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IS 11169 (Part 1) 45C7S3 vs BS 970 (Part 3) 045M10

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

IS 11169 (Part 1) 45C7S3 (IS 11169 (Part 1):2022) and BS 970 (Part 3) 045M10 (BS 970 (Part 3):1991) are both steel grades. Both fall under the Carbon Steel category. IS 11169 (Part 1) 45C7S3 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 3) 045M10 is commonly used for bright cold finished bars (cold drawn, turned or precision ground) for general engineering purposes, in straight lengths; case hardening steel, carbon and carbon manganese (table 14). IS 11169 (Part 1) 45C7S3 is defined under Bureau of Indian Standards (IS), originating from India, while BS 970 (Part 3) 045M10 is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, IS 11169 (Part 1) 45C7S3 vs BS 970 (Part 3) 045M10 is a 78.3% 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) 45C7S3:
BS 970 (Part 1) 040A10 BS 970 (Part 3) 070M55 BS 970 (Part 1) 080A20 BS 970 (Part 1) 045A10 BS 970 (Part 3) 045A10 BS 970 (Part 1) 045M10 BS 970 (Part 1) 055M15 BS 970 (Part 1) 060A32 BS 970 (Part 1) 040A12 BS 970 (Part 1) 045A10 BS 970 (Part 1) 040A04 BS 970 (Part 1) 045M10
Match Breakdown
CHEMISTRY MATCH
78.3%
MECHANICAL MATCH
No shared data
OVERALL
69.9%
Specifications
Property IS 11169 (Part 1) 45C7S3 BS 970 (Part 3) 045M10
Standard IS 11169 (Part 1):2022 BS 970 (Part 3):1991
Category Carbon Steel Carbon Steel
C (%) 0.42-0.50 0.07-0.13
Cu (%) <=0.25 Not specified
Mn (%) 0.50-0.80 0.30-0.60
P (%) <=0.025 <=0.05
S (%) 0.020-0.035 <=0.05
Si (%) <=0.30 0.10-0.40
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) 45C7S3 BS 970 (Part 3) 045M10
Tensile Strength, annealed (+AC) <=600 MPa (over 5 to 40 mm) Not specified
Typical Applications
IS 11169 (Part 1) 45C7S3
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 3) 045M10
Bright cold finished bars (cold drawn, turned or precision ground) for general engineering purposes, in straight lengths; case hardening steel, carbon and carbon manganese (Table 14)
Key Differences
Can IS 11169 (Part 1) 45C7S3 Be Substituted With BS 970 (Part 3) 045M10?
IS 11169 (Part 1) 45C7S3 and BS 970 (Part 3) 045M10 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) 45C7S3
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BS 970 (Part 3) 045M10
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Frequently Asked Questions
What is the difference between IS 11169 (Part 1) 45C7S3 and BS 970 (Part 3) 045M10?
IS 11169 (Part 1) 45C7S3 specifies Cu which is not specified for BS 970 (Part 3) 045M10.
Can IS 11169 (Part 1) 45C7S3 be substituted with BS 970 (Part 3) 045M10?
IS 11169 (Part 1) 45C7S3 and BS 970 (Part 3) 045M10 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.