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ASTM A240/A240M S32520 vs ASTM A959 S32520

Strong Match — 94.7% match based on chemical composition and mechanical property overlap.

ASTM A240/A240M S32520 (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 S32520 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 S32520 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 S32520 vs ASTM A959 S32520 is a 94.7% 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 94.7%.

Frequently Compared With ASTM A240/A240M S32520:
GOST 5632 08X18H10 GOST 5632 06Kh23N28 EN 10088-1 1.4006 EN 10088-1 1.4845 IS 1570 (Part 7) 12Cr12MoVH GB/T 3280 06Cr19Ni10 EN 10088-1 1.4401 IS 1570 (Part 7) 11Cr17Ni13W3TiH IS 1570 (Part 7) 12Cr12MoH IS 1570 (Part 7) 12Cr13H ASTM A959 2507 ASTM A959 .-
Match Breakdown
CHEMISTRY MATCH
94.7%
MECHANICAL MATCH
No shared data
OVERALL
94.7%
Specifications
Property ASTM A240/A240M S32520 ASTM A959 S32520
Standard ASTM A240/A240M:2025 ASTM A959:2011
Category Stainless Steel Stainless Steel
C (%) <=0.030 <=0.030
Mn (%) <=1.50 <=1.50
P (%) <=0.035 <=0.035
S (%) <=0.020 <=0.020
Si (%) <=0.80 <=0.80
Cr (%) 24.0-26.0 24.0-26.0
Ni (%) 5.5-8.0 5.5-8.0
Mo (%) 3.0-4.0 3.0-5.0
N (%) 0.20-0.35 0.20-0.35
Cu (%) 0.50-2.00 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 S32520 ASTM A959 S32520
Tensile Strength >=770 MPa Not specified
Yield Strength >=550 MPa Not specified
Elongation >=25% Not specified
Hardness <=310 HB Not specified
Condition Plate, sheet and strip; yield by 0.2 percent offset Not specified
Typical Applications
ASTM A240/A240M S32520
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)
Can ASTM A240/A240M S32520 Be Substituted With ASTM A959 S32520?
ASTM A240/A240M S32520 and ASTM A959 S32520 overlap closely enough on chemistry and mechanical properties that ASTM A959 S32520 is often considered as a substitute for ASTM A240/A240M S32520 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 S32520
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ASTM A959 S32520
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Frequently Asked Questions
What is the difference between ASTM A240/A240M S32520 and ASTM A959 S32520?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can ASTM A240/A240M S32520 be substituted with ASTM A959 S32520?
ASTM A240/A240M S32520 and ASTM A959 S32520 overlap closely enough on chemistry and mechanical properties that ASTM A959 S32520 is often considered as a substitute for ASTM A240/A240M S32520 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.