Strong Match — 94.4% match
based on chemical composition and mechanical property overlap.
BS 970 EN56BM (BS 970:1955) and BS 970 EN56AM (BS 970:1955) are both steel grades.
Both fall under the Stainless Steel category.
BS 970 EN56BM is defined under British Standards (BS), originating from United Kingdom, while BS 970 EN56AM is defined under British Standards (BS), originating from United Kingdom.
As per chemical composition, BS 970 EN56BM vs BS 970 EN56AM is a 91.7% match.
As per mechanical properties, the match is 100%.
Combined, this makes them a strong match overall at 94.4%.
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 EN56BM
BS 970 EN56AM
Tensile Strength
≥541 MPa (35 tons/sq in, converted)
≥541 MPa (35 tons/sq in, converted)
Elongation
≥20%
≥20%
Hardness
152-207 HB
152-207 HB
Condition
Hardened and tempered P, ruling section 6 in (lowest-strength condition of the standard)
Hardened and tempered P, ruling section 6 in (lowest-strength condition of the standard)
Typical Applications
BS 970 EN56BM
Not documented
BS 970 EN56AM
Suitable for 35/45 (P), 45/55 (R), 50/60 (S) tons/sq in.
Can BS 970 EN56BM Be Substituted With BS 970 EN56AM?
BS 970 EN56BM and BS 970 EN56AM overlap closely enough on chemistry and mechanical properties that BS 970 EN56AM is often considered as a substitute for BS 970 EN56BM 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 EN56BM and BS 970 EN56AM?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can BS 970 EN56BM be substituted with BS 970 EN56AM?
BS 970 EN56BM and BS 970 EN56AM overlap closely enough on chemistry and mechanical properties that BS 970 EN56AM is often considered as a substitute for BS 970 EN56BM in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.