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IS 11169 (Part 1) 30C8 vs BS 970 (Part 1) 040A12

Close Alternative — 80% match based on chemical composition and mechanical property overlap.

IS 11169 (Part 1) 30C8 (IS 11169 (Part 1):1984) 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) 30C8 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) 040A12 is commonly used for as-rolled, or as-rolled and softened, steel (section two). IS 11169 (Part 1) 30C8 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) 30C8 vs BS 970 (Part 1) 040A12 is a 80% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a close alternative overall at 80%.

Frequently Compared With IS 11169 (Part 1) 30C8:
BS 970 (Part 3) 070M55 BS 970 (Part 1) 040A10 BS 970 (Part 1) 080A20 BS 970 (Part 1) 045M10 BS 970 (Part 3) 045M10 BS 970 (Part 1) 055M15 BS 970 (Part 1) 060A32 BS 970 (Part 1) 040A04 BS 970 (Part 3) 045A10 BS 970 (Part 1) 045M10 BS 970 (Part 1) 045A10 BS 970 (Part 1) 045A10
Match Breakdown
CHEMISTRY MATCH
80%
MECHANICAL MATCH
No shared data
OVERALL
80%
Specifications
Property IS 11169 (Part 1) 30C8 BS 970 (Part 1) 040A12
Standard IS 11169 (Part 1):1984 BS 970 (Part 1):1991
Category Carbon Steel Carbon Steel
C (%) 0.25-0.35 0.10-0.15
Mn (%) 0.60-0.90 0.30-0.50
Si (%) 0.10-0.35 Not specified
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) 30C8 BS 970 (Part 1) 040A12
Hardness, annealed <=160 HB Not specified
Typical Applications
IS 11169 (Part 1) 30C8
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) 040A12
As-rolled, or as-rolled and softened, steel (section two)
Key Differences
Can IS 11169 (Part 1) 30C8 Be Substituted With BS 970 (Part 1) 040A12?
IS 11169 (Part 1) 30C8 and BS 970 (Part 1) 040A12 are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.
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IS 11169 (Part 1) 30C8
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BS 970 (Part 1) 040A12
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Frequently Asked Questions
What is the difference between IS 11169 (Part 1) 30C8 and BS 970 (Part 1) 040A12?
IS 11169 (Part 1) 30C8 specifies Si which is not specified for BS 970 (Part 1) 040A12.
Can IS 11169 (Part 1) 30C8 be substituted with BS 970 (Part 1) 040A12?
IS 11169 (Part 1) 30C8 and BS 970 (Part 1) 040A12 are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.