Minimal Match — 33.5% match
based on chemical composition and mechanical property overlap.
BS 970 EN58F (BS 970:1955) and IS 1570 (Part 7) 12Cr12Ni2Mo (IS 1570 (Part 7):1992) are both steel grades.
Both fall under the Stainless Steel category.
BS 970 EN58F is defined under British Standards (BS), originating from United Kingdom, while IS 1570 (Part 7) 12Cr12Ni2Mo is defined under Bureau of Indian Standards (IS), originating from India.
As per chemical composition, BS 970 EN58F vs IS 1570 (Part 7) 12Cr12Ni2Mo is a 50.2% match.
As per mechanical properties, the match is 0%.
Combined, this makes them a minimal match overall at 33.5%.
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 EN58F
IS 1570 (Part 7) 12Cr12Ni2Mo
Tensile Strength
≥541 MPa (35 tons/sq in, converted)
930-1130 MPa
Yield Strength
≥185 MPa (12 tons/sq in, converted)
>=785 MPa (0.2 % proof stress)
Elongation
≥30%
>=14%
Condition
, ruling section 6 in (lowest-strength condition of the standard)
Bars, forgings, Q+T, thickness up to 150 (first row of Table 3)
Typical Applications
BS 970 EN58F
Not documented
IS 1570 (Part 7) 12Cr12Ni2Mo
Boilers, pressure vessels, steam turbines, steam and water piping and other power plant equipment working at elevated temperature
Key Differences
IS 1570 (Part 7) 12Cr12Ni2Mo specifies Mo, V, N which are not specified for BS 970 EN58F.
Can BS 970 EN58F Be Substituted With IS 1570 (Part 7) 12Cr12Ni2Mo?
BS 970 EN58F and IS 1570 (Part 7) 12Cr12Ni2Mo 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 EN58F and IS 1570 (Part 7) 12Cr12Ni2Mo?
IS 1570 (Part 7) 12Cr12Ni2Mo specifies Mo, V, N which are not specified for BS 970 EN58F.
Can BS 970 EN58F be substituted with IS 1570 (Part 7) 12Cr12Ni2Mo?
BS 970 EN58F and IS 1570 (Part 7) 12Cr12Ni2Mo 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.