IS 1570 (Part 7) 21CrMoVH vs IS 11169 (Part 1) 10Ni5Cr4
Minimal Match — 34.6% match
based on chemical composition and mechanical property overlap.
IS 1570 (Part 7) 21CrMoVH (IS 1570 (Part 7):1992) and IS 11169 (Part 1) 10Ni5Cr4 (IS 11169 (Part 1):2022) are both steel grades.
Both fall under the Alloy Steel category.
IS 1570 (Part 7) 21CrMoVH is typically used for boilers, pressure vessels, steam turbines, steam and water piping and other power plant equipment working at elevated temperature, while IS 11169 (Part 1) 10Ni5Cr4 is commonly used for cold heading and cold extrusion of parts that are case hardened; the standard covers bars, wire rods and wires of 2 to 100 mm (clause 1.1, annex b).
IS 1570 (Part 7) 21CrMoVH is defined under Bureau of Indian Standards (IS), originating from India, while IS 11169 (Part 1) 10Ni5Cr4 is defined under Bureau of Indian Standards (IS), originating from India.
As per chemical composition, IS 1570 (Part 7) 21CrMoVH vs IS 11169 (Part 1) 10Ni5Cr4 is a 51.9% match.
As per mechanical properties, the match is 0%.
Combined, this makes them a minimal match overall at 34.6%.
Frequently Compared With IS 1570 (Part 7) 21CrMoVH:
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
IS 1570 (Part 7) 21CrMoVH
IS 11169 (Part 1) 10Ni5Cr4
Tensile Strength
700-850 MPa
Not specified
Yield Strength
>=550 MPa (0.2 % proof stress)
Not specified
Elongation
>=16%
Not specified
Condition
Bars, forgings, Q+T, thickness up to 250 (first row of Table 3)
Not specified
Hardness, ferrite-pearlite (+FP)
Not specified
137-187 HB
Tensile Strength, annealed (+AC)
Not specified
<=520 MPa (over 5 to 40 mm)
Typical Applications
IS 1570 (Part 7) 21CrMoVH
Boilers, pressure vessels, steam turbines, steam and water piping and other power plant equipment working at elevated temperature
IS 11169 (Part 1) 10Ni5Cr4
Cold heading and cold extrusion of parts that are case hardened; the standard covers bars, wire rods and wires of 2 to 100 mm (clause 1.1, Annex B)
Key Differences
IS 1570 (Part 7) 21CrMoVH specifies Mo, V which are not specified for IS 11169 (Part 1) 10Ni5Cr4.
IS 11169 (Part 1) 10Ni5Cr4 specifies Cu which is not specified for IS 1570 (Part 7) 21CrMoVH.
Can IS 1570 (Part 7) 21CrMoVH Be Substituted With IS 11169 (Part 1) 10Ni5Cr4?
IS 1570 (Part 7) 21CrMoVH and IS 11169 (Part 1) 10Ni5Cr4 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 1570 (Part 7) 21CrMoVH and IS 11169 (Part 1) 10Ni5Cr4?
IS 1570 (Part 7) 21CrMoVH specifies Mo, V which are not specified for IS 11169 (Part 1) 10Ni5Cr4. IS 11169 (Part 1) 10Ni5Cr4 specifies Cu which is not specified for IS 1570 (Part 7) 21CrMoVH.
Can IS 1570 (Part 7) 21CrMoVH be substituted with IS 11169 (Part 1) 10Ni5Cr4?
IS 1570 (Part 7) 21CrMoVH and IS 11169 (Part 1) 10Ni5Cr4 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.