Close Alternative — 84.4% match
based on chemical composition and mechanical property overlap.
JIS G4305 SUS301 (JIS G4305:2012) and BS 970 (Part 3) 302S31 (BS 970 (Part 3):1991) are both steel grades.
Both fall under the Stainless Steel category.
JIS G4305 SUS301 is typically used for cold-rolled stainless steel plates, sheet and strip, while BS 970 (Part 3) 302S31 is commonly used for bright cold finished bars (cold drawn, turned or precision ground) for general engineering purposes, in straight lengths; austenitic stainless and heat resisting steel (table 18).
JIS G4305 SUS301 is defined under Japanese Industrial Standards (JIS), originating from Japan, while BS 970 (Part 3) 302S31 is defined under British Standards (BS), originating from United Kingdom.
As per chemical composition, JIS G4305 SUS301 vs BS 970 (Part 3) 302S31 is a 84.4% 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 84.4%.
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 SUS301
BS 970 (Part 3) 302S31
Tensile Strength
>=520 MPa
Not specified
Yield Strength
>=205 MPa
Not specified
Elongation
>=40%
Not specified
Hardness
<=207 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 G4305 SUS301
Cold-rolled stainless steel plates, sheet and strip
BS 970 (Part 3) 302S31
Bright cold finished bars (cold drawn, turned or precision ground) for general engineering purposes, in straight lengths; austenitic stainless and heat resisting steel (Table 18)
Can JIS G4305 SUS301 Be Substituted With BS 970 (Part 3) 302S31?
JIS G4305 SUS301 and BS 970 (Part 3) 302S31 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 SUS301 and BS 970 (Part 3) 302S31?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can JIS G4305 SUS301 be substituted with BS 970 (Part 3) 302S31?
JIS G4305 SUS301 and BS 970 (Part 3) 302S31 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.