Minimal Match — 35% match
based on chemical composition and mechanical property overlap.
BS 970 EN56BM (BS 970:1955) and IS 1570 (Part 7) 12Cr13H (IS 1570 (Part 7):1992) are both steel grades.
Both fall under the Stainless Steel category.
BS 970 EN56BM 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 EN56BM vs IS 1570 (Part 7) 12Cr13H is a 77.9% match.
As per mechanical properties, the match is 50%.
Combined, this makes them a minimal match overall at 35%.
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 EN56BM
IS 1570 (Part 7) 12Cr13H
Tensile Strength
≥541 MPa (35 tons/sq in, converted)
470-670 MPa
Elongation
≥20%
>=20%
Hardness
152-207 HB
Not specified
Condition
Hardened and tempered P, ruling section 6 in (lowest-strength condition of the standard)
Bars, forgings, plates, A, thickness up to 160 (first row of Table 3)
Yield Strength
Not specified
>=265 MPa (0.2 % proof stress)
Typical Applications
BS 970 EN56BM
Not documented
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
BS 970 EN56BM specifies Mo, Se, Zr, Pb which are not specified for IS 1570 (Part 7) 12Cr13H.
Can BS 970 EN56BM Be Substituted With IS 1570 (Part 7) 12Cr13H?
BS 970 EN56BM 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 EN56BM and IS 1570 (Part 7) 12Cr13H?
BS 970 EN56BM specifies Mo, Se, Zr, Pb which are not specified for IS 1570 (Part 7) 12Cr13H.
Can BS 970 EN56BM be substituted with IS 1570 (Part 7) 12Cr13H?
BS 970 EN56BM 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.