Post Stock Login Register

EN ISO 4957 X155CrVMo12-1 vs BS 4659 BD2

Strong Match — 85.8% match based on chemical composition and mechanical property overlap.

EN ISO 4957 X155CrVMo12-1 (EN ISO 4957:2018) and BS 4659 BD2 (BS 4659:1989) are both steel grades. Both fall under the Tool & Die Steels category. EN ISO 4957 X155CrVMo12-1 is typically used for blanking dies, forming dies, thread rolling dies, gauges, while BS 4659 BD2 is commonly used for blanking dies, forming dies, thread rolling dies. EN ISO 4957 X155CrVMo12-1 is defined under European Standard (EN), originating from Europe, while BS 4659 BD2 is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, EN ISO 4957 X155CrVMo12-1 vs BS 4659 BD2 is a 78.6% match. As per mechanical properties, the match is 100%. Combined, this makes them a strong match overall at 85.8%.

Frequently Compared With EN ISO 4957 X155CrVMo12-1:
DIN EN ISO 4957 1.2344 EN ISO 683-17 100Cr6 EN ISO 4957 1.2316 GOST 5950 3H2W8F GOST 5950 4H5MFS DIN EN ISO 4957 1.2379 GB/T 1299 3Cr2W8V GOST 5950 4H5MFS1 GB/T 1299 4Cr5MoSiV GB/T 1299 4Cr5MoSiV1 AISI 52100 IS 1570 (Part 6) 103T3
Match Breakdown
CHEMISTRY MATCH
78.6%
MECHANICAL MATCH
100%
OVERALL
85.8%
Specifications
Property EN ISO 4957 X155CrVMo12-1 BS 4659 BD2
Standard EN ISO 4957:2018 BS 4659:1989
Category Tool & Die Steels Tool & Die Steels
C (%) 1.55–1.65 1.40–1.60
Mn (%) 0.20–0.50 0.20–0.60
Cr (%) 11.50–12.50 11.00–13.00
Mo (%) 0.60–0.80 0.70–1.20
V (%) 0.70–1.00 0.50–1.10
Si (%) ≤0.40 Not specified
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 X155CrVMo12-1 BS 4659 BD2
Hardness HRC (hardened) 58–62 58–62
Hardness HB (annealed) ≤255 ≤255
Wear Resistance Excellent Not specified
Typical Applications
EN ISO 4957 X155CrVMo12-1
Blanking dies, forming dies, thread rolling dies, gauges
BS 4659 BD2
Blanking dies, forming dies, thread rolling dies
Key Differences
Can EN ISO 4957 X155CrVMo12-1 Be Substituted With BS 4659 BD2?
EN ISO 4957 X155CrVMo12-1 and BS 4659 BD2 overlap closely enough on chemistry and mechanical properties that BS 4659 BD2 is often considered as a substitute for EN ISO 4957 X155CrVMo12-1 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
EN ISO 4957 X155CrVMo12-1
Round Bar → (3 listings)
Diameter: 80–80 mm (3.15–3.15 in)
Length: 2500–3200 mm (98.43–125.98 in)
BS 4659 BD2
Round Bar → (2 listings)
Diameter: 80–80 mm (3.15–3.15 in)
Length: 2700–3000 mm (106.3–118.11 in)
On M-EX Right Now
EN ISO 4957 X155CrVMo12-1
3 active listings and RFQs →
BS 4659 BD2
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between EN ISO 4957 X155CrVMo12-1 and BS 4659 BD2?
EN ISO 4957 X155CrVMo12-1 specifies Si which is not specified for BS 4659 BD2.
Can EN ISO 4957 X155CrVMo12-1 be substituted with BS 4659 BD2?
EN ISO 4957 X155CrVMo12-1 and BS 4659 BD2 overlap closely enough on chemistry and mechanical properties that BS 4659 BD2 is often considered as a substitute for EN ISO 4957 X155CrVMo12-1 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.