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BS 970 EN3B vs BS 970 (Part 1) 045A10

Related Material — 55.5% match based on chemical composition and mechanical property overlap.

BS 970 EN3B (BS 970:1955) and BS 970 (Part 1) 045A10 (BS 970 (Part 1):1991) are both steel grades. Both fall under the Carbon Steel category. BS 970 EN3B is typically used for general engineering, cold forming, while BS 970 (Part 1) 045A10 is commonly used for case hardening steel (section four). BS 970 EN3B 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 EN3B vs BS 970 (Part 1) 045A10 is a 83.3% match. As per mechanical properties, the match is 0%. Combined, this makes them a related material overall at 55.5%.

Frequently Compared With BS 970 EN3B:
BS 970 (Part 1) 080A20 BS 970 (Part 1) 040A10 BS 970 (Part 3) 070M55 BS 970 (Part 1) 040A04 BS 970 (Part 3) 045A10 BS 970 (Part 1) 070M20 BS 970 (Part 1) 045M10 BS 970 (Part 1) 055M15 BS 970 (Part 1) 040A12 BS 970 (Part 1) 045A10 BS 970 (Part 1) 045M10 BS 970 (Part 3) 045M10
Match Breakdown
CHEMISTRY MATCH
83.3%
MECHANICAL MATCH
0%
OVERALL
55.5%
Specifications
Property BS 970 EN3B BS 970 (Part 1) 045A10
Standard BS 970:1955 BS 970 (Part 1):1991
Category Carbon Steel Carbon Steel
C (%) <=0.25 0.08-0.13
Si (%) <=0.35 Not specified
Mn (%) <=1.00 0.30-0.60
S (%) <=0.060 Not specified
P (%) <=0.060 Not specified
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 EN3B BS 970 (Part 1) 045A10
Tensile Strength ≥432 MPa (28 tons/sq in, converted) 430 MPa min
Elongation ≥17% 18 % min
Condition Not specified Case hardened, 19 mm test bar
Typical Applications
BS 970 EN3B
General engineering, cold forming
BS 970 (Part 1) 045A10
Case hardening steel (section four)
Key Differences
Can BS 970 EN3B Be Substituted With BS 970 (Part 1) 045A10?
BS 970 EN3B 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.
Forms & Sizes Available on M-EX
BS 970 EN3B
Round Bar → (3 listings)
Diameter: 50–50 mm (1.97–1.97 in)
Length: 4600–5000 mm (181.1–196.85 in)
BS 970 (Part 1) 045A10
No active listings currently.
On M-EX Right Now
BS 970 EN3B
3 active listings and RFQs →
BS 970 (Part 1) 045A10
0 active listings and RFQs →
Frequently Asked Questions
What is the difference between BS 970 EN3B and BS 970 (Part 1) 045A10?
BS 970 EN3B specifies Si, S, P which are not specified for BS 970 (Part 1) 045A10.
Can BS 970 EN3B be substituted with BS 970 (Part 1) 045A10?
BS 970 EN3B 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.