Minimal Match — 53% match
based on chemical composition and mechanical property overlap.
IS 5517 40C8 (IS 5517:1993) and BS 970 (Part 1) 055M15 (BS 970 (Part 1):1991) are both steel grades.
Both fall under the Carbon Steel category.
IS 5517 40C8 is typically used for crankshafts, couplings, bolts, spindles, axles, gears, while BS 970 (Part 1) 055M15 is commonly used for as-rolled, or as-rolled and softened, steel (section two).
IS 5517 40C8 is defined under Bureau of Indian Standards (IS), originating from India, while BS 970 (Part 1) 055M15 is defined under British Standards (BS), originating from United Kingdom.
As per chemical composition, IS 5517 40C8 vs BS 970 (Part 1) 055M15 is a 79.6% match.
As per mechanical properties, the match is 0%.
Combined, this makes them a minimal match overall at 53%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
As-rolled, or as-rolled and softened, steel (section two)
Key Differences
IS 5517 40C8 specifies Si, S, P which are not specified for BS 970 (Part 1) 055M15.
Can IS 5517 40C8 Be Substituted With BS 970 (Part 1) 055M15?
IS 5517 40C8 and BS 970 (Part 1) 055M15 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 40C8 and BS 970 (Part 1) 055M15?
IS 5517 40C8 specifies Si, S, P which are not specified for BS 970 (Part 1) 055M15.
Can IS 5517 40C8 be substituted with BS 970 (Part 1) 055M15?
IS 5517 40C8 and BS 970 (Part 1) 055M15 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.