Related Material — 59.3% match
based on chemical composition and mechanical property overlap.
JIS G4304 SUS631 (JIS G4304:2021) and IS 1570 (Part 7) 12Cr13H (IS 1570 (Part 7):1992) are both steel grades.
Both fall under the Stainless Steel category.
JIS G4304 SUS631 is typically used for hot-rolled stainless steel plates and strips, while IS 1570 (Part 7) 12Cr13H is commonly used for boilers, pressure vessels, steam turbines, steam and water piping and other power plant equipment working at elevated temperature.
JIS G4304 SUS631 is defined under Japanese Industrial Standards (JIS), originating from Japan, while IS 1570 (Part 7) 12Cr13H is defined under Bureau of Indian Standards (IS), originating from India.
As per chemical composition, JIS G4304 SUS631 vs IS 1570 (Part 7) 12Cr13H is a 72.2% match.
As per mechanical properties, the match is 33.3%.
Combined, this makes them a related material overall at 59.3%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
JIS G4304 SUS631
IS 1570 (Part 7) 12Cr13H
Tensile Strength
<=1030 MPa
470-670 MPa
Yield Strength
<=380 MPa
>=265 MPa (0.2 % proof stress)
Elongation
>=20%
>=20%
Hardness
<=192 HB
Not specified
Condition
Solution heat treated plate and strip; proof strength applies only when specified by the purchaser
Bars, forgings, plates, A, thickness up to 160 (first row of Table 3)
Typical Applications
JIS G4304 SUS631
Hot-rolled stainless steel plates and strips
IS 1570 (Part 7) 12Cr13H
Boilers, pressure vessels, steam turbines, steam and water piping and other power plant equipment working at elevated temperature
Key Differences
JIS G4304 SUS631 specifies Al which is not specified for IS 1570 (Part 7) 12Cr13H.
Can JIS G4304 SUS631 Be Substituted With IS 1570 (Part 7) 12Cr13H?
JIS G4304 SUS631 and IS 1570 (Part 7) 12Cr13H share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.
What is the difference between JIS G4304 SUS631 and IS 1570 (Part 7) 12Cr13H?
JIS G4304 SUS631 specifies Al which is not specified for IS 1570 (Part 7) 12Cr13H.
Can JIS G4304 SUS631 be substituted with IS 1570 (Part 7) 12Cr13H?
JIS G4304 SUS631 and IS 1570 (Part 7) 12Cr13H share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.