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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):1983) 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 for mechanical and allied engineering purposes (table 11 mechanical properties)., 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) 045A10 BS 970 (Part 3) 045A10 BS 970 (Part 1) 040A04 BS 970 (Part 1) 040A10 BS 970 (Part 1) 040A12 BS 970 (Part 1) 045A10 BS 970 (Part 1) 045M10 BS 970 (Part 1) 045M10 BS 970 (Part 3) 045M10 BS 970 (Part 1) 055M15 BS 970 (Part 1) 060A32 BS 970 (Part 1) 060A40
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):1983 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 (%) <=0.050 <=0.030 (flat rolled), <=0.040 (long products)
S (%) <=0.050 <=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.
Typical Applications
BS 970 (Part 1) 125A15
Case hardening steel for mechanical and allied engineering purposes (Table 11 mechanical properties).
SAE J403 1515
Chemistry-only grade; product scope as listed in the composition notes
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.
On M-EX Right Now
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?
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) 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.