Close Alternative — 77.2% match
based on chemical composition and mechanical property overlap.
JIS G4304 SUS304J2 (JIS G4304:2021) and ASTM A959 XM-1 (ASTM A959:2011) are both steel grades.
Both fall under the Stainless Steel category.
JIS G4304 SUS304J2 is typically used for hot-rolled stainless steel plates and strips, while ASTM A959 XM-1 is commonly used for wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1).
JIS G4304 SUS304J2 is defined under Japanese Industrial Standards (JIS), originating from Japan, while ASTM A959 XM-1 is defined under ASTM International, originating from United States.
As per chemical composition, JIS G4304 SUS304J2 vs ASTM A959 XM-1 is a 77.2% 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 77.2%.
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 SUS304J2
ASTM A959 XM-1
Tensile Strength
>=450 MPa
Not specified
Yield Strength
>=155 MPa
Not specified
Elongation
>=40%
Not specified
Hardness
<=187 HB
Not specified
Condition
Solution heat treated plate and strip; 0.2 percent proof strength applies only when specified by the purchaser
Not specified
Typical Applications
JIS G4304 SUS304J2
Hot-rolled stainless steel plates and strips
ASTM A959 XM-1
Wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1)
Can JIS G4304 SUS304J2 Be Substituted With ASTM A959 XM-1?
JIS G4304 SUS304J2 and ASTM A959 XM-1 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 SUS304J2 and ASTM A959 XM-1?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can JIS G4304 SUS304J2 be substituted with ASTM A959 XM-1?
JIS G4304 SUS304J2 and ASTM A959 XM-1 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.