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IS 11169 (Part 1) 25C4 vs BS 970 (Part 1) 040A04

Related Material — 69.9% match based on chemical composition and mechanical property overlap.

IS 11169 (Part 1) 25C4 (IS 11169 (Part 1):1984) 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) 25C4 is typically used for cold heading and cold extrusion; the standard covers wires, wire rods and bars of 2 to 100 mm diameter (clause 1.1), while BS 970 (Part 1) 040A04 is commonly used for as-rolled, or as-rolled and softened, steel (section two). IS 11169 (Part 1) 25C4 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) 25C4 vs BS 970 (Part 1) 040A04 is a 89.5% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a related material overall at 69.9%.

Frequently Compared With IS 11169 (Part 1) 25C4:
BS 970 (Part 1) 040A10 BS 970 (Part 3) 070M55 BS 970 (Part 1) 080A20 BS 970 (Part 3) 045M10 BS 970 (Part 1) 040A12 BS 970 (Part 1) 045A10 BS 970 (Part 1) 045A10 BS 970 (Part 3) 045A10 BS 970 (Part 1) 045M10 BS 970 (Part 1) 045M10 BS 970 (Part 1) 060A32 BS 970 (Part 1) 055M15
Match Breakdown
CHEMISTRY MATCH
89.5%
MECHANICAL MATCH
No shared data
OVERALL
69.9%
Specifications
Property IS 11169 (Part 1) 25C4 BS 970 (Part 1) 040A04
Standard IS 11169 (Part 1):1984 BS 970 (Part 1):1991
Category Carbon Steel Carbon Steel
C (%) 0.20-0.30 <=0.08
Mn (%) 0.30-0.60 0.30-0.50
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) 25C4 BS 970 (Part 1) 040A04
Hardness, annealed <=150 HB Not specified
Typical Applications
IS 11169 (Part 1) 25C4
Cold heading and cold extrusion; the standard covers wires, wire rods and bars of 2 to 100 mm diameter (clause 1.1)
BS 970 (Part 1) 040A04
As-rolled, or as-rolled and softened, steel (section two)
Can IS 11169 (Part 1) 25C4 Be Substituted With BS 970 (Part 1) 040A04?
IS 11169 (Part 1) 25C4 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.
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IS 11169 (Part 1) 25C4
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BS 970 (Part 1) 040A04
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Frequently Asked Questions
What is the difference between IS 11169 (Part 1) 25C4 and BS 970 (Part 1) 040A04?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can IS 11169 (Part 1) 25C4 be substituted with BS 970 (Part 1) 040A04?
IS 11169 (Part 1) 25C4 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.