Minimal Match — 51.8% match
based on chemical composition and mechanical property overlap.
IS 4432 15Cr3-S (IS 4432:1988) and NF A35-565 100C6 are both steel grades.
Both fall under the Alloy Steel category.
IS 4432 15Cr3-S is typically used for forgings and fabrication of case-hardened machine or automobile parts, while NF A35-565 100C6 is commonly used for ball bearings, roller bearings, bearing races, rollers, precision tools, wear resistant parts.
IS 4432 15Cr3-S 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 4432 15Cr3-S vs NF A35-565 100C6 is a 74.9% match.
As per mechanical properties, the match is 5.6%.
Combined, this makes them a minimal match overall at 51.8%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
IS 4432 15Cr3-S
NF A35-565 100C6
Core Tensile Strength
650-900 MPa (16 mm) / 600-900 MPa (30 mm)
Not specified
Core Yield Strength
>=430 MPa (16 mm) / >=360 MPa (30 mm)
Not specified
Core Elongation
>=12% (16 mm) / >=14% (30 mm)
Not specified
Core Reduction of Area
>=35% (16 mm) / >=40% (30 mm)
Not specified
Hardness, annealed (A)
<=174 HB
Not specified
Tensile Strength
Not specified
850-1100 MPa
Hardness
Not specified
60-66 HRC
Typical Applications
IS 4432 15Cr3-S
Forgings and fabrication of case-hardened machine or automobile parts
Can IS 4432 15Cr3-S Be Substituted With NF A35-565 100C6?
IS 4432 15Cr3-S 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 4432 15Cr3-S and NF A35-565 100C6?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can IS 4432 15Cr3-S be substituted with NF A35-565 100C6?
IS 4432 15Cr3-S 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.