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ASTM A959 334 vs ASTM A240/A240M S33400

Strong Match — 100% match based on chemical composition and mechanical property overlap.

ASTM A959 334 (ASTM A959:2011) and ASTM A240/A240M S33400 (ASTM A240/A240M:2025) are both steel grades. Both fall under the Stainless Steel category. ASTM A959 334 is typically used for wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1), while ASTM A240/A240M S33400 is commonly used for pressure vessels and general applications (plate, sheet and strip). ASTM A959 334 is defined under ASTM International, originating from United States, while ASTM A240/A240M S33400 is defined under ASTM International, originating from United States.

As per chemical composition, ASTM A959 334 vs ASTM A240/A240M S33400 is a 100% 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 100%.

Frequently Compared With ASTM A959 334:
EN 10088-1 1.4401 GB/T 3280 06Cr19Ni10 EN 10088-1 1.4301 IS 1570 (Part 7) 11Cr17Ni13W3TiH ASTM A959 .- GOST 5632 06Kh23N28 GOST 5632 08X18H10 EN 10088-1 1.4006 EN 10088-1 1.4845 IS 1570 (Part 7) 12Cr12MoH IS 1570 (Part 7) 12Cr12MoVH IS 1570 (Part 7) 12Cr12Ni2Mo
Match Breakdown
CHEMISTRY MATCH
100%
MECHANICAL MATCH
No shared data
OVERALL
100%
Specifications
Property ASTM A959 334 ASTM A240/A240M S33400
Standard ASTM A959:2011 ASTM A240/A240M:2025
Category Stainless Steel Stainless Steel
Al (%) 0.15-0.60 0.15-0.60
C (%) <=0.08 <=0.08
Cr (%) 18.0-20.0 18.0-20.0
Mn (%) <=1.00 <=1.00
Ni (%) 19.0-21.0 19.0-21.0
P (%) <=0.030 <=0.030
S (%) <=0.015 <=0.015
Si (%) <=1.00 <=1.00
Ti (%) 0.15-0.60 0.15-0.60
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property ASTM A959 334 ASTM A240/A240M S33400
Tensile Strength Not specified >=485 MPa
Yield Strength Not specified >=170 MPa
Elongation Not specified >=30%
Hardness Not specified <=92 HRBW
Condition Not specified Plate, sheet and strip; yield by 0.2 percent offset
Typical Applications
ASTM A959 334
Wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1)
ASTM A240/A240M S33400
Pressure vessels and general applications (plate, sheet and strip)
Can ASTM A959 334 Be Substituted With ASTM A240/A240M S33400?
ASTM A959 334 and ASTM A240/A240M S33400 overlap closely enough on chemistry and mechanical properties that ASTM A240/A240M S33400 is often considered as a substitute for ASTM A959 334 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 A959 334
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ASTM A240/A240M S33400
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Frequently Asked Questions
What is the difference between ASTM A959 334 and ASTM A240/A240M S33400?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can ASTM A959 334 be substituted with ASTM A240/A240M S33400?
ASTM A959 334 and ASTM A240/A240M S33400 overlap closely enough on chemistry and mechanical properties that ASTM A240/A240M S33400 is often considered as a substitute for ASTM A959 334 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.