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BS 970 EN56CM vs BS 970 EN56DM

Strong Match — 94.4% match based on chemical composition and mechanical property overlap.

BS 970 EN56CM (BS 970:1955) and BS 970 EN56DM (BS 970:1955) are both steel grades. Both fall under the Stainless Steel category. BS 970 EN56CM is defined under British Standards (BS), originating from United Kingdom, while BS 970 EN56DM is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, BS 970 EN56CM vs BS 970 EN56DM is a 91.7% match. As per mechanical properties, the match is 100%. Combined, this makes them a strong match overall at 94.4%.

Frequently Compared With BS 970 EN56CM:
GB/T 3280 06Cr19Ni10 EN 10088-1 1.4006 EN 10088-1 1.4401 EN 10088-1 1.4845 IS 1570 (Part 7) 11Cr17Ni13W3TiH IS 1570 (Part 7) 12Cr12MoH GOST 5632 06Kh23N28 GOST 5632 08X18H10 EN 10088-1 1.4301 IS 1570 (Part 7) 12Cr12Ni2Mo IS 1570 (Part 7) 12Cr13H ASTM A959 .-
Match Breakdown
CHEMISTRY MATCH
91.7%
MECHANICAL MATCH
100%
OVERALL
94.4%
Specifications
Property BS 970 EN56CM BS 970 EN56DM
Standard BS 970:1955 BS 970:1955
Category Stainless Steel Stainless Steel
C (%) 0.18-0.25 0.25-0.35
Si (%) <=1.00 <=1.00
Mn (%) <=1.50 <=1.50
Ni (%) <=1.00 <=1.00
Cr (%) 12.0-14.0 12.0-14.0
Mo (%) <=0.60 <=0.60
S (%) <=0.75 <=0.75
Se (%) <=0.60 <=0.60
Zr (%) <=0.60 <=0.60
Pb (%) <=0.35 <=0.35
P (%) <=0.045 <=0.045
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 EN56CM BS 970 EN56DM
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 EN56CM Be Substituted With BS 970 EN56DM?
BS 970 EN56CM and BS 970 EN56DM overlap closely enough on chemistry and mechanical properties that BS 970 EN56DM is often considered as a substitute for BS 970 EN56CM 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 EN56CM
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BS 970 EN56DM
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Frequently Asked Questions
What is the difference between BS 970 EN56CM and BS 970 EN56DM?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can BS 970 EN56CM be substituted with BS 970 EN56DM?
BS 970 EN56CM and BS 970 EN56DM overlap closely enough on chemistry and mechanical properties that BS 970 EN56DM is often considered as a substitute for BS 970 EN56CM in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.