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ASTM A240/A240M S44635 vs ASTM A959 2507

Related Material — 69.9% match based on chemical composition and mechanical property overlap.

ASTM A240/A240M S44635 (ASTM A240/A240M:2025) and ASTM A959 2507 (ASTM A959:2011) are both steel grades. Both fall under the Stainless Steel category. ASTM A240/A240M S44635 is typically used for pressure vessels and general applications (plate, sheet and strip), while ASTM A959 2507 is commonly used for wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1). ASTM A240/A240M S44635 is defined under ASTM International, originating from United States, while ASTM A959 2507 is defined under ASTM International, originating from United States.

As per chemical composition, ASTM A240/A240M S44635 vs ASTM A959 2507 is a 73.4% 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 69.9%.

Frequently Compared With ASTM A240/A240M S44635:
EN 10088-1 1.4845 ASTM A959 25-4-4 ASTM A959 26-3-3 EN 10088-1 1.4301 EN 10088-1 1.4401 GOST 5632 08X18H10 EN 10088-1 1.4006 IS 1570 (Part 7) 12Cr12MoH IS 1570 (Part 7) 12Cr12MoVH ASTM A959 .- ASTM A959 29-4C GB/T 3280 06Cr19Ni10
Match Breakdown
CHEMISTRY MATCH
73.4%
MECHANICAL MATCH
No shared data
OVERALL
69.9%
Specifications
Property ASTM A240/A240M S44635 ASTM A959 2507
Standard ASTM A240/A240M:2025 ASTM A959:2011
Category Stainless Steel Stainless Steel
C (%) <=0.025 <=0.030
Mn (%) <=1.00 <=1.20
P (%) <=0.040 <=0.035
S (%) <=0.030 <=0.020
Si (%) <=0.75 <=0.80
Cr (%) 24.5-26.0 24.0-26.0
Ni (%) 3.5-4.5 6.0-8.0
Mo (%) 3.5-4.5 3.0-5.0
N (%) <=0.035 0.24-0.32
Cu (%) Not specified <=0.50
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 S44635 ASTM A959 2507
Tensile Strength >=620 MPa Not specified
Yield Strength >=515 MPa Not specified
Elongation >=20% Not specified
Hardness <=269 HB Not specified
Condition Plate, sheet and strip; yield by 0.2 percent offset Not specified
Typical Applications
ASTM A240/A240M S44635
Pressure vessels and general applications (plate, sheet and strip)
ASTM A959 2507
Wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1)
Key Differences
Can ASTM A240/A240M S44635 Be Substituted With ASTM A959 2507?
ASTM A240/A240M S44635 and ASTM A959 2507 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 S44635
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ASTM A959 2507
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Frequently Asked Questions
What is the difference between ASTM A240/A240M S44635 and ASTM A959 2507?
ASTM A959 2507 specifies Cu which is not specified for ASTM A240/A240M S44635.
Can ASTM A240/A240M S44635 be substituted with ASTM A959 2507?
ASTM A240/A240M S44635 and ASTM A959 2507 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.