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BS 4659 BH11 vs EN ISO 4957 X38CrMoV5-1

Strong Match — 100% match based on chemical composition and mechanical property overlap.

BS 4659 BH11 (BS 4659:1989) and EN ISO 4957 X38CrMoV5-1 (EN ISO 4957:2018) are both steel grades. Both fall under the Tool & Die Steels category. BS 4659 BH11 is typically used for die casting dies, extrusion tooling, while EN ISO 4957 X38CrMoV5-1 is commonly used for die casting dies, extrusion tooling, forging dies. BS 4659 BH11 is defined under British Standards (BS), originating from United Kingdom, while EN ISO 4957 X38CrMoV5-1 is defined under European Standard (EN), originating from Europe.

As per chemical composition, BS 4659 BH11 vs EN ISO 4957 X38CrMoV5-1 is a 100% match. As per mechanical properties, the match is 100%. Combined, this makes them a strong match overall at 100%.

Frequently Compared With BS 4659 BH11:
GB/T 1299 4Cr5MoSiV GOST 5950 4H5MFS1 DIN EN ISO 4957 1.2344 GB/T 1299 4Cr5MoSiV1 GOST 5950 4H5MFS EN ISO 4957 1.2316 DIN EN ISO 4957 1.2379 GOST 5950 3H2W8F GB/T 1299 3Cr2W8V AISI 52100 EN ISO 683-17 100Cr6 IS 1570 (Part 6) 118T3
Match Breakdown
CHEMISTRY MATCH
100%
MECHANICAL MATCH
100%
OVERALL
100%
Specifications
Property BS 4659 BH11 EN ISO 4957 X38CrMoV5-1
Standard BS 4659:1989 EN ISO 4957:2018
Category Tool & Die Steels Tool & Die Steels
C (%) 0.33–0.43 0.33–0.43
Si (%) 0.80–1.20 0.80–1.20
Mn (%) 0.20–0.50 0.20–0.50
Cr (%) 4.75–5.50 4.75–5.50
Mo (%) 1.10–1.60 1.10–1.60
V (%) 0.30–0.60 0.30–0.60
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 BH11 EN ISO 4957 X38CrMoV5-1
Hardness HRC (hardened) 40–54 40–54
Hardness HB (annealed) ≤235 ≤235
Hot Strength Not specified Excellent to 600°C
Typical Applications
BS 4659 BH11
Die casting dies, extrusion tooling
EN ISO 4957 X38CrMoV5-1
Die casting dies, extrusion tooling, forging dies
Can BS 4659 BH11 Be Substituted With EN ISO 4957 X38CrMoV5-1?
BS 4659 BH11 and EN ISO 4957 X38CrMoV5-1 overlap closely enough on chemistry and mechanical properties that EN ISO 4957 X38CrMoV5-1 is often considered as a substitute for BS 4659 BH11 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
Forms & Sizes Available on M-EX
BS 4659 BH11
Round Bar → (2 listings)
Diameter: 80–80 mm (3.15–3.15 in)
Length: 3500–3500 mm (137.8–137.8 in)
EN ISO 4957 X38CrMoV5-1
Round Bar → (2 listings)
Diameter: 80–80 mm (3.15–3.15 in)
Length: 2500–3500 mm (98.43–137.8 in)
On M-EX Right Now
BS 4659 BH11
2 active listings and RFQs →
EN ISO 4957 X38CrMoV5-1
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between BS 4659 BH11 and EN ISO 4957 X38CrMoV5-1?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can BS 4659 BH11 be substituted with EN ISO 4957 X38CrMoV5-1?
BS 4659 BH11 and EN ISO 4957 X38CrMoV5-1 overlap closely enough on chemistry and mechanical properties that EN ISO 4957 X38CrMoV5-1 is often considered as a substitute for BS 4659 BH11 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.