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BS 970 (Part 1) 125A15 vs BS 970 (Part 1) 045A10

Related Material — 57.1% match based on chemical composition and mechanical property overlap.

BS 970 (Part 1) 125A15 (BS 970 (Part 1):1991) and BS 970 (Part 1) 045A10 (BS 970 (Part 1):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 1) 045A10 is commonly used for case hardening steel (section four). BS 970 (Part 1) 125A15 is defined under British Standards (BS), originating from United Kingdom, while BS 970 (Part 1) 045A10 is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, BS 970 (Part 1) 125A15 vs BS 970 (Part 1) 045A10 is a 85.7% match. As per mechanical properties, the match is 0%. Combined, this makes them a related material overall at 57.1%.

Frequently Compared With BS 970 (Part 1) 125A15:
BS 970 (Part 1) 080A15 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) 040A04 BS 970 (Part 3) 045A10 BS 970 (Part 3) 045M10 BS 970 (Part 1) 055M15 BS 970 (Part 1) 060A62 BS 970 (Part 1) 060A78
Match Breakdown
CHEMISTRY MATCH
85.7%
MECHANICAL MATCH
0%
OVERALL
57.1%
Specifications
Property BS 970 (Part 1) 125A15 BS 970 (Part 1) 045A10
Standard BS 970 (Part 1):1991 BS 970 (Part 1):1991
Category Carbon Steel Carbon Steel
C (%) 0.13-0.18 0.08-0.13
Mn (%) 1.10-1.40 0.30-0.60
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 1) 045A10
Condition Case hardened, 19 mm test bar Case hardened, 19 mm test bar
Tensile Strength 650 MPa min 430 MPa min
Elongation 14 % min 18 % min
Typical Applications
BS 970 (Part 1) 125A15
Case hardening steel (section four)
BS 970 (Part 1) 045A10
Case hardening steel (section four)
Can BS 970 (Part 1) 125A15 Be Substituted With BS 970 (Part 1) 045A10?
BS 970 (Part 1) 125A15 and BS 970 (Part 1) 045A10 share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.
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BS 970 (Part 1) 125A15
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BS 970 (Part 1) 045A10
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Frequently Asked Questions
What is the difference between BS 970 (Part 1) 125A15 and BS 970 (Part 1) 045A10?
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 BS 970 (Part 1) 045A10?
BS 970 (Part 1) 125A15 and BS 970 (Part 1) 045A10 share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.