Strong Match — 95.1% match
based on chemical composition and mechanical property overlap.
BS 970 (Part 1) 040A12 (BS 970 (Part 1):1991) and BS 970 (Part 1) 040A10 (BS 970 (Part 1):1991) are both steel grades.
Both fall under the Carbon Steel category.
BS 970 (Part 1) 040A12 is typically used for as-rolled, or as-rolled and softened, steel (section two), while BS 970 (Part 1) 040A10 is commonly used for used for bolts, studs, shafts, brackets, fabricated components, and general engineering parts..
BS 970 (Part 1) 040A12 is defined under British Standards (BS), originating from United Kingdom, while BS 970 (Part 1) 040A10 is defined under British Standards (BS), originating from United Kingdom.
As per chemical composition, BS 970 (Part 1) 040A12 vs BS 970 (Part 1) 040A10 is a 95.1% 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 95.1%.
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 1) 040A12
As-rolled, or as-rolled and softened, steel (section two)
BS 970 (Part 1) 040A10
Used for bolts, studs, shafts, brackets, fabricated components, and general engineering parts.
Can BS 970 (Part 1) 040A12 Be Substituted With BS 970 (Part 1) 040A10?
BS 970 (Part 1) 040A12 and BS 970 (Part 1) 040A10 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 1) 040A10 is often considered as a substitute for BS 970 (Part 1) 040A12 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 1) 040A12 and BS 970 (Part 1) 040A10?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can BS 970 (Part 1) 040A12 be substituted with BS 970 (Part 1) 040A10?
BS 970 (Part 1) 040A12 and BS 970 (Part 1) 040A10 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 1) 040A10 is often considered as a substitute for BS 970 (Part 1) 040A12 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.