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BS 970 EN3C vs BS 970 EN3A

Strong Match — 95.2% match based on chemical composition and mechanical property overlap.

BS 970 EN3C (BS 970:1955) and BS 970 EN3A (BS 970:1955) 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 EN3A is commonly used for bolts, screws, light structural components. BS 970 EN3C is defined under British Standards (BS), originating from United Kingdom, while BS 970 EN3A is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, BS 970 EN3C vs BS 970 EN3A is a 92.8% match. As per mechanical properties, the match is 100%. Combined, this makes them a strong match overall at 95.2%.

Frequently Compared With BS 970 EN3C:
BS 970 (Part 1) 040A10 BS 970 (Part 3) 070M55 BS 970 (Part 3) 070M20 BS 970 (Part 1) 070M20 BS 970 (Part 1) 040A04 BS 970 (Part 1) 040A12 BS 970 (Part 1) 045A10 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
Match Breakdown
CHEMISTRY MATCH
92.8%
MECHANICAL MATCH
100%
OVERALL
95.2%
Specifications
Property BS 970 EN3C BS 970 EN3A
Standard BS 970:1955 BS 970:1955
Category Carbon Steel Carbon Steel
C (%) 0.17-0.23 0.15-0.25
Si (%) 0.05-0.35 0.05-0.35
Mn (%) 0.60-1.00 0.40-0.90
S (%) <=0.050 <=0.060
P (%) <=0.050 <=0.060
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 EN3A
Tensile Strength ≥432 MPa (28 tons/sq in, converted) ≥432 MPa (28 tons/sq in, converted)
Elongation ≥25% ≥25%
Condition , ruling section 6 in (lowest-strength condition of the standard) , ruling section 6 in (lowest-strength condition of the standard)
Typical Applications
BS 970 EN3C
Welded fabrications, light structural work
BS 970 EN3A
Bolts, screws, light structural components
Can BS 970 EN3C Be Substituted With BS 970 EN3A?
BS 970 EN3C and BS 970 EN3A overlap closely enough on chemistry and mechanical properties that BS 970 EN3A is often considered as a substitute for BS 970 EN3C in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
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 EN3A
Round Bar → (5 listings)
Diameter: 40–45 mm (1.57–1.77 in)
Length: 5100–7000 mm (200.79–275.59 in)
On M-EX Right Now
BS 970 EN3C
3 active listings and RFQs →
BS 970 EN3A
5 active listings and RFQs →
Frequently Asked Questions
What is the difference between BS 970 EN3C and BS 970 EN3A?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can BS 970 EN3C be substituted with BS 970 EN3A?
BS 970 EN3C and BS 970 EN3A overlap closely enough on chemistry and mechanical properties that BS 970 EN3A is often considered as a substitute for BS 970 EN3C in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.