Close Alternative — 81% match
based on chemical composition and mechanical property overlap.
EN 10088-2 X7CrNiAl17-7 (EN 10088-2:2014) and JIS G4304 SUS631 (JIS G4304:2021) are both steel grades.
Both fall under the Stainless Steel category.
EN 10088-2 X7CrNiAl17-7 is typically used for general purposes, hot or cold rolled sheet/plate and strip, while JIS G4304 SUS631 is commonly used for hot-rolled stainless steel plates and strips.
EN 10088-2 X7CrNiAl17-7 is defined under European Standard (EN), originating from Europe, while JIS G4304 SUS631 is defined under Japanese Industrial Standards (JIS), originating from Japan.
As per chemical composition, EN 10088-2 X7CrNiAl17-7 vs JIS G4304 SUS631 is a 96.5% match.
As per mechanical properties, the match is 50%.
Combined, this makes them a close alternative overall at 81%.
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 X7CrNiAl17-7
JIS G4304 SUS631
Tensile Strength
<=1030 MPa
<=1030 MPa
Elongation
>=19%
>=20%
Condition
Solution annealed (+AT, delivery condition), cold rolled strip, up to 8 mm thick
Solution heat treated plate and strip; proof strength applies only when specified by the purchaser
Yield Strength
Not specified
<=380 MPa
Hardness
Not specified
<=192 HB
Typical Applications
EN 10088-2 X7CrNiAl17-7
General purposes, hot or cold rolled sheet/plate and strip
JIS G4304 SUS631
Hot-rolled stainless steel plates and strips
Can EN 10088-2 X7CrNiAl17-7 Be Substituted With JIS G4304 SUS631?
EN 10088-2 X7CrNiAl17-7 and JIS G4304 SUS631 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 10088-2 X7CrNiAl17-7 and JIS G4304 SUS631?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can EN 10088-2 X7CrNiAl17-7 be substituted with JIS G4304 SUS631?
EN 10088-2 X7CrNiAl17-7 and JIS G4304 SUS631 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.