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BS 4659 BD3 vs GB/T 1299 Cr12

Strong Match — 97.1% match based on chemical composition and mechanical property overlap.

BS 4659 BD3 (BS 4659:1989) and GB/T 1299 Cr12 (GB/T 1299-2014) 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 GB/T 1299 Cr12 is commonly used for cold forming dies, blanking dies. BS 4659 BD3 is defined under British Standards (BS), originating from United Kingdom, while GB/T 1299 Cr12 is defined under Guobiao Standards (GB/T), originating from China.

As per chemical composition, BS 4659 BD3 vs GB/T 1299 Cr12 is a 95.6% match. As per mechanical properties, the match is 100%. Combined, this makes them a strong match overall at 97.1%.

Frequently Compared With BS 4659 BD3:
EN ISO 4957 1.2316 GB/T 1299 4Cr5MoSiV1 DIN EN ISO 4957 1.2379 GOST 5950 4H5MFS1 GOST 5950 4H5MFS AISI 52100 EN ISO 683-17 100Cr6 GB/T 1299 3Cr2W8V GOST 5950 3H2W8F DIN EN ISO 4957 1.2344 GB/T 1299 4Cr5MoSiV IS 1570 (Part 6) 103T3
Match Breakdown
CHEMISTRY MATCH
95.6%
MECHANICAL MATCH
100%
OVERALL
97.1%
Specifications
Property BS 4659 BD3 GB/T 1299 Cr12
Standard BS 4659:1989 GB/T 1299-2014
Category Tool & Die Steels Tool & Die Steels
C (%) 2.00–2.35 2.00–2.30
Mn (%) ≤0.60 ≤0.40
Cr (%) 11.00–13.50 11.50–13.00
Si (%) ≤0.60 ≤0.40
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 GB/T 1299 Cr12
Hardness HRC (hardened) 58–64 60–64
Hardness HB (annealed) ≤255 ≤255
Typical Applications
BS 4659 BD3
Blanking dies, forming tools, gauges
GB/T 1299 Cr12
Cold forming dies, blanking dies
Can BS 4659 BD3 Be Substituted With GB/T 1299 Cr12?
BS 4659 BD3 and GB/T 1299 Cr12 overlap closely enough on chemistry and mechanical properties that GB/T 1299 Cr12 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.
Forms & Sizes Available on M-EX
BS 4659 BD3
Round Bar → (2 listings)
Diameter: 80–80 mm (3.15–3.15 in)
Length: 3100–3100 mm (122.05–122.05 in)
GB/T 1299 Cr12
Round Bar → (2 listings)
Diameter: 80–80 mm (3.15–3.15 in)
Length: 3000–3400 mm (118.11–133.86 in)
On M-EX Right Now
BS 4659 BD3
2 active listings and RFQs →
GB/T 1299 Cr12
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between BS 4659 BD3 and GB/T 1299 Cr12?
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 GB/T 1299 Cr12?
BS 4659 BD3 and GB/T 1299 Cr12 overlap closely enough on chemistry and mechanical properties that GB/T 1299 Cr12 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.