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IS 11169 (Part 1) 20C4GC vs BS 970 (Part 1) 040A04

Close Alternative — 79.6% match based on chemical composition and mechanical property overlap.

IS 11169 (Part 1) 20C4GC (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) 20C4GC is typically used for cold heading and cold extrusion of parts that are case hardened; the standard covers bars, wire rods and wires of 2 to 100 mm (clause 1.1, annex b), while BS 970 (Part 1) 040A04 is commonly used for as-rolled, or as-rolled and softened, steel (section two). IS 11169 (Part 1) 20C4GC 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) 20C4GC vs BS 970 (Part 1) 040A04 is a 79.6% 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 79.6%.

Frequently Compared With IS 11169 (Part 1) 20C4GC:
BS 970 (Part 1) 040A10 BS 970 (Part 3) 070M55 BS 970 (Part 1) 080A20 BS 970 (Part 1) 045M10 BS 970 (Part 3) 045M10 BS 970 (Part 1) 060A32 BS 970 (Part 1) 045A10 BS 970 (Part 3) 045A10 BS 970 (Part 1) 040A12 BS 970 (Part 1) 045A10 BS 970 (Part 1) 055M15 BS 970 (Part 1) 045M10
Match Breakdown
CHEMISTRY MATCH
79.6%
MECHANICAL MATCH
No shared data
OVERALL
79.6%
Specifications
Property IS 11169 (Part 1) 20C4GC BS 970 (Part 1) 040A04
Standard IS 11169 (Part 1):2022 BS 970 (Part 1):1991
Category Carbon Steel Carbon Steel
C (%) 0.18-0.22 <=0.08
Cu (%) <=0.25 Not specified
Mn (%) 0.30-0.60 0.30-0.50
P (%) <=0.025 Not specified
S (%) <=0.025 Not specified
Si (%) <=0.30 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) 20C4GC BS 970 (Part 1) 040A04
Tensile Strength, as rolled (+AR) <=530 MPa (over 5 to 100 mm) Not specified
Typical Applications
IS 11169 (Part 1) 20C4GC
Cold heading and cold extrusion of parts that are case hardened; the standard covers bars, wire rods and wires of 2 to 100 mm (clause 1.1, Annex B)
BS 970 (Part 1) 040A04
As-rolled, or as-rolled and softened, steel (section two)
Key Differences
Can IS 11169 (Part 1) 20C4GC Be Substituted With BS 970 (Part 1) 040A04?
IS 11169 (Part 1) 20C4GC and BS 970 (Part 1) 040A04 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.
On M-EX Right Now
IS 11169 (Part 1) 20C4GC
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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) 20C4GC and BS 970 (Part 1) 040A04?
IS 11169 (Part 1) 20C4GC specifies Cu, P, S, Si which are not specified for BS 970 (Part 1) 040A04.
Can IS 11169 (Part 1) 20C4GC be substituted with BS 970 (Part 1) 040A04?
IS 11169 (Part 1) 20C4GC and BS 970 (Part 1) 040A04 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.