Post Stock Login Register

ASTM A240/A240M S32950 vs ASTM A959 S31200

Close Alternative — 70.5% match based on chemical composition and mechanical property overlap.

ASTM A240/A240M S32950 (ASTM A240/A240M:2025) and ASTM A959 S31200 (ASTM A959:2011) are both steel grades. Both fall under the Stainless Steel category. ASTM A240/A240M S32950 is typically used for pressure vessels and general applications (plate, sheet and strip), while ASTM A959 S31200 is commonly used for wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1). ASTM A240/A240M S32950 is defined under ASTM International, originating from United States, while ASTM A959 S31200 is defined under ASTM International, originating from United States.

As per chemical composition, ASTM A240/A240M S32950 vs ASTM A959 S31200 is a 70.5% 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 70.5%.

Frequently Compared With ASTM A240/A240M S32950:
GOST 5632 08X18H10 GOST 5632 06Kh23N28 EN 10088-1 1.4401 IS 1570 (Part 7) 12Cr12MoH IS 1570 (Part 7) 12Cr12Ni2Mo EN 10088-1 1.4006 EN 10088-1 1.4301 IS 1570 (Part 7) 12Cr12MoVH EN 10088-1 1.4845 IS 1570 (Part 7) 11Cr17Ni13W3TiH ASTM A959 .- GB/T 3280 06Cr19Ni10
Match Breakdown
CHEMISTRY MATCH
70.5%
MECHANICAL MATCH
No shared data
OVERALL
70.5%
Specifications
Property ASTM A240/A240M S32950 ASTM A959 S31200
Standard ASTM A240/A240M:2025 ASTM A959:2011
Category Stainless Steel Stainless Steel
C (%) <=0.030 <=0.030
Mn (%) <=2.00 <=2.00
P (%) <=0.035 <=0.045
S (%) <=0.010 <=0.030
Si (%) <=0.60 <=1.00
Cr (%) 26.0-29.0 24.0-26.0
Ni (%) 3.5-5.2 5.5-6.5
Mo (%) 1.00-2.50 1.20-2.00
N (%) 0.15-0.35 0.14-0.20
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 S32950 ASTM A959 S31200
Tensile Strength >=690 MPa Not specified
Yield Strength >=485 MPa Not specified
Elongation >=15% Not specified
Hardness <=293 HB Not specified
Condition Plate, sheet and strip; yield by 0.2 percent offset Not specified
Typical Applications
ASTM A240/A240M S32950
Pressure vessels and general applications (plate, sheet and strip)
ASTM A959 S31200
Wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1)
Can ASTM A240/A240M S32950 Be Substituted With ASTM A959 S31200?
ASTM A240/A240M S32950 and ASTM A959 S31200 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.
On M-EX Right Now
ASTM A240/A240M S32950
0 active listings and RFQs →
ASTM A959 S31200
0 active listings and RFQs →
Frequently Asked Questions
What is the difference between ASTM A240/A240M S32950 and ASTM A959 S31200?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can ASTM A240/A240M S32950 be substituted with ASTM A959 S31200?
ASTM A240/A240M S32950 and ASTM A959 S31200 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.