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ASTM A240/A240M S31740 vs EN 10088-1 X2CrNiMo18-15-4

Close Alternative — 73.7% match based on chemical composition and mechanical property overlap.

ASTM A240/A240M S31740 (ASTM A240/A240M:2025) and EN 10088-1 X2CrNiMo18-15-4 (EN 10088-1:2023) are both steel grades. Both fall under the Stainless Steel category. ASTM A240/A240M S31740 is defined under ASTM International, originating from United States, while EN 10088-1 X2CrNiMo18-15-4 is defined under European Standard (EN), originating from Europe.

As per chemical composition, ASTM A240/A240M S31740 vs EN 10088-1 X2CrNiMo18-15-4 is a 73.7% 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 73.7%.

Frequently Compared With ASTM A240/A240M S31740:
GOST 5632 06Kh23N28 GB/T 3280 06Cr19Ni10 GOST 5632 08X18H10 EN 10088-1 1.4006 IS 1570 (Part 7) 11Cr17Ni13W3TiH ASTM A959 .- EN 10088-1 1.4301 EN 10088-1 1.4401 EN 10088-1 1.4845 IS 1570 (Part 7) 12Cr12MoH IS 1570 (Part 7) 12Cr12MoVH IS 1570 (Part 7) 12Cr12Ni2Mo
Match Breakdown
CHEMISTRY MATCH
73.7%
MECHANICAL MATCH
No shared data
OVERALL
73.7%
Specifications
Property ASTM A240/A240M S31740 EN 10088-1 X2CrNiMo18-15-4
Standard ASTM A240/A240M:2025 EN 10088-1:2023
Category Stainless Steel Stainless Steel
C (%) 0.005-0.020 <=0.030
Mn (%) <=2.00 <=2.00
P (%) <=0.045 <=0.045
S (%) <=0.030 <=0.015
Si (%) <=1.00 <=1.00
Cr (%) 17.0-19.0 17.5-19.5
Ni (%) 11.0-15.0 13.0-16.0
Mo (%) 3.0-4.5 3.00-4.0
N (%) 0.06-0.15 <=0.10
Nb (%) 0.20-0.50 Not specified
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 S31740 EN 10088-1 X2CrNiMo18-15-4
Tensile Strength >=515 MPa Not specified
Yield Strength >=205 MPa Not specified
Elongation >=35% Not specified
Hardness <=217 HB Not specified
Condition Plate, sheet and strip; yield by 0.2 percent offset Not specified
Typical Applications
ASTM A240/A240M S31740
Pressure vessels and general applications (plate, sheet and strip)
EN 10088-1 X2CrNiMo18-15-4
Not documented
Key Differences
Can ASTM A240/A240M S31740 Be Substituted With EN 10088-1 X2CrNiMo18-15-4?
ASTM A240/A240M S31740 and EN 10088-1 X2CrNiMo18-15-4 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.
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ASTM A240/A240M S31740
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EN 10088-1 X2CrNiMo18-15-4
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Frequently Asked Questions
What is the difference between ASTM A240/A240M S31740 and EN 10088-1 X2CrNiMo18-15-4?
ASTM A240/A240M S31740 specifies Nb which is not specified for EN 10088-1 X2CrNiMo18-15-4.
Can ASTM A240/A240M S31740 be substituted with EN 10088-1 X2CrNiMo18-15-4?
ASTM A240/A240M S31740 and EN 10088-1 X2CrNiMo18-15-4 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.