BS 970 EN2A vs BS 970 (Part 3) 045M10

Strong Match — 85.2% match based on chemical composition and mechanical property overlap.

BS 970 EN2A (BS 970:1955) and BS 970 (Part 3) 045M10 (BS 970 (Part 3):1991) are both steel grades. Both fall under the Carbon Steel category. BS 970 EN2A is typically used for bars and billets for forging; forgings and drop-forgings; bars for machining, 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 EN2A 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 EN2A vs BS 970 (Part 3) 045M10 is a 85.2% 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 85.2%.

Frequently Compared With BS 970 EN2A:
BS 970 (Part 1) 045A10 BS 970 (Part 3) 045A10 BS 970 (Part 1) 045M10 BS 970 (Part 1) 055M15 BS 970 (Part 1) 060A45 BS 970 (Part 1) 040A10 BS 970 (Part 1) 040A12 BS 970 (Part 1) 045A10 BS 970 (Part 1) 045M10 BS 970 (Part 1) 040A04 BS 970 (Part 1) 060A32 BS 970 (Part 1) 060A40
Match Breakdown
CHEMISTRY MATCH
85.2%
MECHANICAL MATCH
No shared data
OVERALL
85.2%
Specifications
Property BS 970 EN2A BS 970 (Part 3) 045M10
Standard BS 970:1955 BS 970 (Part 3):1991
Category Carbon Steel Carbon Steel
C (%) <=0.12 0.07-0.13
Mn (%) <=0.50 0.30-0.60
S (%) <=0.050 <=0.05
P (%) <=0.050 <=0.05
Si (%) Not specified 0.10-0.40
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Typical Applications
BS 970 EN2A
Bars and billets for forging; forgings and drop-forgings; bars for machining
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 EN2A Be Substituted With BS 970 (Part 3) 045M10?
BS 970 EN2A and BS 970 (Part 3) 045M10 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 3) 045M10 is often considered as a substitute for BS 970 EN2A 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 EN2A
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BS 970 (Part 3) 045M10
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Frequently Asked Questions
What is the difference between BS 970 EN2A and BS 970 (Part 3) 045M10?
BS 970 (Part 3) 045M10 specifies Si which is not specified for BS 970 EN2A.
Can BS 970 EN2A be substituted with BS 970 (Part 3) 045M10?
BS 970 EN2A and BS 970 (Part 3) 045M10 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 3) 045M10 is often considered as a substitute for BS 970 EN2A in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.