Minimal Match — 35% match
based on chemical composition and mechanical property overlap.
IS 11169 (Part 1) 4C3 (IS 11169 (Part 1):2022) and BS 970 (Part 1) 040A12 (BS 970 (Part 1):1991) are both steel grades.
Both fall under the Carbon Steel category.
IS 11169 (Part 1) 4C3 is typically used for cold heading and cold extrusion of parts not heat treated after cold forming; the standard covers bars, wire rods and wires of 2 to 100 mm (clause 1.1, annex a), while BS 970 (Part 1) 040A12 is commonly used for as-rolled, or as-rolled and softened, steel (section two).
IS 11169 (Part 1) 4C3 is defined under Bureau of Indian Standards (IS), originating from India, while BS 970 (Part 1) 040A12 is defined under British Standards (BS), originating from United Kingdom.
As per chemical composition, IS 11169 (Part 1) 4C3 vs BS 970 (Part 1) 040A12 is a 59.6% match.
Mechanical property data is not available for both grades, so this factor could not be scored.
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 11169 (Part 1) 4C3
BS 970 (Part 1) 040A12
Reduction of Area, as rolled (+AR)
>=70% (for information)
Not specified
Tensile Strength, as rolled (+AR)
<=390 MPa (over 5 to 100 mm)
Not specified
Typical Applications
IS 11169 (Part 1) 4C3
Cold heading and cold extrusion of parts not heat treated after cold forming; the standard covers bars, wire rods and wires of 2 to 100 mm (clause 1.1, Annex A)
BS 970 (Part 1) 040A12
As-rolled, or as-rolled and softened, steel (section two)
Key Differences
IS 11169 (Part 1) 4C3 specifies Al, Cr, Cu, Mo which are not specified for BS 970 (Part 1) 040A12.
Can IS 11169 (Part 1) 4C3 Be Substituted With BS 970 (Part 1) 040A12?
IS 11169 (Part 1) 4C3 and BS 970 (Part 1) 040A12 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 11169 (Part 1) 4C3 and BS 970 (Part 1) 040A12?
IS 11169 (Part 1) 4C3 specifies Al, Cr, Cu, Mo which are not specified for BS 970 (Part 1) 040A12.
Can IS 11169 (Part 1) 4C3 be substituted with BS 970 (Part 1) 040A12?
IS 11169 (Part 1) 4C3 and BS 970 (Part 1) 040A12 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.