Minimal Match — 35% match
based on chemical composition and mechanical property overlap.
BS 970 EN18 (BS 970:1955) and IS 1570 (Part 7) 10Cr36Mo10H (IS 1570 (Part 7):1992) are both steel grades.
Both fall under the Alloy Steel category.
BS 970 EN18 is typically used for gears, shafts, high tensile fasteners, while IS 1570 (Part 7) 10Cr36Mo10H is commonly used for boilers, pressure vessels, steam turbines, steam and water piping and other power plant equipment working at elevated temperature.
BS 970 EN18 is defined under British Standards (BS), originating from United Kingdom, while IS 1570 (Part 7) 10Cr36Mo10H is defined under Bureau of Indian Standards (IS), originating from India.
As per chemical composition, BS 970 EN18 vs IS 1570 (Part 7) 10Cr36Mo10H is a 61.8% match.
As per mechanical properties, the match is 0%.
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 EN18
IS 1570 (Part 7) 10Cr36Mo10H
Tensile Strength
≥695 MPa (45 tons/sq in, converted)
410-560 MPa
Yield Strength
≥525 MPa (34 tons/sq in, converted)
>=135 MPa (0.2 % proof stress)
Elongation
≥22%
>=20%
Hardness
201-255 HB
Not specified
Condition
Hardened and tempered R, ruling section 4 in (lowest-strength condition of the standard)
Pipes, A, thickness - (first row of Table 3)
Typical Applications
BS 970 EN18
Gears, shafts, high tensile fasteners
IS 1570 (Part 7) 10Cr36Mo10H
Boilers, pressure vessels, steam turbines, steam and water piping and other power plant equipment working at elevated temperature
Key Differences
IS 1570 (Part 7) 10Cr36Mo10H specifies Mo, Al (metallic) which are not specified for BS 970 EN18.
Can BS 970 EN18 Be Substituted With IS 1570 (Part 7) 10Cr36Mo10H?
BS 970 EN18 and IS 1570 (Part 7) 10Cr36Mo10H 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 EN18 and IS 1570 (Part 7) 10Cr36Mo10H?
IS 1570 (Part 7) 10Cr36Mo10H specifies Mo, Al (metallic) which are not specified for BS 970 EN18.
Can BS 970 EN18 be substituted with IS 1570 (Part 7) 10Cr36Mo10H?
BS 970 EN18 and IS 1570 (Part 7) 10Cr36Mo10H 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.