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BS 970 (Part 1) 125A15 vs SAE J403 1515

Strong Match — 100% match based on chemical composition and mechanical property overlap.

BS 970 (Part 1) 125A15 (BS 970 (Part 1):1991) and SAE J403 1515 (SAE J403:2014) are both steel grades. Both fall under the Carbon Steel category. BS 970 (Part 1) 125A15 is typically used for case hardening steel (section four), while SAE J403 1515 is commonly used for chemistry-only grade; product scope as listed in the composition notes. BS 970 (Part 1) 125A15 is defined under British Standards (BS), originating from United Kingdom, while SAE J403 1515 is defined under SAE International, originating from United States.

As per chemical composition, BS 970 (Part 1) 125A15 vs SAE J403 1515 is a 100% 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 100%.

Frequently Compared With BS 970 (Part 1) 125A15:
BS 970 (Part 1) 040A10 BS 970 (Part 1) 040A12 BS 970 (Part 1) 045M10 BS 970 (Part 1) 060A67 BS 970 (Part 1) 060A72 BS 970 (Part 1) 080A15 BS 970 (Part 1) 040A04 BS 970 (Part 1) 045A10 BS 970 (Part 3) 045A10 BS 970 (Part 3) 045M10 BS 970 (Part 1) 055M15 BS 970 (Part 1) 060A62
Match Breakdown
CHEMISTRY MATCH
100%
MECHANICAL MATCH
No shared data
OVERALL
100%
Specifications
Property BS 970 (Part 1) 125A15 SAE J403 1515
Standard BS 970 (Part 1):1991 SAE J403:2014
Category Carbon Steel Carbon Steel
C (%) 0.13-0.18 0.13-0.18
Mn (%) 1.10-1.40 1.10-1.40
P (%) Not specified <=0.030 (flat rolled), <=0.040 (long products)
S (%) Not specified <=0.035 (flat rolled), <=0.050 (long products)
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 1) 125A15 SAE J403 1515
Condition Case hardened, 19 mm test bar Not specified
Tensile Strength 650 MPa min Not specified
Elongation 14 % min Not specified
Typical Applications
BS 970 (Part 1) 125A15
Case hardening steel (section four)
SAE J403 1515
Chemistry-only grade; product scope as listed in the composition notes
Key Differences
Can BS 970 (Part 1) 125A15 Be Substituted With SAE J403 1515?
BS 970 (Part 1) 125A15 and SAE J403 1515 overlap closely enough on chemistry and mechanical properties that SAE J403 1515 is often considered as a substitute for BS 970 (Part 1) 125A15 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
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BS 970 (Part 1) 125A15
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SAE J403 1515
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Frequently Asked Questions
What is the difference between BS 970 (Part 1) 125A15 and SAE J403 1515?
SAE J403 1515 specifies P, S which are not specified for BS 970 (Part 1) 125A15.
Can BS 970 (Part 1) 125A15 be substituted with SAE J403 1515?
BS 970 (Part 1) 125A15 and SAE J403 1515 overlap closely enough on chemistry and mechanical properties that SAE J403 1515 is often considered as a substitute for BS 970 (Part 1) 125A15 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.