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ASTM A240/A240M S31060 vs ASTM A959 309S

Close Alternative — 70.7% match based on chemical composition and mechanical property overlap.

ASTM A240/A240M S31060 (ASTM A240/A240M:2025) and ASTM A959 309S (ASTM A959:2011) are both steel grades. Both fall under the Stainless Steel category. ASTM A240/A240M S31060 is typically used for pressure vessels and general applications (plate, sheet and strip), while ASTM A959 309S is commonly used for wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1). ASTM A240/A240M S31060 is defined under ASTM International, originating from United States, while ASTM A959 309S is defined under ASTM International, originating from United States.

As per chemical composition, ASTM A240/A240M S31060 vs ASTM A959 309S is a 70.7% 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 70.7%.

Frequently Compared With ASTM A240/A240M S31060:
EN 10088-1 1.4845 ASTM A959 .- GB/T 3280 06Cr19Ni10 GOST 5632 06Kh23N28 GOST 5632 08X18H10 EN 10088-1 1.4006 EN 10088-1 1.4301 EN 10088-1 1.4401 IS 1570 (Part 7) 11Cr17Ni13W3TiH IS 1570 (Part 7) 12Cr12MoH IS 1570 (Part 7) 12Cr12MoVH IS 1570 (Part 7) 12Cr12Ni2Mo
Match Breakdown
CHEMISTRY MATCH
70.7%
MECHANICAL MATCH
No shared data
OVERALL
70.7%
Specifications
Property ASTM A240/A240M S31060 ASTM A959 309S
Standard ASTM A240/A240M:2025 ASTM A959:2011
Category Stainless Steel Stainless Steel
C (%) 0.05-0.10 <=0.08
Mn (%) <=1.00 <=2.00
P (%) <=0.040 <=0.045
S (%) <=0.030 <=0.030
Si (%) <=0.50 <=1.00
Cr (%) 22.0-24.0 22.0-24.0
Ni (%) 10.0-12.5 12.0-15.0
N (%) 0.18-0.25 Not specified
B (%) 0.001-0.010 Not specified
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 S31060 ASTM A959 309S
Tensile Strength >=600 MPa Not specified
Yield Strength >=280 MPa Not specified
Elongation >=40% Not specified
Hardness <=217 HB Not specified
Condition Plate, sheet and strip; yield by 0.2 percent offset Not specified
Typical Applications
ASTM A240/A240M S31060
Pressure vessels and general applications (plate, sheet and strip)
ASTM A959 309S
Wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1)
Key Differences
Can ASTM A240/A240M S31060 Be Substituted With ASTM A959 309S?
ASTM A240/A240M S31060 and ASTM A959 309S 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 S31060
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ASTM A959 309S
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Frequently Asked Questions
What is the difference between ASTM A240/A240M S31060 and ASTM A959 309S?
ASTM A240/A240M S31060 specifies N, B which are not specified for ASTM A959 309S.
Can ASTM A240/A240M S31060 be substituted with ASTM A959 309S?
ASTM A240/A240M S31060 and ASTM A959 309S 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.