Strong Match — 98.9% match
based on chemical composition and mechanical property overlap.
BS 4659 BD3 (BS 4659:1989) and EN ISO 4957 X210Cr12 (EN ISO 4957:2018) are both steel grades.
Both fall under the Tool & Die Steels category.
BS 4659 BD3 is typically used for blanking dies, forming tools, gauges, while EN ISO 4957 X210Cr12 is commonly used for blanking dies, thread rolling dies, gauges.
BS 4659 BD3 is defined under British Standards (BS), originating from United Kingdom, while EN ISO 4957 X210Cr12 is defined under European Standard (EN), originating from Europe.
As per chemical composition, BS 4659 BD3 vs EN ISO 4957 X210Cr12 is a 98.4% match.
As per mechanical properties, the match is 100%.
Combined, this makes them a strong match overall at 98.9%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
BS 4659 BD3
EN ISO 4957 X210Cr12
Hardness HRC (hardened)
58–64
58–64
Hardness HB (annealed)
≤255
≤255
Typical Applications
BS 4659 BD3
Blanking dies, forming tools, gauges
EN ISO 4957 X210Cr12
Blanking dies, thread rolling dies, gauges
Can BS 4659 BD3 Be Substituted With EN ISO 4957 X210Cr12?
BS 4659 BD3 and EN ISO 4957 X210Cr12 overlap closely enough on chemistry and mechanical properties that EN ISO 4957 X210Cr12 is often considered as a substitute for BS 4659 BD3 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 4659 BD3 and EN ISO 4957 X210Cr12?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can BS 4659 BD3 be substituted with EN ISO 4957 X210Cr12?
BS 4659 BD3 and EN ISO 4957 X210Cr12 overlap closely enough on chemistry and mechanical properties that EN ISO 4957 X210Cr12 is often considered as a substitute for BS 4659 BD3 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.