Close Alternative — 70.1% match
based on chemical composition and mechanical property overlap.
JIS G4304 SUS434 (JIS G4304:2021) and ASTM A959 S42010 (ASTM A959:2011) are both steel grades.
Both fall under the Stainless Steel category.
JIS G4304 SUS434 is typically used for hot-rolled stainless steel plates and strips, while ASTM A959 S42010 is commonly used for wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1).
JIS G4304 SUS434 is defined under Japanese Industrial Standards (JIS), originating from Japan, while ASTM A959 S42010 is defined under ASTM International, originating from United States.
As per chemical composition, JIS G4304 SUS434 vs ASTM A959 S42010 is a 70.1% 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 70.1%.
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 SUS434
ASTM A959 S42010
Tensile Strength
>=450 MPa
Not specified
Yield Strength
>=205 MPa
Not specified
Elongation
>=22%
Not specified
Hardness
<=183 HB
Not specified
Condition
Annealed plate and strip; proof strength applies only when specified by the purchaser
Not specified
Typical Applications
JIS G4304 SUS434
Hot-rolled stainless steel plates and strips
ASTM A959 S42010
Wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1)
Can JIS G4304 SUS434 Be Substituted With ASTM A959 S42010?
JIS G4304 SUS434 and ASTM A959 S42010 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 SUS434 and ASTM A959 S42010?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can JIS G4304 SUS434 be substituted with ASTM A959 S42010?
JIS G4304 SUS434 and ASTM A959 S42010 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.