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BS 4659 BD2 vs JIS G4404 SKD11

Strong Match — 91% match based on chemical composition and mechanical property overlap.

BS 4659 BD2 (BS 4659:1989) and JIS G4404 SKD11 (JIS G4404:2006) are both steel grades. Both fall under the Tool & Die Steels category. BS 4659 BD2 is typically used for blanking dies, forming dies, thread rolling dies, while JIS G4404 SKD11 is commonly used for precision blanking dies, cold forming tools, gauges. BS 4659 BD2 is defined under British Standards (BS), originating from United Kingdom, while JIS G4404 SKD11 is defined under Japanese Industrial Standards (JIS), originating from Japan.

As per chemical composition, BS 4659 BD2 vs JIS G4404 SKD11 is a 86.4% match. As per mechanical properties, the match is 100%. Combined, this makes them a strong match overall at 91%.

Frequently Compared With BS 4659 BD2:
GB/T 1299 3Cr2W8V EN ISO 4957 1.2316 GB/T 1299 4Cr5MoSiV DIN EN ISO 4957 1.2379 AISI 52100 GB/T 1299 4Cr5MoSiV1 GOST 5950 4H5MFS EN ISO 683-17 100Cr6 DIN EN ISO 4957 1.2344 GOST 5950 3H2W8F IS 1570 (Part 6) 133T3 IS 1570 (Part 6) 103T3
Match Breakdown
CHEMISTRY MATCH
86.4%
MECHANICAL MATCH
100%
OVERALL
91%
Specifications
Property BS 4659 BD2 JIS G4404 SKD11
Standard BS 4659:1989 JIS G4404:2006
Category Tool & Die Steels Tool & Die Steels
C (%) 1.40–1.60 1.40-1.60
Mn (%) 0.20–0.60 <=0.60
Cr (%) 11.00–13.00 11.00-13.00
Mo (%) 0.70–1.20 0.80-1.20
V (%) 0.50–1.10 0.20-0.50
Si (%) Not specified <=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 BD2 JIS G4404 SKD11
Hardness HRC (hardened) 58–62 58-62
Hardness HB (annealed) ≤255 <=255
Typical Applications
BS 4659 BD2
Blanking dies, forming dies, thread rolling dies
JIS G4404 SKD11
Precision blanking dies, cold forming tools, gauges
Key Differences
Can BS 4659 BD2 Be Substituted With JIS G4404 SKD11?
BS 4659 BD2 and JIS G4404 SKD11 overlap closely enough on chemistry and mechanical properties that JIS G4404 SKD11 is often considered as a substitute for BS 4659 BD2 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 BD2
Round Bar → (2 listings)
Diameter: 80–80 mm (3.15–3.15 in)
Length: 2700–3000 mm (106.3–118.11 in)
JIS G4404 SKD11
Round Bar → (3 listings)
Diameter: 80–80 mm (3.15–3.15 in)
Length: 2500–3000 mm (98.43–118.11 in)
On M-EX Right Now
BS 4659 BD2
2 active listings and RFQs →
JIS G4404 SKD11
3 active listings and RFQs →
Frequently Asked Questions
What is the difference between BS 4659 BD2 and JIS G4404 SKD11?
JIS G4404 SKD11 specifies Si which is not specified for BS 4659 BD2.
Can BS 4659 BD2 be substituted with JIS G4404 SKD11?
BS 4659 BD2 and JIS G4404 SKD11 overlap closely enough on chemistry and mechanical properties that JIS G4404 SKD11 is often considered as a substitute for BS 4659 BD2 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.