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BS 970 (Part 1) 055M15 vs SAE J403 1009

Strong Match — 95.3% match based on chemical composition and mechanical property overlap.

BS 970 (Part 1) 055M15 (BS 970 (Part 1):1991) and SAE J403 1009 (SAE J403:2001) are both steel grades. Both fall under the Carbon Steel category. BS 970 (Part 1) 055M15 is typically used for as-rolled, or as-rolled and softened, steel (section two), while SAE J403 1009 is commonly used for chemistry-only grade; product scope as listed in the composition notes. BS 970 (Part 1) 055M15 is defined under British Standards (BS), originating from United Kingdom, while SAE J403 1009 is defined under SAE International, originating from United States.

As per chemical composition, BS 970 (Part 1) 055M15 vs SAE J403 1009 is a 95.3% 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 95.3%.

Frequently Compared With BS 970 (Part 1) 055M15:
BS 970 (Part 1) 040A10 BS 970 (Part 1) 060A40 BS 970 (Part 1) 040A12 BS 970 (Part 1) 045A10 BS 970 (Part 1) 060A81 BS 970 (Part 3) 080A15 BS 970 (Part 1) 060A78 BS 970 (Part 1) 070A67 BS 970 (Part 1) 040A04 BS 970 (Part 3) 070M20 BS 970 (Part 1) 080A15 BS 970 (Part 1) 045M10
Match Breakdown
CHEMISTRY MATCH
95.3%
MECHANICAL MATCH
No shared data
OVERALL
95.3%
Specifications
Property BS 970 (Part 1) 055M15 SAE J403 1009
Standard BS 970 (Part 1):1991 SAE J403:2001
Category Carbon Steel Carbon Steel
C (%) <=0.20 <=0.15
Mn (%) <=0.80 <=0.60
P (%) Not specified <=0.030
S (%) Not specified <=0.050
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) 055M15 SAE J403 1009
Condition As-rolled Not specified
Tensile Strength 310 MPa min Not specified
Elongation 25 % min Not specified
Hardness 121 HB min Not specified
Typical Applications
BS 970 (Part 1) 055M15
As-rolled, or as-rolled and softened, steel (section two)
SAE J403 1009
Chemistry-only grade; product scope as listed in the composition notes
Key Differences
Can BS 970 (Part 1) 055M15 Be Substituted With SAE J403 1009?
BS 970 (Part 1) 055M15 and SAE J403 1009 overlap closely enough on chemistry and mechanical properties that SAE J403 1009 is often considered as a substitute for BS 970 (Part 1) 055M15 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) 055M15
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SAE J403 1009
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Frequently Asked Questions
What is the difference between BS 970 (Part 1) 055M15 and SAE J403 1009?
SAE J403 1009 specifies P, S which are not specified for BS 970 (Part 1) 055M15.
Can BS 970 (Part 1) 055M15 be substituted with SAE J403 1009?
BS 970 (Part 1) 055M15 and SAE J403 1009 overlap closely enough on chemistry and mechanical properties that SAE J403 1009 is often considered as a substitute for BS 970 (Part 1) 055M15 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.