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BS 970 EN2 vs BS 970 (Part 3) 045M10

Close Alternative — 83.8% match based on chemical composition and mechanical property overlap.

BS 970 EN2 (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 EN2 is typically used for lightly stressed components, case hardened parts, 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 EN2 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 EN2 vs BS 970 (Part 3) 045M10 is a 83.8% 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 83.8%.

Frequently Compared With BS 970 EN2:
BS 970 (Part 1) 080A20 BS 970 (Part 1) 040A10 BS 970 (Part 3) 070M55 BS 970 (Part 1) 045M10 BS 970 (Part 1) 040A04 BS 970 (Part 1) 045A10 BS 970 (Part 3) 045A10 BS 970 (Part 1) 040A12 BS 970 (Part 1) 045A10 BS 970 (Part 1) 045M10 BS 970 (Part 1) 055M15 BS 970 (Part 1) 060A32
Match Breakdown
CHEMISTRY MATCH
83.8%
MECHANICAL MATCH
No shared data
OVERALL
83.8%
Specifications
Property BS 970 EN2 BS 970 (Part 3) 045M10
Standard BS 970:1955 BS 970 (Part 3):1991
Category Carbon Steel Carbon Steel
C (%) <=0.20 0.07-0.13
Mn (%) <=0.80 0.30-0.60
S (%) <=0.060 <=0.05
P (%) <=0.060 <=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.
Mechanical Properties
Property BS 970 EN2 BS 970 (Part 3) 045M10
Tensile Strength ≥309 MPa (20 tons/sq in, converted) Not specified
Elongation ≥28% Not specified
Condition , ruling section 6 in (lowest-strength condition of the standard) Not specified
Typical Applications
BS 970 EN2
Lightly stressed components, case hardened parts
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 EN2 Be Substituted With BS 970 (Part 3) 045M10?
BS 970 EN2 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.
Forms & Sizes Available on M-EX
BS 970 EN2
Round Bar → (3 listings)
Diameter: 40–40 mm (1.57–1.57 in)
Length: 4300–7000 mm (169.29–275.59 in)
BS 970 (Part 3) 045M10
No active listings currently.
On M-EX Right Now
BS 970 EN2
3 active listings and RFQs →
BS 970 (Part 3) 045M10
0 active listings and RFQs →
Frequently Asked Questions
What is the difference between BS 970 EN2 and BS 970 (Part 3) 045M10?
BS 970 (Part 3) 045M10 specifies Si which is not specified for BS 970 EN2.
Can BS 970 EN2 be substituted with BS 970 (Part 3) 045M10?
BS 970 EN2 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.