BS 970 (Part 1) 325S31 vs IS 1570 (Part 7) 12Cr13H
Minimal Match — 47.2% match
based on chemical composition and mechanical property overlap.
BS 970 (Part 1) 325S31 (BS 970 (Part 1):1991) and IS 1570 (Part 7) 12Cr13H (IS 1570 (Part 7):1992) are both steel grades.
Both fall under the Stainless Steel category.
BS 970 (Part 1) 325S31 is typically used for austenitic stainless and heat resisting steel (section five), 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.
BS 970 (Part 1) 325S31 is defined under British Standards (BS), originating from United Kingdom, while IS 1570 (Part 7) 12Cr13H is defined under Bureau of Indian Standards (IS), originating from India.
As per chemical composition, BS 970 (Part 1) 325S31 vs IS 1570 (Part 7) 12Cr13H is a 70.8% match.
As per mechanical properties, the match is 0%.
Combined, this makes them a minimal match overall at 47.2%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
BS 970 (Part 1) 325S31
IS 1570 (Part 7) 12Cr13H
Condition
Softened, 1000-1100 deg C
Bars, forgings, plates, A, thickness up to 160 (first row of Table 3)
Tensile Strength
510 MPa min
470-670 MPa
Yield Strength
200 MPa min (0.2% proof)
>=265 MPa (0.2 % proof stress)
Elongation
35 % min
>=20%
Hardness
183 HB max
Not specified
Typical Applications
BS 970 (Part 1) 325S31
Austenitic stainless and heat resisting steel (section five)
IS 1570 (Part 7) 12Cr13H
Boilers, pressure vessels, steam turbines, steam and water piping and other power plant equipment working at elevated temperature
Can BS 970 (Part 1) 325S31 Be Substituted With IS 1570 (Part 7) 12Cr13H?
BS 970 (Part 1) 325S31 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 BS 970 (Part 1) 325S31 and IS 1570 (Part 7) 12Cr13H?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can BS 970 (Part 1) 325S31 be substituted with IS 1570 (Part 7) 12Cr13H?
BS 970 (Part 1) 325S31 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.