Close Alternative — 83.3% match
based on chemical composition and mechanical property overlap.
JIS G4305 SUS301L (JIS G4305:2012) and ASTM A240/A240M S30103 (ASTM A240/A240M:2025) are both steel grades.
Both fall under the Stainless Steel category.
JIS G4305 SUS301L is typically used for cold-rolled stainless steel plates, sheet and strip, while ASTM A240/A240M S30103 is commonly used for pressure vessels and general applications (plate, sheet and strip).
JIS G4305 SUS301L is defined under Japanese Industrial Standards (JIS), originating from Japan, while ASTM A240/A240M S30103 is defined under ASTM International, originating from United States.
As per chemical composition, JIS G4305 SUS301L vs ASTM A240/A240M S30103 is a 100% match.
As per mechanical properties, the match is 50%.
Combined, this makes them a close alternative overall at 83.3%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
JIS G4305 SUS301L
ASTM A240/A240M S30103
Tensile Strength
>=550 MPa
>=550 MPa
Yield Strength
>=215 MPa
>=220 MPa
Elongation
>=45%
>=45%
Hardness
<=207 HB
<=241 HB
Condition
Solution heat treated plate and strip; 0.2 percent proof strength applies only when specified by the purchaser
Plate, sheet and strip; yield by 0.2 percent offset
Typical Applications
JIS G4305 SUS301L
Cold-rolled stainless steel plates, sheet and strip
ASTM A240/A240M S30103
Pressure vessels and general applications (plate, sheet and strip)
Can JIS G4305 SUS301L Be Substituted With ASTM A240/A240M S30103?
JIS G4305 SUS301L and ASTM A240/A240M S30103 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 G4305 SUS301L and ASTM A240/A240M S30103?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can JIS G4305 SUS301L be substituted with ASTM A240/A240M S30103?
JIS G4305 SUS301L and ASTM A240/A240M S30103 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.