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BS 970 (Part 3) 070M20 vs BS 970 EN3A

Strong Match — 94.6% match based on chemical composition and mechanical property overlap.

BS 970 (Part 3) 070M20 (BS 970 (Part 3):1991) and BS 970 EN3A (BS 970:1955) are both steel grades. Both fall under the Carbon Steel category. BS 970 (Part 3) 070M20 is typically used for bright cold finished bars (cold drawn, turned or precision ground) for general engineering purposes, in straight lengths; carbon and carbon manganese steel (table 13), while BS 970 EN3A is commonly used for bolts, screws, light structural components. BS 970 (Part 3) 070M20 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 (Part 3) 070M20 vs BS 970 EN3A is a 94.6% 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 94.6%.

Frequently Compared With BS 970 (Part 3) 070M20:
BS 970 (Part 1) 060A67 BS 970 (Part 1) 060A62 BS 970 (Part 1) 070M20 BS 970 (Part 1) 040A12 BS 970 (Part 1) 045M10 BS 970 (Part 3) 045M10 BS 970 (Part 1) 045A10 BS 970 (Part 1) 055M15 BS 970 (Part 1) 040A04 BS 970 (Part 3) 045A10 BS 970 (Part 1) 060A72 BS 970 (Part 1) 045A10
Match Breakdown
CHEMISTRY MATCH
94.6%
MECHANICAL MATCH
No shared data
OVERALL
94.6%
Specifications
Property BS 970 (Part 3) 070M20 BS 970 EN3A
Standard BS 970 (Part 3):1991 BS 970:1955
Category Carbon Steel Carbon Steel
C (%) 0.16-0.24 0.15-0.25
Si (%) 0.10-0.40 0.05-0.35
Mn (%) 0.50-0.90 0.40-0.90
P (%) <=0.05 <=0.060
S (%) <=0.05 <=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 (Part 3) 070M20 BS 970 EN3A
Tensile Strength Not specified ≥432 MPa (28 tons/sq in, converted)
Elongation Not specified ≥25%
Condition Not specified , ruling section 6 in (lowest-strength condition of the standard)
Typical Applications
BS 970 (Part 3) 070M20
Bright cold finished bars (cold drawn, turned or precision ground) for general engineering purposes, in straight lengths; carbon and carbon manganese steel (Table 13)
BS 970 EN3A
Bolts, screws, light structural components
Can BS 970 (Part 3) 070M20 Be Substituted With BS 970 EN3A?
BS 970 (Part 3) 070M20 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 (Part 3) 070M20 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 (Part 3) 070M20
No active listings currently.
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 (Part 3) 070M20
0 active listings and RFQs →
BS 970 EN3A
5 active listings and RFQs →
Frequently Asked Questions
What is the difference between BS 970 (Part 3) 070M20 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 (Part 3) 070M20 be substituted with BS 970 EN3A?
BS 970 (Part 3) 070M20 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 (Part 3) 070M20 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.