Close Alternative — 84.9% match
based on chemical composition and mechanical property overlap.
BS 970 EN56DM (BS 970:1955) and BS 970 EN56BM (BS 970:1955) are both steel grades.
Both fall under the Stainless Steel category.
BS 970 EN56DM is defined under British Standards (BS), originating from United Kingdom, while BS 970 EN56BM is defined under British Standards (BS), originating from United Kingdom.
As per chemical composition, BS 970 EN56DM vs BS 970 EN56BM is a 91.7% match.
As per mechanical properties, the match is 100%.
Combined, this makes them a close alternative overall at 84.9%.
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 EN56DM
BS 970 EN56BM
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)
Can BS 970 EN56DM Be Substituted With BS 970 EN56BM?
BS 970 EN56DM and BS 970 EN56BM 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.
What is the difference between BS 970 EN56DM and BS 970 EN56BM?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can BS 970 EN56DM be substituted with BS 970 EN56BM?
BS 970 EN56DM and BS 970 EN56BM 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.