Strong Match — 96.1% match
based on chemical composition and mechanical property overlap.
EN 10088-1 X7CrNiAl17-7 (EN 10088-1:2023) and ASTM A959 631 (ASTM A959:2011) are both steel grades.
Both fall under the Stainless Steel category.
EN 10088-1 X7CrNiAl17-7 is defined under European Standard (EN), originating from Europe, while ASTM A959 631 is defined under ASTM International, originating from United States.
As per chemical composition, EN 10088-1 X7CrNiAl17-7 vs ASTM A959 631 is a 96.1% match.
Mechanical property data is not available for both grades, so this factor could not be scored.
Combined, this makes them a strong match overall at 96.1%.
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 X7CrNiAl17-7
Not documented
ASTM A959 631
Wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1)
Can EN 10088-1 X7CrNiAl17-7 Be Substituted With ASTM A959 631?
EN 10088-1 X7CrNiAl17-7 and ASTM A959 631 overlap closely enough on chemistry and mechanical properties that ASTM A959 631 is often considered as a substitute for EN 10088-1 X7CrNiAl17-7 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
What is the difference between EN 10088-1 X7CrNiAl17-7 and ASTM A959 631?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can EN 10088-1 X7CrNiAl17-7 be substituted with ASTM A959 631?
EN 10088-1 X7CrNiAl17-7 and ASTM A959 631 overlap closely enough on chemistry and mechanical properties that ASTM A959 631 is often considered as a substitute for EN 10088-1 X7CrNiAl17-7 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.