Minimal Match — 35% match
based on chemical composition and mechanical property overlap.
IS 1570 (Part 7) 20CrNiMoNbVH (IS 1570 (Part 7):1992) and NF A35-565 100C6 are both steel grades.
Both fall under the Alloy Steel category.
IS 1570 (Part 7) 20CrNiMoNbVH is typically used for boilers, pressure vessels, steam turbines, steam and water piping and other power plant equipment working at elevated temperature, while NF A35-565 100C6 is commonly used for ball bearings, roller bearings, bearing races, rollers, precision tools, wear resistant parts.
IS 1570 (Part 7) 20CrNiMoNbVH is defined under Bureau of Indian Standards (IS), originating from India, while NF A35-565 100C6 is defined under Association Francaise de Normalisation (NF), originating from France.
As per chemical composition, IS 1570 (Part 7) 20CrNiMoNbVH vs NF A35-565 100C6 is a 40.7% match.
As per mechanical properties, the match is 60%.
Combined, this makes them a minimal match overall at 35%.
Frequently Compared With IS 1570 (Part 7) 20CrNiMoNbVH:
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) 20CrNiMoNbVH
NF A35-565 100C6
Tensile Strength
900-1050 MPa
850-1100 MPa
Yield Strength
>=750 MPa (0.2 % proof stress)
Not specified
Elongation
>=10%
Not specified
Condition
Bars, forgings, Q+T, thickness up to 250 (first row of Table 3)
Not specified
Hardness
Not specified
60-66 HRC
Typical Applications
IS 1570 (Part 7) 20CrNiMoNbVH
Boilers, pressure vessels, steam turbines, steam and water piping and other power plant equipment working at elevated temperature
IS 1570 (Part 7) 20CrNiMoNbVH specifies Ni, Mo, V, Nb which are not specified for NF A35-565 100C6.
Can IS 1570 (Part 7) 20CrNiMoNbVH Be Substituted With NF A35-565 100C6?
IS 1570 (Part 7) 20CrNiMoNbVH and NF A35-565 100C6 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) 20CrNiMoNbVH and NF A35-565 100C6?
IS 1570 (Part 7) 20CrNiMoNbVH specifies Ni, Mo, V, Nb which are not specified for NF A35-565 100C6.
Can IS 1570 (Part 7) 20CrNiMoNbVH be substituted with NF A35-565 100C6?
IS 1570 (Part 7) 20CrNiMoNbVH and NF A35-565 100C6 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.