Close Alternative — 70.8% match
based on chemical composition and mechanical property overlap.
EN 10088-1 X90CrMoV18 (EN 10088-1:2014) and ASTM A959 440A (ASTM A959:2011) are both steel grades.
Both fall under the Stainless Steel category.
EN 10088-1 X90CrMoV18 is defined under European Standard (EN), originating from Europe, while ASTM A959 440A is defined under ASTM International, originating from United States.
As per chemical composition, EN 10088-1 X90CrMoV18 vs ASTM A959 440A is a 70.8% 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 70.8%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Typical Applications
EN 10088-1 X90CrMoV18
Not documented
ASTM A959 440A
Wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1)
Key Differences
EN 10088-1 X90CrMoV18 specifies V which is not specified for ASTM A959 440A.
Can EN 10088-1 X90CrMoV18 Be Substituted With ASTM A959 440A?
EN 10088-1 X90CrMoV18 and ASTM A959 440A 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.
What is the difference between EN 10088-1 X90CrMoV18 and ASTM A959 440A?
EN 10088-1 X90CrMoV18 specifies V which is not specified for ASTM A959 440A.
Can EN 10088-1 X90CrMoV18 be substituted with ASTM A959 440A?
EN 10088-1 X90CrMoV18 and ASTM A959 440A 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.