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ASTM A240/A240M S30615 vs ASTM A959 304H

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

ASTM A240/A240M S30615 (ASTM A240/A240M:2025) and ASTM A959 304H (ASTM A959:2011) are both steel grades. Both fall under the Stainless Steel category. ASTM A240/A240M S30615 is typically used for pressure vessels and general applications (plate, sheet and strip), while ASTM A959 304H is commonly used for wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1). ASTM A240/A240M S30615 is defined under ASTM International, originating from United States, while ASTM A959 304H is defined under ASTM International, originating from United States.

As per chemical composition, ASTM A240/A240M S30615 vs ASTM A959 304H is a 69.9% 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 69.9%.

Frequently Compared With ASTM A240/A240M S30615:
EN 10088-1 1.4006 GOST 5632 08X18H10 EN 10088-1 1.4301 EN 10088-1 1.4845 IS 1570 (Part 7) 12Cr12Ni2Mo ASTM A959 .- GB/T 3280 06Cr19Ni10 GOST 5632 06Kh23N28 EN 10088-1 1.4401 IS 1570 (Part 7) 11Cr17Ni13W3TiH IS 1570 (Part 7) 12Cr12MoH IS 1570 (Part 7) 12Cr12MoVH
Match Breakdown
CHEMISTRY MATCH
69.9%
MECHANICAL MATCH
No shared data
OVERALL
69.9%
Specifications
Property ASTM A240/A240M S30615 ASTM A959 304H
Standard ASTM A240/A240M:2025 ASTM A959:2011
Category Stainless Steel Stainless Steel
C (%) 0.16-0.24 0.04-0.10
Mn (%) <=2.00 <=2.00
P (%) <=0.030 <=0.045
S (%) <=0.030 <=0.030
Si (%) 3.2-4.0 <=1.00
Cr (%) 17.0-19.5 18.0-20.0
Ni (%) 13.5-16.0 8.0-11.0
Al (%) 0.80-1.50 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 S30615 ASTM A959 304H
Tensile Strength >=620 MPa Not specified
Yield Strength >=275 MPa Not specified
Elongation >=35% 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 S30615
Pressure vessels and general applications (plate, sheet and strip)
ASTM A959 304H
Wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1)
Key Differences
Can ASTM A240/A240M S30615 Be Substituted With ASTM A959 304H?
ASTM A240/A240M S30615 and ASTM A959 304H 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.
On M-EX Right Now
ASTM A240/A240M S30615
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ASTM A959 304H
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Frequently Asked Questions
What is the difference between ASTM A240/A240M S30615 and ASTM A959 304H?
ASTM A240/A240M S30615 specifies Al which is not specified for ASTM A959 304H.
Can ASTM A240/A240M S30615 be substituted with ASTM A959 304H?
ASTM A240/A240M S30615 and ASTM A959 304H 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.