0.030
1.00
1.00
0.040
0.040
0.030
0.030
1.00
1.00
11.5–13.5
12.0–13.0
0.60
0.50
. . .
. . .
. . .
0.030
. . .
. . .
. . .
Cb 93(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 . . . . . . . . .
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
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)]
min, 1.10 max; Al
0.15
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 53C min,
0.80 max
A 240/A 240M – 04ae1
5
TABLE 1 Continued
UNS
DesignationB
TypeC CarbonD Manganese Phosphorus
Sulfur Silicon Chromium Nickel Molybdenum Nitrogen Copper Other
ElementsE,F
S43932 . . . 0.030 1.00 0.040 0.030 1.00 17.0–19.0 0.50 . . . 0.030 . . . (Ti+Cb)
[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+(33C)] min
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 103(C+N)
min, 0.80 max
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
S44627 XM-27J 0.010N 0.40 0.020 0.020 0.40 25.0–27.5 0.50 0.75–1.50 0.015N 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
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
63(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
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,
(Ti+Cb) 63
(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
max
A Maximum, unless range or minimum is indicated.
B Designation established in accordance with Practice E 527 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 %.
† UNS number was editorially corrected.
A 240/A 240M – 04ae1
6
TABLE 2 Mechanical Test Requirements
UNS Designation TypeA Tensile Strength, min Yield Strength,B min Elongation in
2 in. or 50 mm,
min, %
Hardness, maxC Cold Bend°D
ksi MPa ksi MPa Brinell Rockwell B
Austenitic (Chromium-Nickel) (Chromium-Manganese-Nickel)
N08020 . . . 80 550 35 240 30E 217 95 not required
N08367
Sheet and Strip 100 690 45 310 30 . . . 100 not required
Plate 95 655 45 310 30 241 . . . 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 not required
N08926 . . . 94 650 43 295 35 . . . . . . not required
S20100 201-1I 75 515 38 260 40 217 95 . . .
S20100 201-2I 95 655 45 310 40 241 100 . . .
S20103 201LF 95 655 38 260 40 217 95 not required
S20153 201LNF 95 655 45 310 45 241 100 not required
S20161 . . . 125 860 50 345 40 255 25J not required
S20200 202 90 620 38 260 40 241 . . . . . .
S20400 . . . 95 655 48 330 35 241 100 not required
S20910 XM-19K
Sheet and Strip
Plate
105
100
725
690
60
55
415
380
30
35
241
241
100
100
not required
not required
S21600 XM-17J
Sheet and Strip
Plate
100
90
690
620
60
50
415
345
40
40
241
241
100
100
not required
not required
S21603 XM-18K
Sheet and Strip
Plate
100
90
690
620
60
50
415
345
40
40
241
241
100
100
not required
not required
S21800 . . . 95 655 50 345 35 241 100 not required
S24000 XM-29K
Sheet and Strip
Plate
100
100
690
690
60
55
415
380
40
40
241
241
100
100
not required
not required
S30100 301 75 515 30 205 40 217 95 not required
S30103 301LF 80 550 32 220 45 241 100 not required
S30153 301LNF 80 550 35 240 45 241 100 not required
S30200 302 75 515 30 205 40 201 92 not required
S30400 304 75 515 30 205 40 201 92 not required
S30403 304L 70 485 25 170 40 201 92 not required
S30409 304H 75 515 30 205 40 201 92 not required
S30415 . . . 87 600 42 290 40 217 95 not required
S30451 304N 80 550 35 240 30 217 95 not required
S30452 XM-21K
Sheet and Strip
Plate
90
85
620
585
50
40
345
275
30
30
241
241
100
100
not required
not required
S30453 304LN 75 515 30 205 40 217 95 not required
S30500 305 70 485 25 170 40 183 88 not required
S30600 . . . 78 540 35 240 40 . . . . . . . . .
S30601 . . . 78 540 37 255 30 . . . . . . not required
S30615 . . . 90 620 40 275 35 217 95 not required
S30815 . . . 87 600 45 310 40 217 95 . . .
S30908 309S 75 515 30 205 40 217 95 not required
S30909 309HF 75 515 30 205 40 217 95 not required
S30940 309CbF 75 515 30 205 40 217 95 not required
S30941 309HCbF 75 515 30 205 40 217 95 not required
A 240/A 240M – 04ae1
7
TABLE 2 Continued
UNS Designation TypeA Tensile Strength, min Yield Strength,B min Elongation in
2 in. or 50 mm,
min, %
Hardness, maxC Cold Bend°D
ksi MPa ksi MPa Brinell Rockwell B
S31008 310S 75 515 30 205 40 217 95 not required
S31009 310HF 75 515 30 205 40 217 95 not required
S31040 310CbF 75 515 30 205 40 217 95 not required
S31041 310HCbF 75 515 30 205 40 217 95 not required
S31050 310 MoLNF
t # 0.25 in. 84 580 39 270 25 217 95 not required
t > 0.25 in. 78 540 37 255 25 217 95 not required
S31060 . . . 87 600 41 280 40 217 95 not required
S31254
Sheet and Strip 100 690 45 310 35 223 96 not required
Plate 95 655 45 310 35 223 96 not required
S31266 . . . 109 750 61 420 35 . . . . . . not required
S31277 . . . 112 770 52 360 40 . . . . . . not required
S31600 316 75 515 30 205 40 217 95 not required
S31603 316L 70 485 25 170 40 217 95 not required
S31609 316H 75 515 30 205 40 217 95 not required
S31635 316TiF 75 515 30 205 40 217 95 not required
S31640 316CbF 75 515 30 205 30 217 95 not required
S31651 316N 80 550 35 240 35 217 95 not required
S31653 316LN 75 515 30 205 40 217 95 not required
S31700 317 75 515 30 205 35 217 95 not required
S31703 317L 75 515 30 205 40 217 95 not required
S31725 317LMF 75 515 30 205 40 217 95 not required
S31726 317LMNF 80 550 35 240 40 223 96 not required
S31727 . . . 80 550 36 245 35 217 96 not required
S31753 317LN 80 550 35 240 40 217 95 not required
S32050 . . . 98 675 48 330 40 250 . . . not required
S32053 . . . 93 640 43 295 40 217 96 not required
S32100 321 75 515 30 205 40 217 95 not required
S32109 321H 75 515 30 205 40 217 95 not required
S32615L . . . 80 550 32 220 25 . . . . . . not required
S32654 . . . 109 750 62 430 40 250 . . . not required
S33228 . . . 73 500 27 185 30 217 95 not required
S33400 334F 70 485 25 170 30 . . . 92 not required
S34565 . . . 115 795 60 415 35 241 100 not required
S34700 347 75 515 30 205 40 201 92 not required
S34709 347H 75 515 30 205 40 201 92 not required
S34800 348 75 515 30 205 40 201 92 not required
S34809 348H 75 515 30 205 40 201 92 not required
S35045 . . . 70 485 25 170 35 . . . . . . not required
S35135
Sheet and Strip . . . 80 550 30 205 30 . . . . . . not required
Plate . . . 75 515 30 205 30 . . . . . . not required
S35315 . . . 94 650 39 270 40 217 95 not required
S38100 XM-15K 75 515 30 205 40 217 95 not required
S38815 . . . 78 540 37 255 30 . . . . . . not required
Duplex (Austenitic-Ferritic)
S31200 . . . 100 690 65 450 25 293 31J not required
S31260 . . . 100 690 70 485 20 290 . . . . . .
S31803 . . . 90 620 65 450 25 293 31J not required
S32001 . . . 90 620 65 450 25 . . . 25J not required
S32003 . . . 90 620 65 450 25 293 31J not required
S32101 . . .
A 240/A 240M – 04ae1
8
TABLE 2 Continued
UNS Designation TypeA Tensile Strength, min Yield Strength,B min Elongation in
2 in. or 50 mm,
min, %
Hardness, maxC Cold Bend°D
ksi MPa ksi MPa Brinell Rockwell B
t # 0.25 in.
[6.4 mm]
101 700 77 530 30 290 . . . not required
t > 0.25 in.
[6.4 mm]
94 650 65 450 30 290 . . . not required
S32205 2205F 95 655 65 450 25 293 31J not required
S32304 2304F 87 600 58 400 25 290 32J not required
S32506 . . . 90 620 65 450 18 302 32J not required
S32520 . . . 112 770 80 550 25 310 . . . not required
S32550 255F 110 760 80 550 15 302 32J not required
S32750 2507F 116 795 80 550 15 310 32J not required
S32760 . . . 108 750 80 550 25 270 . . . not required
S32900 329 90 620 70 485 15 269 28J not required
S32906 . . .
t < 0.4 in.
[1.0 mm]
116 800 94 650 25.0 310 32J not required
t $ 0.4 in.
[1.0 mm]
109 750 80 550 25.0 310 32J not required
S32950M . . . 100 690 70 485 15 293 32J not required
S39274† . . . 116 800 80 550 15 310 32J not required
Ferritic or Martensitic (Chromium)
S32803 . . . 87 600 72 500 16 241 100 not required
S40500 405 60 415 25 170 20 179 88 180
S40900N 409N
S40910 . . . 55 380 25 170 20 179 88 180
S40920 . . . 55 380 25 170 20 179 88 180
S40930 . . . 55 380 25 170 20 179 88 180
S40945 . . . 55 380 30 205 22 . . . 80 180
S40975 . . . 60 415 40 275 20 197 92 180
S40977 . . . 65 450 41 280 18 180 88 not required
S41000 410 65 450 30 205 20 217 96 180
S41003 . . . 66 455 40 275 18 223 20J not required
S41008 410S 60 415 30 205 22O 183 89 180
S41045 . . . 55 380 30 205 22 . . . 80 180
S41050 . . . 60 415 30 205 22 183 89 180
S41500 . . . 115 795 90 620 15 302 32J not required
S42035 . . . 80 550 55 380 16 180 88 not required
S42900 429F 65 450 30 205 22O 183 89 180
S43000 430 65 450 30 205 22O 183 89 180
S43035 439 60 415 30 205 22 183 89 180
S43400 434 65 450 35 240 22 . . . 89 180
S43600 436 65 450 35 240 22 . . . 89 180
S43932 . . . 60 415 30 205 22 183 89 180
S43940 . . . 62 430 36 250 18 180 88 not required
A 240/A 240M – 04ae1
9
TABLE 2 Continued
UNS Designation TypeA Tensile Strength, min Yield Strength,B min Elongation in
2 in. or 50 mm,
min, %
Hardness, maxC Cold Bend°D
ksi MPa ksi MPa Brinell Rockwell B
S44400 . . . 60 415 40 275 20 217 96 180
S44500 . . . 62 427 30 205 22 . . . 83 180
S44626 XM-33K 68 470 45 310 20 217 96 180
S44627 XM-27K 65 450 40 275 22 187 90 180
S44635 . . . 90 620 75 515 20 269 28J 180
S44660 . . . 85 585 65 450 18 241 100 180
S44700 . . . 80 550 60 415 20 223 20J 180
S44735 . . . 80 550 60 415 18 255 25J 180
S44800 . . . 80 550 60 415 20 223 20J 180
S46800 . . . 60 415 30 205 22 . . . 90 180
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 A 370. Unless otherwise specified (see Specification A 480/A 480M, paragraph 4.1.11, Ordering
Information), an alternative method of determining yield strength may be based on total extension under load of 0.5 %.
C Either Brinell or Rockwell B Hardness is permissible.
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).
† UNS number was editorially corrected.
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 Rockwell C scale.
K Naming system developed and applied by ASTM.
L For S32615, the grain size as determined in accordance with the Test Methods E 112, Comparison Method, Plate II, shall be No. 3 or finer.
M Prior to Specification A 240 – 89b, the tensile value for S32950 was 90 ksi.
N 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.
O Material 0.050 in (1.27 mm) and under in thickness shall have a minimum elongation of 20 %.
A 240/A 240M – 04ae1
10
SUPPLEMENTARY REQUIREMENTS
A supplementary requirement shall apply only when specified in the purchase order.
S1. Charpy Impact Testing of Plate
S1.1 Charpy impact tests shall be conducted in accordance
with Test Methods and Definitions A 370.
S1.2 Number of Tests—One impact test (3 specimens) shall
be made from one plate per heat treatment lot in the final heat
treated condition.
S1.3 Orientation of Test Specimens—Unless specified as
transverse specimens (long axis of the specimen transverse to
the final rolling direction, root of the notch perpendicular to the
rolling face) on the purchase order, the orientation of the
specimens shall be longitudinal (long axis of the specimen
parallel to the final rolling direction, root of the notch perpendicular
to the rolling face). The manufacturer is permitted to
test transverse specimens provided that such tests meet the
acceptance criteria applicable to longitudinal specimens. Unless
otherwise specified on the purchase order, the specimens
shall be taken so as to include the mid-thickness of the product.
S1.4 Test Temperature—The purchaser shall specify the
test temperature. The manufacturer is permitted to test specimens
at a temperature lower than that specified by the
purchaser, provided that such tests shall meet the acceptance
criteria applicable to specimens tested at the specified temperature
(see Note ).
NOTE —Test Methods A 923, Method B, applicable to some duplex
(austenitic-ferritic) stainless steels as listed in Test Methods A 923, uses a
Charpy impact test for the purpose of determining the absence of
detrimental intermetallic phases. Method B specifies a test temperature
and acceptance criterion, expressed as impact energy, for each type of
steel covered. It may be economical for the Charpy impact tests performed
on duplex stainless steels covered in both Specification A 240 and Test
Methods A 923 to be performed at the lower of the temperatures specified
by this supplementary requirement and Test Methods A 923 Method B,
with measurement of both lateral expansion and impact energy.
S1.5 Acceptance Limit —Unless otherwise specified on the
purchase order, each of the three specimens tested shall show
a lateral expansion opposite the notch of not less than 0.015 in.
[0.38 mm].
S1.6 Records—The recorded results shall include the
specimen orientation, specimen size, test temperature, absorbed
energy values (if required), and lateral expansion
opposite the notch.
S2. Materials for High-Temperature Service
S2.1 Unless an H grade has been ordered, this supplementary
requirement shall be specified for ASME Code applications
for service above 1000°F [540°C].
S2.2 The user is permitted to use an austenitic stainless
steel as the corresponding H grade when the material meets all
requirements of the H grade including chemistry, annealing
temperature, and grain size (see Section 6).
S2.3 The user is permitted to use an L grade austenitic
stainless steel for service above 1000°F [540°C], subject to the
applicable allowable stress table of the ASME Code, when the
material meets all requirements of this specification and the
grain size is ASTM No. 7 or coarser as determined in
accordance with Test Method E 112. The grain size shall be
reported on a Certified Test Report.
SUMMARY OF CHANGES
This section identifies the location of selected changes to this standard that have been incorporated since the A 240/A 240M-
04 issue. For the convenience of the user, Committee A01 has highlighted those changes that impact the use of this standard.
This section may also include descriptions of changes or reasons for changes, or both. (Approved March 1, 2004.)
(1) Added S31727 to Tables 1 and 2.
(2) Added S32053 to Tables 1 and 2.
(3) Added S32506 to Tables 1 and 2.
(4) Added S39274 to Tables 1 and 2.
A 240/A 240M – 04ae1
11
This section identifies the location of selected changes to this standard that have been incorporated since the A 240/A 240M-
03c issue. For the convenience of the user, Committee A01 has highlighted those changes that impact the use of this standard.
This section may also include descriptions of changes or reasons for changes, or both. (Approved Jan. 1, 2004.)
(1) Added new grade, UNS S31060, to Section 6 and Tables 1
and 2.
This section identifies the location of selected changes to this standard that have been incorporated since the A 240/A 240M-
03b issue. For the convenience of the user, Committee A01 has highlighted those changes that impact the use of this standard.
This section may also include descriptions of changes or reasons for changes, or both. (Approved Sept. 10, 2003.)
(1) In Table 2, HBN and HRB for S20100, S30451, and
S30453 were reconciled with those in Specification A 666,
annealed condition.
This section identifies the location of selected changes to this standard that have been incorporated since the A 240/A 240M-
03a issue. For the convenience of the user, Committee A01 has highlighted those changes that impact the use of this standard.
This section may also include descriptions of changes or reasons for changes, or both. (Approved May 10, 2003.)
(1) Added new alloy UNS S31277 to Tables 1 and 2.
This section identifies the location of selected changes to this standard that have been incorporated since the A 240/A 240M-
03 issue. For the convenience of the user, Committee A01 has highlighted those changes that impact the use of this standard.
This section may also include descriptions of changes or reasons for changes, or both. (Approved April 10, 2003.)
(1) Added UNS S32906 to Tables 1 and 2. (2) Added UNS S32101 to Tables 1 and 2.
This section identifies the location of selected changes to this standard that have been incorporated since the A 240/A 240M-
02a issue. For the convenience of the user, Committee A01 has highlighted those changes that impact the use of this standard.
This section may also include descriptions of changes or reasons for changes, or both. (Approved February 10, 2003.)
(1) Added a new duplex stainless steel (S32003) to Tables 1
and 2.
A 240/A 240M – 04ae1

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