IS 11169 (Part 1) 25C9GC vs BS 970 (Part 1) 040A04
Minimal Match — 35% match
based on chemical composition and mechanical property overlap.
IS 11169 (Part 1) 25C9GC (IS 11169 (Part 1):2022) and BS 970 (Part 1) 040A04 (BS 970 (Part 1):1991) are both steel grades.
Both fall under the Carbon Steel category.
IS 11169 (Part 1) 25C9GC 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) 040A04 is commonly used for as-rolled, or as-rolled and softened, steel (section two).
IS 11169 (Part 1) 25C9GC is defined under Bureau of Indian Standards (IS), originating from India, while BS 970 (Part 1) 040A04 is defined under British Standards (BS), originating from United Kingdom.
As per chemical composition, IS 11169 (Part 1) 25C9GC vs BS 970 (Part 1) 040A04 is a 54.2% 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%.
Frequently Compared With IS 11169 (Part 1) 25C9GC:
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) 25C9GC
BS 970 (Part 1) 040A04
Reduction of Area, as rolled (+AR)
>=50% (for information)
Not specified
Tensile Strength, as rolled (+AR)
<=590 MPa (over 5 to 100 mm)
Not specified
Typical Applications
IS 11169 (Part 1) 25C9GC
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) 040A04
As-rolled, or as-rolled and softened, steel (section two)
Key Differences
IS 11169 (Part 1) 25C9GC specifies Al, Cr, Cu, Mo which are not specified for BS 970 (Part 1) 040A04.
Can IS 11169 (Part 1) 25C9GC Be Substituted With BS 970 (Part 1) 040A04?
IS 11169 (Part 1) 25C9GC and BS 970 (Part 1) 040A04 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) 25C9GC and BS 970 (Part 1) 040A04?
IS 11169 (Part 1) 25C9GC specifies Al, Cr, Cu, Mo which are not specified for BS 970 (Part 1) 040A04.
Can IS 11169 (Part 1) 25C9GC be substituted with BS 970 (Part 1) 040A04?
IS 11169 (Part 1) 25C9GC and BS 970 (Part 1) 040A04 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.