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ASTM A240/A240M S30435 vs ASTM A959 301

Strong Match — 85% match based on chemical composition and mechanical property overlap.

ASTM A240/A240M S30435 (ASTM A240/A240M:2025) and ASTM A959 301 (ASTM A959:2011) are both steel grades. Both fall under the Stainless Steel category. ASTM A240/A240M S30435 is typically used for pressure vessels and general applications (plate, sheet and strip), while ASTM A959 301 is commonly used for wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1). ASTM A240/A240M S30435 is defined under ASTM International, originating from United States, while ASTM A959 301 is defined under ASTM International, originating from United States.

As per chemical composition, ASTM A240/A240M S30435 vs ASTM A959 301 is a 85% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a strong match overall at 85%.

Frequently Compared With ASTM A240/A240M S30435:
EN 10088-1 1.4845 GOST 5632 06Kh23N28 ASTM A959 .- EN 10088-1 1.4006 EN 10088-1 1.4301 EN 10088-1 1.4401 GOST 5632 08X18H10 IS 1570 (Part 7) 11Cr17Ni13W3TiH IS 1570 (Part 7) 12Cr12MoH IS 1570 (Part 7) 12Cr12MoVH IS 1570 (Part 7) 12Cr12Ni2Mo GB/T 3280 06Cr19Ni10
Match Breakdown
CHEMISTRY MATCH
85%
MECHANICAL MATCH
No shared data
OVERALL
85%
Specifications
Property ASTM A240/A240M S30435 ASTM A959 301
Standard ASTM A240/A240M:2025 ASTM A959:2011
Category Stainless Steel Stainless Steel
C (%) <=0.08 <=0.15
Mn (%) <=2.00 <=2.00
P (%) <=0.045 <=0.045
S (%) <=0.030 <=0.030
Si (%) <=1.00 <=1.00
Cr (%) 16.0-18.0 16.0-18.0
Ni (%) 7.0-9.0 6.0-8.0
Cu (%) 1.50-3.00 Not specified
N (%) Not specified <=0.10
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 S30435 ASTM A959 301
Tensile Strength >=450 MPa Not specified
Yield Strength >=155 MPa Not specified
Elongation >=45% Not specified
Hardness <=187 HB Not specified
Condition Plate, sheet and strip; yield by 0.2 percent offset Not specified
Typical Applications
ASTM A240/A240M S30435
Pressure vessels and general applications (plate, sheet and strip)
ASTM A959 301
Wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1)
Key Differences
Can ASTM A240/A240M S30435 Be Substituted With ASTM A959 301?
ASTM A240/A240M S30435 and ASTM A959 301 overlap closely enough on chemistry and mechanical properties that ASTM A959 301 is often considered as a substitute for ASTM A240/A240M S30435 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
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ASTM A240/A240M S30435
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ASTM A959 301
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Frequently Asked Questions
What is the difference between ASTM A240/A240M S30435 and ASTM A959 301?
ASTM A240/A240M S30435 specifies Cu which is not specified for ASTM A959 301. ASTM A959 301 specifies N which is not specified for ASTM A240/A240M S30435.
Can ASTM A240/A240M S30435 be substituted with ASTM A959 301?
ASTM A240/A240M S30435 and ASTM A959 301 overlap closely enough on chemistry and mechanical properties that ASTM A959 301 is often considered as a substitute for ASTM A240/A240M S30435 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.