Strong Match — 91.8% match
based on chemical composition and mechanical property overlap.
IS 4432 10C4 (IS 4432:1988) and BS 970 (Part 3) 045A10 (BS 970 (Part 3):1991) are both steel grades.
Both fall under the Carbon Steel category.
IS 4432 10C4 is typically used for forgings and fabrication of case-hardened machine or automobile parts, while BS 970 (Part 3) 045A10 is commonly used for bright cold finished bars (cold drawn, turned or precision ground) for general engineering purposes, in straight lengths; case hardening steel, carbon and carbon manganese (table 14).
IS 4432 10C4 is defined under Bureau of Indian Standards (IS), originating from India, while BS 970 (Part 3) 045A10 is defined under British Standards (BS), originating from United Kingdom.
As per chemical composition, IS 4432 10C4 vs BS 970 (Part 3) 045A10 is a 91.8% match.
Mechanical property data is not available for both grades, so this factor could not be scored.
Combined, this makes them a strong match overall at 91.8%.
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 10C4
BS 970 (Part 3) 045A10
Core Tensile Strength
550-800 MPa (16 mm) / 500-650 MPa (30 mm)
Not specified
Core Yield Strength
>=330 MPa (16 mm) / >=300 MPa (30 mm)
Not specified
Core Elongation
>=13% (16 mm) / >=16% (30 mm)
Not specified
Core Reduction of Area
>=40% (16 mm) / >=45% (30 mm)
Not specified
Hardness, annealed (A)
<=131 HB
Not specified
Typical Applications
IS 4432 10C4
Forgings and fabrication of case-hardened machine or automobile parts
BS 970 (Part 3) 045A10
Bright cold finished bars (cold drawn, turned or precision ground) for general engineering purposes, in straight lengths; case hardening steel, carbon and carbon manganese (Table 14)
Can IS 4432 10C4 Be Substituted With BS 970 (Part 3) 045A10?
IS 4432 10C4 and BS 970 (Part 3) 045A10 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 3) 045A10 is often considered as a substitute for IS 4432 10C4 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
What is the difference between IS 4432 10C4 and BS 970 (Part 3) 045A10?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can IS 4432 10C4 be substituted with BS 970 (Part 3) 045A10?
IS 4432 10C4 and BS 970 (Part 3) 045A10 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 3) 045A10 is often considered as a substitute for IS 4432 10C4 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.