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

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

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

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