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ASTM A240/A240M S31277 vs ASTM A959 S32654

Related Material — 66.9% match based on chemical composition and mechanical property overlap.

ASTM A240/A240M S31277 (ASTM A240/A240M:2025) and ASTM A959 S32654 (ASTM A959:2011) are both steel grades. Both fall under the Stainless Steel category. ASTM A240/A240M S31277 is typically used for pressure vessels and general applications (plate, sheet and strip), while ASTM A959 S32654 is commonly used for wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1). ASTM A240/A240M S31277 is defined under ASTM International, originating from United States, while ASTM A959 S32654 is defined under ASTM International, originating from United States.

As per chemical composition, ASTM A240/A240M S31277 vs ASTM A959 S32654 is a 66.9% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a related material overall at 66.9%.

Frequently Compared With ASTM A240/A240M S31277:
GOST 5632 08X18H10 IS 1570 (Part 7) 12Cr12MoH IS 1570 (Part 7) 12Cr12MoVH GB/T 3280 06Cr19Ni10 GOST 5632 06Kh23N28 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) 12Cr12Ni2Mo ASTM A959 .-
Match Breakdown
CHEMISTRY MATCH
66.9%
MECHANICAL MATCH
No shared data
OVERALL
66.9%
Specifications
Property ASTM A240/A240M S31277 ASTM A959 S32654
Standard ASTM A240/A240M:2025 ASTM A959:2011
Category Stainless Steel Stainless Steel
C (%) <=0.020 <=0.020
Mn (%) <=3.00 2.0-4.0
P (%) <=0.030 <=0.030
S (%) <=0.010 <=0.005
Si (%) <=0.50 <=0.50
Cr (%) 20.5-23.0 24.0-25.0
Ni (%) 26.0-28.0 21.0-23.0
Mo (%) 6.5-8.0 7.0-8.0
N (%) 0.30-0.40 0.45-0.55
Cu (%) 0.50-1.50 0.30-0.60
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 S31277 ASTM A959 S32654
Tensile Strength >=770 MPa Not specified
Yield Strength >=360 MPa Not specified
Elongation >=40% Not specified
Condition Plate, sheet and strip; yield by 0.2 percent offset Not specified
Typical Applications
ASTM A240/A240M S31277
Pressure vessels and general applications (plate, sheet and strip)
ASTM A959 S32654
Wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1)
Can ASTM A240/A240M S31277 Be Substituted With ASTM A959 S32654?
ASTM A240/A240M S31277 and ASTM A959 S32654 share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.
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ASTM A240/A240M S31277
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ASTM A959 S32654
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Frequently Asked Questions
What is the difference between ASTM A240/A240M S31277 and ASTM A959 S32654?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can ASTM A240/A240M S31277 be substituted with ASTM A959 S32654?
ASTM A240/A240M S31277 and ASTM A959 S32654 share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.