Minimal Match — 52.2% match
based on chemical composition and mechanical property overlap.
IS 5517 55C8 (IS 5517:1993) and BS 970 (Part 1) 045M10 (BS 970 (Part 1):1991) are both steel grades.
Both fall under the Carbon Steel category.
IS 5517 55C8 is defined under Bureau of Indian Standards (IS), originating from India, while BS 970 (Part 1) 045M10 is defined under British Standards (BS), originating from United Kingdom.
As per chemical composition, IS 5517 55C8 vs BS 970 (Part 1) 045M10 is a 78.3% match.
As per mechanical properties, the match is 0%.
Combined, this makes them a minimal match overall at 52.2%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
IS 5517 55C8
BS 970 (Part 1) 045M10
Tensile Strength
700-850 MPa
430 MPa min
Yield Strength (0.2% proof)
460 MPa min
Not specified
Elongation
>=15%
18 % min
Hardness (annealed)
<=220 HB
Not specified
Condition
Hardened and tempered, ruling section up to 63 mm
Case hardened, 19 mm test bar
Typical Applications
IS 5517 55C8
Not documented
BS 970 (Part 1) 045M10
Case hardening steel (section four)
Key Differences
IS 5517 55C8 specifies Si, S, P which are not specified for BS 970 (Part 1) 045M10.
Can IS 5517 55C8 Be Substituted With BS 970 (Part 1) 045M10?
IS 5517 55C8 and BS 970 (Part 1) 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.
What is the difference between IS 5517 55C8 and BS 970 (Part 1) 045M10?
IS 5517 55C8 specifies Si, S, P which are not specified for BS 970 (Part 1) 045M10.
Can IS 5517 55C8 be substituted with BS 970 (Part 1) 045M10?
IS 5517 55C8 and BS 970 (Part 1) 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.