BS 970 (Part 3) 316S33 vs IS 1570 (Part 7) 12Cr12MoH
Related Material — 59.9% match
based on chemical composition and mechanical property overlap.
BS 970 (Part 3) 316S33 (BS 970 (Part 3):1991) and IS 1570 (Part 7) 12Cr12MoH (IS 1570 (Part 7):1992) are both steel grades.
Both fall under the Stainless Steel category.
BS 970 (Part 3) 316S33 is typically used for bright cold finished bars (cold drawn, turned or precision ground) for general engineering purposes, in straight lengths; austenitic stainless and heat resisting steel (table 18), while IS 1570 (Part 7) 12Cr12MoH 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 3) 316S33 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 (Part 3) 316S33 vs IS 1570 (Part 7) 12Cr12MoH is a 59.9% match.
Mechanical property data is not available for both grades, so this factor could not be scored.
Combined, this makes them a related material overall at 59.9%.
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 (Part 3) 316S33
IS 1570 (Part 7) 12Cr12MoH
Tensile Strength
Not specified
680-880 MPa
Yield Strength
Not specified
>=490 MPa (0.2 % proof stress)
Elongation
Not specified
>=20%
Condition
Not specified
Bars, forgings, Q+T, thickness up to 75 (first row of Table 3)
Typical Applications
BS 970 (Part 3) 316S33
Bright cold finished bars (cold drawn, turned or precision ground) for general engineering purposes, in straight lengths; austenitic stainless and heat resisting steel (Table 18)
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 (Part 3) 316S33 Be Substituted With IS 1570 (Part 7) 12Cr12MoH?
BS 970 (Part 3) 316S33 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 (Part 3) 316S33 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 (Part 3) 316S33 be substituted with IS 1570 (Part 7) 12Cr12MoH?
BS 970 (Part 3) 316S33 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.