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ASTM A240/A240M S82561 vs ASTM A959 S32950

Close Alternative — 75.7% match based on chemical composition and mechanical property overlap.

ASTM A240/A240M S82561 (ASTM A240/A240M:2025) and ASTM A959 S32950 (ASTM A959:2011) are both steel grades. Both fall under the Stainless Steel category. ASTM A240/A240M S82561 is typically used for pressure vessels and general applications (plate, sheet and strip), while ASTM A959 S32950 is commonly used for wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1). ASTM A240/A240M S82561 is defined under ASTM International, originating from United States, while ASTM A959 S32950 is defined under ASTM International, originating from United States.

As per chemical composition, ASTM A240/A240M S82561 vs ASTM A959 S32950 is a 75.7% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a close alternative overall at 75.7%.

Frequently Compared With ASTM A240/A240M S82561:
GOST 5632 06Kh23N28 GOST 5632 08X18H10 GB/T 3280 06Cr19Ni10 IS 1570 (Part 7) 12Cr12MoH IS 1570 (Part 7) 12Cr12Ni2Mo ASTM A959 .- EN 10088-1 1.4006 EN 10088-1 1.4301 EN 10088-1 1.4401 EN 10088-1 1.4845 IS 1570 (Part 7) 11Cr17Ni13W3TiH IS 1570 (Part 7) 12Cr12MoVH
Match Breakdown
CHEMISTRY MATCH
75.7%
MECHANICAL MATCH
No shared data
OVERALL
75.7%
Specifications
Property ASTM A240/A240M S82561 ASTM A959 S32950
Standard ASTM A240/A240M:2025 ASTM A959:2011
Category Stainless Steel Stainless Steel
C (%) <=0.030 <=0.030
Mn (%) <=1.50 <=2.00
P (%) <=0.040 <=0.035
S (%) <=0.030 <=0.010
Si (%) <=1.00 <=0.60
Cr (%) 23.0-27.0 26.0-29.0
Ni (%) 4.0-6.0 3.5-5.2
Mo (%) 1.00-2.00 1.00-2.50
N (%) 0.15-0.19 0.15-0.35
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property ASTM A240/A240M S82561 ASTM A959 S32950
Tensile Strength >=690 MPa Not specified
Yield Strength >=485 MPa Not specified
Elongation >=18% Not specified
Hardness <=302 HB Not specified
Condition Plate, sheet and strip; yield by 0.2 percent offset Not specified
Typical Applications
ASTM A240/A240M S82561
Pressure vessels and general applications (plate, sheet and strip)
ASTM A959 S32950
Wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1)
Can ASTM A240/A240M S82561 Be Substituted With ASTM A959 S32950?
ASTM A240/A240M S82561 and ASTM A959 S32950 are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.
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ASTM A240/A240M S82561
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ASTM A959 S32950
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Frequently Asked Questions
What is the difference between ASTM A240/A240M S82561 and ASTM A959 S32950?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can ASTM A240/A240M S82561 be substituted with ASTM A959 S32950?
ASTM A240/A240M S82561 and ASTM A959 S32950 are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.