Minimal Match — 38.9% match
based on chemical composition and mechanical property overlap.
BS 970 EN58H (BS 970:1955) and IS 1570 (Part 7) 12Cr12MoH (IS 1570 (Part 7):1992) are both steel grades.
Both fall under the Stainless Steel category.
BS 970 EN58H is defined under British Standards (BS), originating from United Kingdom, while IS 1570 (Part 7) 12Cr12MoH is defined under Bureau of Indian Standards (IS), originating from India.
As per chemical composition, BS 970 EN58H vs IS 1570 (Part 7) 12Cr12MoH is a 58.4% match.
As per mechanical properties, the match is 0%.
Combined, this makes them a minimal match overall at 38.9%.
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 EN58H
IS 1570 (Part 7) 12Cr12MoH
Tensile Strength
≥541 MPa (35 tons/sq in, converted)
680-880 MPa
Yield Strength
≥185 MPa (12 tons/sq in, converted)
>=490 MPa (0.2 % proof stress)
Elongation
≥30%
>=20%
Condition
, ruling section 6 in (lowest-strength condition of the standard)
Bars, forgings, Q+T, thickness up to 75 (first row of Table 3)
Typical Applications
BS 970 EN58H
Not documented
IS 1570 (Part 7) 12Cr12MoH
Boilers, pressure vessels, steam turbines, steam and water piping and other power plant equipment working at elevated temperature
Can BS 970 EN58H Be Substituted With IS 1570 (Part 7) 12Cr12MoH?
BS 970 EN58H and IS 1570 (Part 7) 12Cr12MoH 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 EN58H and IS 1570 (Part 7) 12Cr12MoH?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can BS 970 EN58H be substituted with IS 1570 (Part 7) 12Cr12MoH?
BS 970 EN58H and IS 1570 (Part 7) 12Cr12MoH 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.