Strong Match — 96.9% match
based on chemical composition and mechanical property overlap.
BS 970 (Part 3) 045M10 (BS 970 (Part 3):1991) and EN 10084 C10E (EN 10084:2008) are both steel grades.
Both fall under the Carbon Steel category.
BS 970 (Part 3) 045M10 is typically 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), while EN 10084 C10E is commonly used for case hardened machine parts: carburized or carbonitrided, then hardened (clause 3.1).
BS 970 (Part 3) 045M10 is defined under British Standards (BS), originating from United Kingdom, while EN 10084 C10E is defined under European Standard (EN), originating from Europe.
As per chemical composition, BS 970 (Part 3) 045M10 vs EN 10084 C10E is a 96.9% match.
Mechanical property data is not available for both grades, so this factor could not be scored.
Combined, this makes them a strong match overall at 96.9%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
BS 970 (Part 3) 045M10
EN 10084 C10E
Condition
Not specified
Soft annealed
Hardness
Not specified
Soft annealed: 131 HB max
Typical Applications
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)
EN 10084 C10E
Case hardened machine parts: carburized or carbonitrided, then hardened (clause 3.1)
Can BS 970 (Part 3) 045M10 Be Substituted With EN 10084 C10E?
BS 970 (Part 3) 045M10 and EN 10084 C10E overlap closely enough on chemistry and mechanical properties that EN 10084 C10E is often considered as a substitute for BS 970 (Part 3) 045M10 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
What is the difference between BS 970 (Part 3) 045M10 and EN 10084 C10E?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can BS 970 (Part 3) 045M10 be substituted with EN 10084 C10E?
BS 970 (Part 3) 045M10 and EN 10084 C10E overlap closely enough on chemistry and mechanical properties that EN 10084 C10E is often considered as a substitute for BS 970 (Part 3) 045M10 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.