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ASTM A240/A240M S44635 vs ASTM A959 S32520

Close Alternative — 72.2% match based on chemical composition and mechanical property overlap.

ASTM A240/A240M S44635 (ASTM A240/A240M:2025) and ASTM A959 S32520 (ASTM A959:2011) are both steel grades. Both fall under the Stainless Steel category. ASTM A240/A240M S44635 is typically used for pressure vessels and general applications (plate, sheet and strip), while ASTM A959 S32520 is commonly used for wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1). ASTM A240/A240M S44635 is defined under ASTM International, originating from United States, while ASTM A959 S32520 is defined under ASTM International, originating from United States.

As per chemical composition, ASTM A240/A240M S44635 vs ASTM A959 S32520 is a 72.2% 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 72.2%.

Frequently Compared With ASTM A240/A240M S44635:
EN 10088-1 1.4845 ASTM A959 25-4-4 EN 10088-1 1.4301 EN 10088-1 1.4401 ASTM A959 26-3-3 GOST 5632 08X18H10 EN 10088-1 1.4006 IS 1570 (Part 7) 12Cr12MoH IS 1570 (Part 7) 12Cr12MoVH ASTM A959 .- GB/T 3280 06Cr19Ni10 GOST 5632 06Kh23N28
Match Breakdown
CHEMISTRY MATCH
72.2%
MECHANICAL MATCH
No shared data
OVERALL
72.2%
Specifications
Property ASTM A240/A240M S44635 ASTM A959 S32520
Standard ASTM A240/A240M:2025 ASTM A959:2011
Category Stainless Steel Stainless Steel
C (%) <=0.025 <=0.030
Mn (%) <=1.00 <=1.50
P (%) <=0.040 <=0.035
S (%) <=0.030 <=0.020
Si (%) <=0.75 <=0.80
Cr (%) 24.5-26.0 24.0-26.0
Ni (%) 3.5-4.5 5.5-8.0
Mo (%) 3.5-4.5 3.0-5.0
N (%) <=0.035 0.20-0.35
Cu (%) Not specified 0.50-3.00
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property ASTM A240/A240M S44635 ASTM A959 S32520
Tensile Strength >=620 MPa Not specified
Yield Strength >=515 MPa Not specified
Elongation >=20% Not specified
Hardness <=269 HB Not specified
Condition Plate, sheet and strip; yield by 0.2 percent offset Not specified
Typical Applications
ASTM A240/A240M S44635
Pressure vessels and general applications (plate, sheet and strip)
ASTM A959 S32520
Wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1)
Key Differences
Can ASTM A240/A240M S44635 Be Substituted With ASTM A959 S32520?
ASTM A240/A240M S44635 and ASTM A959 S32520 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.
On M-EX Right Now
ASTM A240/A240M S44635
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ASTM A959 S32520
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Frequently Asked Questions
What is the difference between ASTM A240/A240M S44635 and ASTM A959 S32520?
ASTM A959 S32520 specifies Cu which is not specified for ASTM A240/A240M S44635.
Can ASTM A240/A240M S44635 be substituted with ASTM A959 S32520?
ASTM A240/A240M S44635 and ASTM A959 S32520 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.