Post Stock Login Register

BS 4659 BH11 vs GB/T 1299 4Cr5MoSiV1

Strong Match — 93.1% match based on chemical composition and mechanical property overlap.

BS 4659 BH11 (BS 4659:1989) and GB/T 1299 4Cr5MoSiV1 (GB/T 1299-2014) 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 GB/T 1299 4Cr5MoSiV1 is commonly used for die casting dies, forging dies, extrusion tools. BS 4659 BH11 is defined under British Standards (BS), originating from United Kingdom, while GB/T 1299 4Cr5MoSiV1 is defined under Guobiao Standards (GB/T), originating from China.

As per chemical composition, BS 4659 BH11 vs GB/T 1299 4Cr5MoSiV1 is a 89.6% match. As per mechanical properties, the match is 100%. Combined, this makes them a strong match overall at 93.1%.

Frequently Compared With BS 4659 BH11:
GB/T 1299 4Cr5MoSiV GOST 5950 4H5MFS1 DIN EN ISO 4957 1.2344 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 IS 1570 (Part 6) 103T3
Match Breakdown
CHEMISTRY MATCH
89.6%
MECHANICAL MATCH
100%
OVERALL
93.1%
Specifications
Property BS 4659 BH11 GB/T 1299 4Cr5MoSiV1
Standard BS 4659:1989 GB/T 1299-2014
Category Tool & Die Steels Tool & Die Steels
C (%) 0.33–0.43 0.32–0.45
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 1.20–1.75
V (%) 0.30–0.60 0.80–1.20
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 GB/T 1299 4Cr5MoSiV1
Hardness HRC (hardened) 40–54 42–54
Hardness HB (annealed) ≤235 ≤235
Typical Applications
BS 4659 BH11
Die casting dies, extrusion tooling
GB/T 1299 4Cr5MoSiV1
Die casting dies, forging dies, extrusion tools
Can BS 4659 BH11 Be Substituted With GB/T 1299 4Cr5MoSiV1?
BS 4659 BH11 and GB/T 1299 4Cr5MoSiV1 overlap closely enough on chemistry and mechanical properties that GB/T 1299 4Cr5MoSiV1 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)
GB/T 1299 4Cr5MoSiV1
Round Bar → (2 listings)
Diameter: 80–80 mm (3.15–3.15 in)
Length: 2700–4100 mm (106.3–161.42 in)
On M-EX Right Now
BS 4659 BH11
2 active listings and RFQs →
GB/T 1299 4Cr5MoSiV1
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between BS 4659 BH11 and GB/T 1299 4Cr5MoSiV1?
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 GB/T 1299 4Cr5MoSiV1?
BS 4659 BH11 and GB/T 1299 4Cr5MoSiV1 overlap closely enough on chemistry and mechanical properties that GB/T 1299 4Cr5MoSiV1 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.