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ASTM A240/A240M S21400 vs ASTM A959 XM-28

Close Alternative — 75.6% match based on chemical composition and mechanical property overlap.

ASTM A240/A240M S21400 (ASTM A240/A240M:2025) and ASTM A959 XM-28 (ASTM A959:2011) are both steel grades. Both fall under the Stainless Steel category. ASTM A240/A240M S21400 is typically used for pressure vessels and general applications (plate, sheet and strip), while ASTM A959 XM-28 is commonly used for wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1). ASTM A240/A240M S21400 is defined under ASTM International, originating from United States, while ASTM A959 XM-28 is defined under ASTM International, originating from United States.

As per chemical composition, ASTM A240/A240M S21400 vs ASTM A959 XM-28 is a 75.6% 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 75.6%.

Frequently Compared With ASTM A240/A240M S21400:
GOST 5632 06Kh23N28 EN 10088-1 1.4401 EN 10088-1 1.4845 GB/T 3280 06Cr19Ni10 GOST 5632 08X18H10 EN 10088-1 1.4006 EN 10088-1 1.4301 IS 1570 (Part 7) 11Cr17Ni13W3TiH IS 1570 (Part 7) 12Cr12MoH IS 1570 (Part 7) 12Cr12MoVH IS 1570 (Part 7) 12Cr12Ni2Mo ASTM A959 .-
Match Breakdown
CHEMISTRY MATCH
75.6%
MECHANICAL MATCH
No shared data
OVERALL
75.6%
Specifications
Property ASTM A240/A240M S21400 ASTM A959 XM-28
Standard ASTM A240/A240M:2025 ASTM A959:2011
Category Stainless Steel Stainless Steel
C (%) <=0.12 <=0.15
Mn (%) 14.00-16.00 11.0-14.0
P (%) <=0.045 <=0.045
S (%) <=0.030 <=0.030
Si (%) 0.30-1.00 <=1.00
Cr (%) 17.0-18.5 16.5-19.0
Ni (%) <=1.00 0.50-2.50
N (%) >=0.35 0.20-0.45
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Typical Applications
ASTM A240/A240M S21400
Pressure vessels and general applications (plate, sheet and strip)
ASTM A959 XM-28
Wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1)
Can ASTM A240/A240M S21400 Be Substituted With ASTM A959 XM-28?
ASTM A240/A240M S21400 and ASTM A959 XM-28 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 S21400
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ASTM A959 XM-28
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Frequently Asked Questions
What is the difference between ASTM A240/A240M S21400 and ASTM A959 XM-28?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can ASTM A240/A240M S21400 be substituted with ASTM A959 XM-28?
ASTM A240/A240M S21400 and ASTM A959 XM-28 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.