Strong Match — 97% match
based on chemical composition and mechanical property overlap.
BS 970 (Part 1) 080A20 (BS 970 (Part 1):1991) and SAE J403 1021 (SAE J403:2009) are both steel grades.
Both fall under the Carbon Steel category.
BS 970 (Part 1) 080A20 is typically used for used for nuts, bolts, hydraulic fittings, precision turned parts, sleeves, and couplings., while SAE J403 1021 is commonly used for chemistry-only grade; product scope as listed in the composition notes.
BS 970 (Part 1) 080A20 is defined under British Standards (BS), originating from United Kingdom, while SAE J403 1021 is defined under SAE International, originating from United States.
As per chemical composition, BS 970 (Part 1) 080A20 vs SAE J403 1021 is a 97% 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 97%.
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) 080A20
Used for nuts, bolts, hydraulic fittings, precision turned parts, sleeves, and couplings.
SAE J403 1021
Chemistry-only grade; product scope as listed in the composition notes
Key Differences
SAE J403 1021 specifies P, S which are not specified for BS 970 (Part 1) 080A20.
Can BS 970 (Part 1) 080A20 Be Substituted With SAE J403 1021?
BS 970 (Part 1) 080A20 and SAE J403 1021 overlap closely enough on chemistry and mechanical properties that SAE J403 1021 is often considered as a substitute for BS 970 (Part 1) 080A20 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) 080A20 and SAE J403 1021?
SAE J403 1021 specifies P, S which are not specified for BS 970 (Part 1) 080A20.
Can BS 970 (Part 1) 080A20 be substituted with SAE J403 1021?
BS 970 (Part 1) 080A20 and SAE J403 1021 overlap closely enough on chemistry and mechanical properties that SAE J403 1021 is often considered as a substitute for BS 970 (Part 1) 080A20 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.