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ASTM A959 S20400 vs ASTM A240/A240M S20153

Close Alternative — 74% match based on chemical composition and mechanical property overlap.

ASTM A959 S20400 (ASTM A959:2011) and ASTM A240/A240M S20153 (ASTM A240/A240M:2025) are both steel grades. Both fall under the Stainless Steel category. ASTM A959 S20400 is typically used for wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1), while ASTM A240/A240M S20153 is commonly used for pressure vessels and general applications (plate, sheet and strip). ASTM A959 S20400 is defined under ASTM International, originating from United States, while ASTM A240/A240M S20153 is defined under ASTM International, originating from United States.

As per chemical composition, ASTM A959 S20400 vs ASTM A240/A240M S20153 is a 74% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a close alternative overall at 74%.

Frequently Compared With ASTM A959 S20400:
ASTM A959 201L ASTM A959 201LN EN 10088-1 1.4401 GOST 5632 06Kh23N28 GOST 5632 08X18H10 EN 10088-1 1.4845 IS 1570 (Part 7) 12Cr12MoH ASTM A959 .- GB/T 3280 06Cr19Ni10 EN 10088-1 1.4301 EN 10088-1 1.4006 IS 1570 (Part 7) 12Cr12MoVH
Match Breakdown
CHEMISTRY MATCH
74%
MECHANICAL MATCH
No shared data
OVERALL
74%
Specifications
Property ASTM A959 S20400 ASTM A240/A240M S20153
Standard ASTM A959:2011 ASTM A240/A240M:2025
Category Stainless Steel Stainless Steel
C (%) <=0.030 <=0.03
Cr (%) 15.0-17.0 16.0-17.5
Mn (%) 7.0-9.0 6.40-7.50
N (%) 0.15-0.30 0.10-0.25
Ni (%) 1.50-3.00 4.0-5.0
P (%) <=0.045 <=0.045
S (%) <=0.030 <=0.015
Si (%) <=1.00 <=0.75
Cu (%) Not specified <=1.00
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 S20400 ASTM A240/A240M S20153
Tensile Strength Not specified >=655 MPa
Yield Strength Not specified >=310 MPa
Elongation Not specified >=45%
Hardness Not specified <=241 HB
Condition Not specified Plate, sheet and strip; yield by 0.2 percent offset
Typical Applications
ASTM A959 S20400
Wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1)
ASTM A240/A240M S20153
Pressure vessels and general applications (plate, sheet and strip)
Key Differences
Can ASTM A959 S20400 Be Substituted With ASTM A240/A240M S20153?
ASTM A959 S20400 and ASTM A240/A240M S20153 are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.
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ASTM A959 S20400
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ASTM A240/A240M S20153
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Frequently Asked Questions
What is the difference between ASTM A959 S20400 and ASTM A240/A240M S20153?
ASTM A240/A240M S20153 specifies Cu which is not specified for ASTM A959 S20400.
Can ASTM A959 S20400 be substituted with ASTM A240/A240M S20153?
ASTM A959 S20400 and ASTM A240/A240M S20153 are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.