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ASTM A240/A240M S81921 vs EN 10088-1 X2CrNiMnMoCuN24-4-3-2

Close Alternative — 72.6% match based on chemical composition and mechanical property overlap.

ASTM A240/A240M S81921 (ASTM A240/A240M:2025) and EN 10088-1 X2CrNiMnMoCuN24-4-3-2 (EN 10088-1:2014) are both steel grades. Both fall under the Stainless Steel category. ASTM A240/A240M S81921 is defined under ASTM International, originating from United States, while EN 10088-1 X2CrNiMnMoCuN24-4-3-2 is defined under European Standard (EN), originating from Europe.

As per chemical composition, ASTM A240/A240M S81921 vs EN 10088-1 X2CrNiMnMoCuN24-4-3-2 is a 72.6% 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 72.6%.

Frequently Compared With ASTM A240/A240M S81921:
GOST 5632 08X18H10 EN 10088-1 1.4006 EN 10088-1 1.4845 ASTM A959 .- GB/T 3280 06Cr19Ni10 GOST 5632 06Kh23N28 EN 10088-1 1.4301 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
Match Breakdown
CHEMISTRY MATCH
72.6%
MECHANICAL MATCH
No shared data
OVERALL
72.6%
Specifications
Property ASTM A240/A240M S81921 EN 10088-1 X2CrNiMnMoCuN24-4-3-2
Standard ASTM A240/A240M:2025 EN 10088-1:2014
Category Stainless Steel Stainless Steel
C (%) <=0.030 <=0.030
Mn (%) 2.00-4.00 2.50-4.0
P (%) <=0.040 <=0.035
S (%) <=0.030 <=0.005
Si (%) <=1.00 <=0.70
Cr (%) 19.0-22.0 23.0-25.0
Ni (%) 2.0-4.0 3.0-4.5
Mo (%) 1.00-2.00 1.00-2.00
N (%) 0.14-0.20 0.20-0.30
Cu (%) Not specified 0.10-0.80
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 S81921 EN 10088-1 X2CrNiMnMoCuN24-4-3-2
Tensile Strength >=620 MPa Not specified
Yield Strength >=450 MPa Not specified
Elongation >=25% Not specified
Hardness <=293 HB Not specified
Condition Plate, sheet and strip; yield by 0.2 percent offset Not specified
Typical Applications
ASTM A240/A240M S81921
Pressure vessels and general applications (plate, sheet and strip)
EN 10088-1 X2CrNiMnMoCuN24-4-3-2
Not documented
Key Differences
Can ASTM A240/A240M S81921 Be Substituted With EN 10088-1 X2CrNiMnMoCuN24-4-3-2?
ASTM A240/A240M S81921 and EN 10088-1 X2CrNiMnMoCuN24-4-3-2 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 S81921
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EN 10088-1 X2CrNiMnMoCuN24-4-3-2
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Frequently Asked Questions
What is the difference between ASTM A240/A240M S81921 and EN 10088-1 X2CrNiMnMoCuN24-4-3-2?
EN 10088-1 X2CrNiMnMoCuN24-4-3-2 specifies Cu which is not specified for ASTM A240/A240M S81921.
Can ASTM A240/A240M S81921 be substituted with EN 10088-1 X2CrNiMnMoCuN24-4-3-2?
ASTM A240/A240M S81921 and EN 10088-1 X2CrNiMnMoCuN24-4-3-2 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.