Strong Match — 96.6% match
based on chemical composition and mechanical property overlap.
EN ISO 4957 X40CrMoV5-1 (EN ISO 4957:2018) and BS 4659 BH13 (BS 4659:1989) are both steel grades.
Both fall under the Tool & Die Steels category.
EN ISO 4957 X40CrMoV5-1 is typically used for die casting dies, extrusion dies, forging dies, hot shear blades, while BS 4659 BH13 is commonly used for die casting dies, forging tools, extrusion dies.
EN ISO 4957 X40CrMoV5-1 is defined under European Standard (EN), originating from Europe, while BS 4659 BH13 is defined under British Standards (BS), originating from United Kingdom.
As per chemical composition, EN ISO 4957 X40CrMoV5-1 vs BS 4659 BH13 is a 95% match.
As per mechanical properties, the match is 100%.
Combined, this makes them a strong match overall at 96.6%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
EN ISO 4957 X40CrMoV5-1
BS 4659 BH13
Hardness HRC (hardened)
42–54
42–54
Hardness HB (annealed)
≤235
≤235
Hot Strength
Excellent to 600°C
Not specified
Typical Applications
EN ISO 4957 X40CrMoV5-1
Die casting dies, extrusion dies, forging dies, hot shear blades
BS 4659 BH13
Die casting dies, forging tools, extrusion dies
Can EN ISO 4957 X40CrMoV5-1 Be Substituted With BS 4659 BH13?
EN ISO 4957 X40CrMoV5-1 and BS 4659 BH13 overlap closely enough on chemistry and mechanical properties that BS 4659 BH13 is often considered as a substitute for EN ISO 4957 X40CrMoV5-1 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 EN ISO 4957 X40CrMoV5-1 and BS 4659 BH13?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can EN ISO 4957 X40CrMoV5-1 be substituted with BS 4659 BH13?
EN ISO 4957 X40CrMoV5-1 and BS 4659 BH13 overlap closely enough on chemistry and mechanical properties that BS 4659 BH13 is often considered as a substitute for EN ISO 4957 X40CrMoV5-1 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.