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