Close Alternative — 82.3% match
based on chemical composition and mechanical property overlap.
ASTM A959 439 (ASTM A959:2011) and JIS G4305 SUS430J1L (JIS G4305:2012) are both steel grades.
Both fall under the Stainless Steel category.
ASTM A959 439 is typically used for wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1), while JIS G4305 SUS430J1L is commonly used for cold-rolled stainless steel plates, sheet and strip.
ASTM A959 439 is defined under ASTM International, originating from United States, while JIS G4305 SUS430J1L is defined under Japanese Industrial Standards (JIS), originating from Japan.
As per chemical composition, ASTM A959 439 vs JIS G4305 SUS430J1L is a 82.3% 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 82.3%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
ASTM A959 439
JIS G4305 SUS430J1L
Tensile Strength
Not specified
>=390 MPa
Yield Strength
Not specified
>=205 MPa
Elongation
Not specified
>=22%
Hardness
Not specified
<=192 HB
Condition
Not specified
Annealed plate and strip; proof strength applies only when specified by the purchaser
Typical Applications
ASTM A959 439
Wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1)
JIS G4305 SUS430J1L
Cold-rolled stainless steel plates, sheet and strip
Key Differences
ASTM A959 439 specifies Al which is not specified for JIS G4305 SUS430J1L.
JIS G4305 SUS430J1L specifies Cu, Ti which are not specified for ASTM A959 439.
Can ASTM A959 439 Be Substituted With JIS G4305 SUS430J1L?
ASTM A959 439 and JIS G4305 SUS430J1L 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 ASTM A959 439 and JIS G4305 SUS430J1L?
ASTM A959 439 specifies Al which is not specified for JIS G4305 SUS430J1L. JIS G4305 SUS430J1L specifies Cu, Ti which are not specified for ASTM A959 439.
Can ASTM A959 439 be substituted with JIS G4305 SUS430J1L?
ASTM A959 439 and JIS G4305 SUS430J1L 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.