Strong Match — 87.6% match
based on chemical composition and mechanical property overlap.
BS 970 EN3B (BS 970:1955) and BS 970 (Part 3) 070M20 (BS 970 (Part 3):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 3) 070M20 is commonly 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).
BS 970 EN3B is defined under British Standards (BS), originating from United Kingdom, while BS 970 (Part 3) 070M20 is defined under British Standards (BS), originating from United Kingdom.
As per chemical composition, BS 970 EN3B vs BS 970 (Part 3) 070M20 is a 87.6% 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 87.6%.
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 3) 070M20
Tensile Strength
≥432 MPa (28 tons/sq in, converted)
Not specified
Elongation
≥17%
Not specified
Typical Applications
BS 970 EN3B
General engineering, cold forming
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)
Can BS 970 EN3B Be Substituted With BS 970 (Part 3) 070M20?
BS 970 EN3B and BS 970 (Part 3) 070M20 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 3) 070M20 is often considered as a substitute for BS 970 EN3B in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
What is the difference between BS 970 EN3B and BS 970 (Part 3) 070M20?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can BS 970 EN3B be substituted with BS 970 (Part 3) 070M20?
BS 970 EN3B and BS 970 (Part 3) 070M20 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 3) 070M20 is often considered as a substitute for BS 970 EN3B in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.