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JIS G4404 SKD11 vs BS 4659 BD2

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

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

As per chemical composition, JIS G4404 SKD11 vs BS 4659 BD2 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 JIS G4404 SKD11:
EN ISO 683-17 100Cr6 GB/T 1299 4Cr5MoSiV1 GB/T 1299 4Cr5MoSiV EN ISO 4957 1.2316 GOST 5950 3H2W8F GOST 5950 4H5MFS1 DIN EN ISO 4957 1.2379 GB/T 1299 3Cr2W8V DIN EN ISO 4957 1.2344 GOST 5950 4H5MFS AISI 52100 IS 1570 (Part 6) 103T3
Match Breakdown
CHEMISTRY MATCH
86.4%
MECHANICAL MATCH
100%
OVERALL
91%
Specifications
Property JIS G4404 SKD11 BS 4659 BD2
Standard JIS G4404:2006 BS 4659:1989
Category Tool & Die Steels Tool & Die Steels
C (%) 1.40-1.60 1.40–1.60
Si (%) <=0.40 Not specified
Mn (%) <=0.60 0.20–0.60
Cr (%) 11.00-13.00 11.00–13.00
Mo (%) 0.80-1.20 0.70–1.20
V (%) 0.20-0.50 0.50–1.10
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property JIS G4404 SKD11 BS 4659 BD2
Hardness HRC (hardened) 58-62 58–62
Hardness HB (annealed) <=255 ≤255
Typical Applications
JIS G4404 SKD11
Precision blanking dies, cold forming tools, gauges
BS 4659 BD2
Blanking dies, forming dies, thread rolling dies
Key Differences
Can JIS G4404 SKD11 Be Substituted With BS 4659 BD2?
JIS G4404 SKD11 and BS 4659 BD2 overlap closely enough on chemistry and mechanical properties that BS 4659 BD2 is often considered as a substitute for JIS G4404 SKD11 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
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)
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
JIS G4404 SKD11
3 active listings and RFQs →
BS 4659 BD2
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between JIS G4404 SKD11 and BS 4659 BD2?
JIS G4404 SKD11 specifies Si which is not specified for BS 4659 BD2.
Can JIS G4404 SKD11 be substituted with BS 4659 BD2?
JIS G4404 SKD11 and BS 4659 BD2 overlap closely enough on chemistry and mechanical properties that BS 4659 BD2 is often considered as a substitute for JIS G4404 SKD11 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.