Close Alternative — 83.9% match
based on chemical composition and mechanical property overlap.
ASTM A959 440A (ASTM A959:2011) and EN 10088-1 X70CrMo15 (EN 10088-1:2023) are both steel grades.
Both fall under the Stainless Steel category.
ASTM A959 440A is defined under ASTM International, originating from United States, while EN 10088-1 X70CrMo15 is defined under European Standard (EN), originating from Europe.
As per chemical composition, ASTM A959 440A vs EN 10088-1 X70CrMo15 is a 83.9% 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 83.9%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Typical Applications
ASTM A959 440A
Wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1)
EN 10088-1 X70CrMo15
Not documented
Can ASTM A959 440A Be Substituted With EN 10088-1 X70CrMo15?
ASTM A959 440A and EN 10088-1 X70CrMo15 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 ASTM A959 440A and EN 10088-1 X70CrMo15?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can ASTM A959 440A be substituted with EN 10088-1 X70CrMo15?
ASTM A959 440A and EN 10088-1 X70CrMo15 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.