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BS 970 EN8DM vs BS 970 EN8BM

Strong Match — 94.3% match based on chemical composition and mechanical property overlap.

BS 970 EN8DM (BS 970:1955) and BS 970 EN8BM (BS 970:1955) are both steel grades. Both fall under the Carbon Steel category. BS 970 EN8DM is defined under British Standards (BS), originating from United Kingdom, while BS 970 EN8BM is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, BS 970 EN8DM vs BS 970 EN8BM is a 91.4% match. As per mechanical properties, the match is 100%. Combined, this makes them a strong match overall at 94.3%.

Frequently Compared With BS 970 EN8DM:
BS 970 (Part 1) 040A04 BS 970 (Part 1) 060A32 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 BS 970 (Part 1) 060A40 BS 970 (Part 1) 060A45 BS 970 (Part 1) 040A10 BS 970 (Part 1) 040A12
Match Breakdown
CHEMISTRY MATCH
91.4%
MECHANICAL MATCH
100%
OVERALL
94.3%
Specifications
Property BS 970 EN8DM BS 970 EN8BM
Standard BS 970:1955 BS 970:1955
Category Carbon Steel Carbon Steel
C (%) 0.40-0.45 0.35-0.40
Si (%) <=0.25 <=0.25
Mn (%) 0.90-1.30 0.90-1.30
S (%) 0.12-0.20 0.12-0.20
P (%) <=0.060 <=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 EN8DM BS 970 EN8BM
Tensile Strength ≥541 MPa (35 tons/sq in, converted) ≥541 MPa (35 tons/sq in, converted)
Yield Strength ≥278 MPa (18 tons/sq in, converted) ≥278 MPa (18 tons/sq in, converted)
Elongation ≥20% ≥20%
Hardness 152-207 HB 152-207 HB
Condition Normalised, ruling section 6 in (lowest-strength condition of the standard) Normalised, ruling section 6 in (lowest-strength condition of the standard)
Can BS 970 EN8DM Be Substituted With BS 970 EN8BM?
BS 970 EN8DM and BS 970 EN8BM overlap closely enough on chemistry and mechanical properties that BS 970 EN8BM is often considered as a substitute for BS 970 EN8DM in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
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BS 970 EN8DM
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Frequently Asked Questions
What is the difference between BS 970 EN8DM and BS 970 EN8BM?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can BS 970 EN8DM be substituted with BS 970 EN8BM?
BS 970 EN8DM and BS 970 EN8BM overlap closely enough on chemistry and mechanical properties that BS 970 EN8BM is often considered as a substitute for BS 970 EN8DM in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.