Minimal Match — 35% match
based on chemical composition and mechanical property overlap.
IS 11169 (Part 1) 15C4 (IS 11169 (Part 1):2022) and BS 970 (Part 1) 040A10 (BS 970 (Part 1):1991) are both steel grades.
Both fall under the Carbon Steel category.
IS 11169 (Part 1) 15C4 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) 040A10 is commonly used for used for bolts, studs, shafts, brackets, fabricated components, and general engineering parts..
IS 11169 (Part 1) 15C4 is defined under Bureau of Indian Standards (IS), originating from India, while BS 970 (Part 1) 040A10 is defined under British Standards (BS), originating from United Kingdom.
As per chemical composition, IS 11169 (Part 1) 15C4 vs BS 970 (Part 1) 040A10 is a 76.6% 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) 15C4
BS 970 (Part 1) 040A10
Hardness, annealed (+AC)
<=140 HBW
Not specified
Typical Applications
IS 11169 (Part 1) 15C4
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) 040A10
Used for bolts, studs, shafts, brackets, fabricated components, and general engineering parts.
Key Differences
IS 11169 (Part 1) 15C4 specifies Cr, Cu, Mo, Ni which are not specified for BS 970 (Part 1) 040A10.
Can IS 11169 (Part 1) 15C4 Be Substituted With BS 970 (Part 1) 040A10?
IS 11169 (Part 1) 15C4 and BS 970 (Part 1) 040A10 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) 15C4 and BS 970 (Part 1) 040A10?
IS 11169 (Part 1) 15C4 specifies Cr, Cu, Mo, Ni which are not specified for BS 970 (Part 1) 040A10.
Can IS 11169 (Part 1) 15C4 be substituted with BS 970 (Part 1) 040A10?
IS 11169 (Part 1) 15C4 and BS 970 (Part 1) 040A10 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.