Strong Match — 92.9% match
based on chemical composition and mechanical property overlap.
BS 970 (Part 3) 045M10 (BS 970 (Part 3):1991) and SAE J403 1010 (SAE J403:2014) 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 SAE J403 1010 is commonly used for chemistry-only grade; product scope as listed in the composition notes.
BS 970 (Part 3) 045M10 is defined under British Standards (BS), originating from United Kingdom, while SAE J403 1010 is defined under SAE International, originating from United States.
As per chemical composition, BS 970 (Part 3) 045M10 vs SAE J403 1010 is a 92.9% 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 92.9%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
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)
SAE J403 1010
Chemistry-only grade; product scope as listed in the composition notes
Key Differences
BS 970 (Part 3) 045M10 specifies Si which is not specified for SAE J403 1010.
Can BS 970 (Part 3) 045M10 Be Substituted With SAE J403 1010?
BS 970 (Part 3) 045M10 and SAE J403 1010 overlap closely enough on chemistry and mechanical properties that SAE J403 1010 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 SAE J403 1010?
BS 970 (Part 3) 045M10 specifies Si which is not specified for SAE J403 1010.
Can BS 970 (Part 3) 045M10 be substituted with SAE J403 1010?
BS 970 (Part 3) 045M10 and SAE J403 1010 overlap closely enough on chemistry and mechanical properties that SAE J403 1010 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.