Post Stock Login Register

BS 970 EN3C vs BS 970 (Part 1) 040A12

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

BS 970 EN3C (BS 970:1955) and BS 970 (Part 1) 040A12 (BS 970 (Part 1):1991) are both steel grades. Both fall under the Carbon Steel category. BS 970 EN3C is typically used for welded fabrications, light structural work, while BS 970 (Part 1) 040A12 is commonly used for as-rolled, or as-rolled and softened, steel (section two). BS 970 EN3C is defined under British Standards (BS), originating from United Kingdom, while BS 970 (Part 1) 040A12 is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, BS 970 EN3C vs BS 970 (Part 1) 040A12 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 EN3C:
BS 970 (Part 1) 040A10 BS 970 (Part 3) 070M55 BS 970 (Part 1) 080A20 BS 970 (Part 3) 070M20 BS 970 (Part 1) 070M20 BS 970 (Part 1) 040A04 BS 970 (Part 1) 045A10 BS 970 (Part 3) 045A10 BS 970 (Part 1) 045M10 BS 970 (Part 1) 045M10 BS 970 (Part 3) 045M10 BS 970 (Part 1) 045A10
Match Breakdown
CHEMISTRY MATCH
80%
MECHANICAL MATCH
No shared data
OVERALL
80%
Specifications
Property BS 970 EN3C BS 970 (Part 1) 040A12
Standard BS 970:1955 BS 970 (Part 1):1991
Category Carbon Steel Carbon Steel
C (%) 0.17-0.23 0.10-0.15
Si (%) 0.05-0.35 Not specified
Mn (%) 0.60-1.00 0.30-0.50
S (%) <=0.050 Not specified
P (%) <=0.050 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 EN3C BS 970 (Part 1) 040A12
Tensile Strength ≥432 MPa (28 tons/sq in, converted) Not specified
Elongation ≥25% Not specified
Condition , ruling section 6 in (lowest-strength condition of the standard) Not specified
Typical Applications
BS 970 EN3C
Welded fabrications, light structural work
BS 970 (Part 1) 040A12
As-rolled, or as-rolled and softened, steel (section two)
Key Differences
Can BS 970 EN3C Be Substituted With BS 970 (Part 1) 040A12?
BS 970 EN3C and BS 970 (Part 1) 040A12 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 EN3C
Round Bar → (3 listings)
Diameter: 40–40 mm (1.57–1.57 in)
Length: 6200–6800 mm (244.09–267.72 in)
BS 970 (Part 1) 040A12
No active listings currently.
On M-EX Right Now
BS 970 EN3C
3 active listings and RFQs →
BS 970 (Part 1) 040A12
0 active listings and RFQs →
Frequently Asked Questions
What is the difference between BS 970 EN3C and BS 970 (Part 1) 040A12?
BS 970 EN3C specifies Si, S, P which are not specified for BS 970 (Part 1) 040A12.
Can BS 970 EN3C be substituted with BS 970 (Part 1) 040A12?
BS 970 EN3C and BS 970 (Part 1) 040A12 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.