Minimal Match — 54.4% match
based on chemical composition and mechanical property overlap.
UNI 7845 C45 (UNI 7845:1978) and BS 970 (Part 1) 055M15 (BS 970 (Part 1):1991) are both steel grades.
Both fall under the Carbon Steel category.
UNI 7845 C45 is typically used for shafts,axles,gears,studs,bolts,spindles,rollers,general engineering components, while BS 970 (Part 1) 055M15 is commonly used for as-rolled, or as-rolled and softened, steel (section two).
UNI 7845 C45 is defined under Ente Nazionale Italiano di Unificazione (UNI), originating from Italy, while BS 970 (Part 1) 055M15 is defined under British Standards (BS), originating from United Kingdom.
As per chemical composition, UNI 7845 C45 vs BS 970 (Part 1) 055M15 is a 81.6% match.
As per mechanical properties, the match is 0%.
Combined, this makes them a minimal match overall at 54.4%.
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
UNI 7845 C45 specifies Si, P, S which are not specified for BS 970 (Part 1) 055M15.
Can UNI 7845 C45 Be Substituted With BS 970 (Part 1) 055M15?
UNI 7845 C45 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 UNI 7845 C45 and BS 970 (Part 1) 055M15?
UNI 7845 C45 specifies Si, P, S which are not specified for BS 970 (Part 1) 055M15.
Can UNI 7845 C45 be substituted with BS 970 (Part 1) 055M15?
UNI 7845 C45 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.