Close Alternative — 77.8% match
based on chemical composition and mechanical property overlap.
JIS G4304 SUS420J2 (JIS G4304:2021) and JIS G4304 SUS420J1 (JIS G4304:2021) are both steel grades.
Both fall under the Stainless Steel category.
JIS G4304 SUS420J2 is typically used for hot-rolled stainless steel plates and strips, while JIS G4304 SUS420J1 is commonly used for hot-rolled stainless steel plates and strips.
JIS G4304 SUS420J2 is defined under Japanese Industrial Standards (JIS), originating from Japan, while JIS G4304 SUS420J1 is defined under Japanese Industrial Standards (JIS), originating from Japan.
As per chemical composition, JIS G4304 SUS420J2 vs JIS G4304 SUS420J1 is a 91.7% match.
As per mechanical properties, the match is 50%.
Combined, this makes them a close alternative overall at 77.8%.
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 SUS420J2
JIS G4304 SUS420J1
Tensile Strength
>=540 MPa
>=520 MPa
Yield Strength
>=225 MPa
>=225 MPa
Elongation
>=18%
>=18%
Hardness
<=235 HB
<=223 HB
Condition
Annealed plate and strip; proof strength applies only when specified by the purchaser
Annealed plate and strip; proof strength applies only when specified by the purchaser
Typical Applications
JIS G4304 SUS420J2
Hot-rolled stainless steel plates and strips
JIS G4304 SUS420J1
Hot-rolled stainless steel plates and strips
Can JIS G4304 SUS420J2 Be Substituted With JIS G4304 SUS420J1?
JIS G4304 SUS420J2 and JIS G4304 SUS420J1 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 SUS420J2 and JIS G4304 SUS420J1?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can JIS G4304 SUS420J2 be substituted with JIS G4304 SUS420J1?
JIS G4304 SUS420J2 and JIS G4304 SUS420J1 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.