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IS 11169 (Part 1) 35C7S3 vs BS 970 (Part 1) 045A10

Minimal Match — 50.9% match based on chemical composition and mechanical property overlap.

IS 11169 (Part 1) 35C7S3 (IS 11169 (Part 1):2022) and BS 970 (Part 1) 045A10 (BS 970 (Part 1):1991) are both steel grades. Both fall under the Carbon Steel category. IS 11169 (Part 1) 35C7S3 is typically used for cold heading and cold extrusion of parts that are quenched and tempered; the standard covers bars, wire rods and wires of 2 to 100 mm (clause 1.1, annex c), while BS 970 (Part 1) 045A10 is commonly used for case hardening steel (section four). IS 11169 (Part 1) 35C7S3 is defined under Bureau of Indian Standards (IS), originating from India, while BS 970 (Part 1) 045A10 is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, IS 11169 (Part 1) 35C7S3 vs BS 970 (Part 1) 045A10 is a 76.4% match. As per mechanical properties, the match is 0%. Combined, this makes them a minimal match overall at 50.9%.

Frequently Compared With IS 11169 (Part 1) 35C7S3:
BS 970 (Part 1) 040A10 BS 970 (Part 1) 080A20 BS 970 (Part 3) 070M55 BS 970 (Part 1) 040A12 BS 970 (Part 1) 045M10 BS 970 (Part 1) 055M15 BS 970 (Part 1) 040A04 BS 970 (Part 1) 045A10 BS 970 (Part 3) 045A10 BS 970 (Part 1) 045M10 BS 970 (Part 3) 045M10 BS 970 (Part 1) 060A32
Match Breakdown
CHEMISTRY MATCH
76.4%
MECHANICAL MATCH
0%
OVERALL
50.9%
Specifications
Property IS 11169 (Part 1) 35C7S3 BS 970 (Part 1) 045A10
Standard IS 11169 (Part 1):2022 BS 970 (Part 1):1991
Category Carbon Steel Carbon Steel
C (%) 0.32-0.39 0.08-0.13
Cu (%) <=0.25 Not specified
Mn (%) 0.50-0.80 0.30-0.60
P (%) <=0.025 Not specified
S (%) 0.020-0.035 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) 35C7S3 BS 970 (Part 1) 045A10
Tensile Strength, annealed (+AC) <=560 MPa (over 5 to 40 mm) Not specified
Condition Not specified Case hardened, 19 mm test bar
Tensile Strength Not specified 430 MPa min
Elongation Not specified 18 % min
Typical Applications
IS 11169 (Part 1) 35C7S3
Cold heading and cold extrusion of parts that are quenched and tempered; the standard covers bars, wire rods and wires of 2 to 100 mm (clause 1.1, Annex C)
BS 970 (Part 1) 045A10
Case hardening steel (section four)
Key Differences
Can IS 11169 (Part 1) 35C7S3 Be Substituted With BS 970 (Part 1) 045A10?
IS 11169 (Part 1) 35C7S3 and BS 970 (Part 1) 045A10 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) 35C7S3
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BS 970 (Part 1) 045A10
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Frequently Asked Questions
What is the difference between IS 11169 (Part 1) 35C7S3 and BS 970 (Part 1) 045A10?
IS 11169 (Part 1) 35C7S3 specifies Cu, P, S, Si which are not specified for BS 970 (Part 1) 045A10.
Can IS 11169 (Part 1) 35C7S3 be substituted with BS 970 (Part 1) 045A10?
IS 11169 (Part 1) 35C7S3 and BS 970 (Part 1) 045A10 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.