Post Stock Login Register

BS 970 (Part 1) 125A15 vs BS 970 (Part 3) 045M10

Close Alternative — 80% match based on chemical composition and mechanical property overlap.

BS 970 (Part 1) 125A15 (BS 970 (Part 1):1991) and BS 970 (Part 3) 045M10 (BS 970 (Part 3):1991) 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 BS 970 (Part 3) 045M10 is commonly used for bright cold finished bars (cold drawn, turned or precision ground) for general engineering purposes, in straight lengths; case hardening steel, carbon and carbon manganese (table 14). BS 970 (Part 1) 125A15 is defined under British Standards (BS), originating from United Kingdom, while BS 970 (Part 3) 045M10 is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, BS 970 (Part 1) 125A15 vs BS 970 (Part 3) 045M10 is a 80% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a close alternative overall at 80%.

Frequently Compared With BS 970 (Part 1) 125A15:
BS 970 (Part 1) 060A67 BS 970 (Part 1) 080A15 BS 970 (Part 1) 040A10 BS 970 (Part 1) 040A12 BS 970 (Part 1) 045A10 BS 970 (Part 1) 045M10 BS 970 (Part 1) 060A72 BS 970 (Part 1) 040A04 BS 970 (Part 3) 045A10 BS 970 (Part 1) 055M15 BS 970 (Part 1) 060A62 BS 970 (Part 1) 060A78
Match Breakdown
CHEMISTRY MATCH
80%
MECHANICAL MATCH
No shared data
OVERALL
80%
Specifications
Property BS 970 (Part 1) 125A15 BS 970 (Part 3) 045M10
Standard BS 970 (Part 1):1991 BS 970 (Part 3):1991
Category Carbon Steel Carbon Steel
C (%) 0.13-0.18 0.07-0.13
Mn (%) 1.10-1.40 0.30-0.60
Si (%) Not specified 0.10-0.40
P (%) Not specified <=0.05
S (%) Not specified <=0.05
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 BS 970 (Part 3) 045M10
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)
BS 970 (Part 3) 045M10
Bright cold finished bars (cold drawn, turned or precision ground) for general engineering purposes, in straight lengths; case hardening steel, carbon and carbon manganese (Table 14)
Key Differences
Can BS 970 (Part 1) 125A15 Be Substituted With BS 970 (Part 3) 045M10?
BS 970 (Part 1) 125A15 and BS 970 (Part 3) 045M10 are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.
On M-EX Right Now
BS 970 (Part 1) 125A15
0 active listings and RFQs →
BS 970 (Part 3) 045M10
0 active listings and RFQs →
Frequently Asked Questions
What is the difference between BS 970 (Part 1) 125A15 and BS 970 (Part 3) 045M10?
BS 970 (Part 3) 045M10 specifies Si, P, S which are not specified for BS 970 (Part 1) 125A15.
Can BS 970 (Part 1) 125A15 be substituted with BS 970 (Part 3) 045M10?
BS 970 (Part 1) 125A15 and BS 970 (Part 3) 045M10 are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.