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ASTM A959 S34565 vs ASTM A240/A240M S34565

Strong Match — 97.2% match based on chemical composition and mechanical property overlap.

ASTM A959 S34565 (ASTM A959:2011) and ASTM A240/A240M S34565 (ASTM A240/A240M:2025) are both steel grades. Both fall under the Stainless Steel category. ASTM A959 S34565 is typically used for wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1), while ASTM A240/A240M S34565 is commonly used for pressure vessels and general applications (plate, sheet and strip). ASTM A959 S34565 is defined under ASTM International, originating from United States, while ASTM A240/A240M S34565 is defined under ASTM International, originating from United States.

As per chemical composition, ASTM A959 S34565 vs ASTM A240/A240M S34565 is a 97.2% 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 97.2%.

Frequently Compared With ASTM A959 S34565:
EN 10088-1 1.4301 ASTM A959 .- GB/T 3280 06Cr19Ni10 GOST 5632 06Kh23N28 GOST 5632 08X18H10 EN 10088-1 1.4006 EN 10088-1 1.4401 IS 1570 (Part 7) 11Cr17Ni13W3TiH IS 1570 (Part 7) 12Cr12MoH IS 1570 (Part 7) 12Cr12MoVH IS 1570 (Part 7) 12Cr12Ni2Mo ASTM A959 2507
Match Breakdown
CHEMISTRY MATCH
97.2%
MECHANICAL MATCH
No shared data
OVERALL
97.2%
Specifications
Property ASTM A959 S34565 ASTM A240/A240M S34565
Standard ASTM A959:2011 ASTM A240/A240M:2025
Category Stainless Steel Stainless Steel
C (%) <=0.030 <=0.030
Cb (%) <=0.10 Not specified
Cr (%) 23.0-25.0 23.0-25.0
Mn (%) 5.0-7.0 5.00-7.00
Mo (%) 4.0-5.0 4.0-5.0
N (%) 0.40-0.60 0.40-0.60
Ni (%) 16.0-18.0 16.0-18.0
P (%) <=0.030 <=0.030
S (%) <=0.010 <=0.010
Si (%) <=1.00 <=1.00
Nb (%) 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 A959 S34565 ASTM A240/A240M S34565
Tensile Strength Not specified >=795 MPa
Yield Strength Not specified >=415 MPa
Elongation Not specified >=35%
Hardness Not specified <=241 HB
Condition Not specified Plate, sheet and strip; yield by 0.2 percent offset
Typical Applications
ASTM A959 S34565
Wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1)
ASTM A240/A240M S34565
Pressure vessels and general applications (plate, sheet and strip)
Key Differences
Can ASTM A959 S34565 Be Substituted With ASTM A240/A240M S34565?
ASTM A959 S34565 and ASTM A240/A240M S34565 overlap closely enough on chemistry and mechanical properties that ASTM A240/A240M S34565 is often considered as a substitute for ASTM A959 S34565 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 S34565
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ASTM A240/A240M S34565
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Frequently Asked Questions
What is the difference between ASTM A959 S34565 and ASTM A240/A240M S34565?
ASTM A959 S34565 specifies Cb which is not specified for ASTM A240/A240M S34565. ASTM A240/A240M S34565 specifies Nb which is not specified for ASTM A959 S34565.
Can ASTM A959 S34565 be substituted with ASTM A240/A240M S34565?
ASTM A959 S34565 and ASTM A240/A240M S34565 overlap closely enough on chemistry and mechanical properties that ASTM A240/A240M S34565 is often considered as a substitute for ASTM A959 S34565 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.