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ASTM A959 S32950 vs ASTM A240/A240M S82561

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

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

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