IS 6603 X04Cr25Ni20 vs IS 1570 (Part 7) 12Cr12MoVH
Minimal Match — 35% match
based on chemical composition and mechanical property overlap.
IS 6603 X04Cr25Ni20 (IS 6603:2024) and IS 1570 (Part 7) 12Cr12MoVH (IS 1570 (Part 7):1992) are both steel grades.
Both fall under the Stainless Steel category.
IS 6603 X04Cr25Ni20 is typically used for general purposes, semi-finished products, bars, wire rods and bright bars, while IS 1570 (Part 7) 12Cr12MoVH is commonly used for boilers, pressure vessels, steam turbines, steam and water piping and other power plant equipment working at elevated temperature.
IS 6603 X04Cr25Ni20 is defined under Bureau of Indian Standards (IS), originating from India, while IS 1570 (Part 7) 12Cr12MoVH is defined under Bureau of Indian Standards (IS), originating from India.
As per chemical composition, IS 6603 X04Cr25Ni20 vs IS 1570 (Part 7) 12Cr12MoVH is a 53.2% 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
IS 6603 X04Cr25Ni20
IS 1570 (Part 7) 12Cr12MoVH
Tensile Strength
500-700 MPa
770-930 MPa
Yield Strength
>=210 MPa
>=585 MPa (0.2 % proof stress)
Elongation
>=35%
>=15%
Condition
Solution annealed, conditions 1C, 1E, 1D, 1X, 1G and 2D, thickness or diameter up to 160 mm; Yield Strength is Rp0.2, Elongation is A (longitudinal)
Bars, forgings, Q+T, thickness up to 150 (first row of Table 3)
Typical Applications
IS 6603 X04Cr25Ni20
General purposes, semi-finished products, bars, wire rods and bright bars
IS 1570 (Part 7) 12Cr12MoVH
Boilers, pressure vessels, steam turbines, steam and water piping and other power plant equipment working at elevated temperature
Key Differences
IS 1570 (Part 7) 12Cr12MoVH specifies Mo, V which are not specified for IS 6603 X04Cr25Ni20.
Can IS 6603 X04Cr25Ni20 Be Substituted With IS 1570 (Part 7) 12Cr12MoVH?
IS 6603 X04Cr25Ni20 and IS 1570 (Part 7) 12Cr12MoVH 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 IS 6603 X04Cr25Ni20 and IS 1570 (Part 7) 12Cr12MoVH?
IS 1570 (Part 7) 12Cr12MoVH specifies Mo, V which are not specified for IS 6603 X04Cr25Ni20.
Can IS 6603 X04Cr25Ni20 be substituted with IS 1570 (Part 7) 12Cr12MoVH?
IS 6603 X04Cr25Ni20 and IS 1570 (Part 7) 12Cr12MoVH 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.