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ASTM A240/A240M S31254 vs EN 10088-2 X1CrNiMoCuN20-18-7

Close Alternative — 74.5% match based on chemical composition and mechanical property overlap.

ASTM A240/A240M S31254 (ASTM A240/A240M:2025) and EN 10088-2 X1CrNiMoCuN20-18-7 (EN 10088-2:2014) are both steel grades. Both fall under the Stainless Steel category. ASTM A240/A240M S31254 is typically used for pressure vessels and general applications (plate, sheet and strip), while EN 10088-2 X1CrNiMoCuN20-18-7 is commonly used for general purposes, hot or cold rolled sheet/plate and strip. ASTM A240/A240M S31254 is defined under ASTM International, originating from United States, while EN 10088-2 X1CrNiMoCuN20-18-7 is defined under European Standard (EN), originating from Europe.

As per chemical composition, ASTM A240/A240M S31254 vs EN 10088-2 X1CrNiMoCuN20-18-7 is a 95.1% match. As per mechanical properties, the match is 33.3%. Combined, this makes them a close alternative overall at 74.5%.

Frequently Compared With ASTM A240/A240M S31254:
EN 10088-1 1.4845 IS 1570 (Part 7) 12Cr12MoH GOST 5632 06Kh23N28 GOST 5632 08X18H10 ASTM A959 .- EN 10088-1 1.4401 IS 1570 (Part 7) 12Cr12MoVH GB/T 3280 06Cr19Ni10 EN 10088-1 1.4006 EN 10088-1 1.4301 IS 1570 (Part 7) 11Cr17Ni13W3TiH IS 1570 (Part 7) 12Cr12Ni2Mo
Match Breakdown
CHEMISTRY MATCH
95.1%
MECHANICAL MATCH
33.3%
OVERALL
74.5%
Specifications
Property ASTM A240/A240M S31254 EN 10088-2 X1CrNiMoCuN20-18-7
Standard ASTM A240/A240M:2025 EN 10088-2:2014
Category Stainless Steel Stainless Steel
C (%) <=0.020 <=0.020
Mn (%) <=1.00 <=1.00
P (%) <=0.030 <=0.030
S (%) <=0.010 <=0.010
Si (%) <=0.80 <=0.70
Cr (%) 19.5-20.5 19.5-20.5
Ni (%) 17.5-18.5 17.5-18.5
Mo (%) 6.0-6.5 6.0-7.0
N (%) 0.18-0.25 0.18-0.25
Cu (%) 0.50-1.00 0.50-1.00
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property ASTM A240/A240M S31254 EN 10088-2 X1CrNiMoCuN20-18-7
Tensile Strength >=690 MPa 650-850 MPa
Yield Strength >=310 MPa >=320 MPa
Elongation >=35% >=35%
Hardness <=223 HB Not specified
Condition Sheet and strip (first condition printed); yield by 0.2 percent offset Solution annealed (+AT), cold rolled strip, up to 8 mm thick; Yield Strength is Rp0.2 (transverse), Elongation is A80 for under 3 mm thick
Typical Applications
ASTM A240/A240M S31254
Pressure vessels and general applications (plate, sheet and strip)
EN 10088-2 X1CrNiMoCuN20-18-7
General purposes, hot or cold rolled sheet/plate and strip
Can ASTM A240/A240M S31254 Be Substituted With EN 10088-2 X1CrNiMoCuN20-18-7?
ASTM A240/A240M S31254 and EN 10088-2 X1CrNiMoCuN20-18-7 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 S31254
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EN 10088-2 X1CrNiMoCuN20-18-7
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Frequently Asked Questions
What is the difference between ASTM A240/A240M S31254 and EN 10088-2 X1CrNiMoCuN20-18-7?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can ASTM A240/A240M S31254 be substituted with EN 10088-2 X1CrNiMoCuN20-18-7?
ASTM A240/A240M S31254 and EN 10088-2 X1CrNiMoCuN20-18-7 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.