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JIS G4404 SKD6 vs JIS G4404 SKD61

Strong Match — 96.4% match based on chemical composition and mechanical property overlap.

JIS G4404 SKD6 (JIS G4404:2006) and JIS G4404 SKD61 (JIS G4404:2006) are both steel grades. Both fall under the Tool & Die Steels category. JIS G4404 SKD6 is typically used for die casting dies, hot forging tools, while JIS G4404 SKD61 is commonly used for die casting dies, extrusion tooling, forging tools. JIS G4404 SKD6 is defined under Japanese Industrial Standards (JIS), originating from Japan, while JIS G4404 SKD61 is defined under Japanese Industrial Standards (JIS), originating from Japan.

As per chemical composition, JIS G4404 SKD6 vs JIS G4404 SKD61 is a 94.6% match. As per mechanical properties, the match is 100%. Combined, this makes them a strong match overall at 96.4%.

Frequently Compared With JIS G4404 SKD6:
GOST 5950 4H5MFS1 GOST 5950 4H5MFS EN ISO 683-17 100Cr6 AISI 52100 GB/T 1299 4Cr5MoSiV EN ISO 4957 1.2316 GOST 5950 3H2W8F GB/T 1299 3Cr2W8V DIN EN ISO 4957 1.2344 DIN EN ISO 4957 1.2379 GB/T 1299 4Cr5MoSiV1 IS 1570 (Part 6) 103T3
Match Breakdown
CHEMISTRY MATCH
94.6%
MECHANICAL MATCH
100%
OVERALL
96.4%
Specifications
Property JIS G4404 SKD6 JIS G4404 SKD61
Standard JIS G4404:2006 JIS G4404:2006
Category Tool & Die Steels Tool & Die Steels
C (%) 0.32-0.42 0.32-0.42
Si (%) 0.80-1.20 0.80-1.20
Mn (%) 0.25-0.50 0.25-0.50
Cr (%) 4.50-5.50 4.50-5.50
Mo (%) 1.00-1.50 1.00-1.50
V (%) 0.30-0.50 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 JIS G4404 SKD6 JIS G4404 SKD61
Hardness HRC (hardened) 40-52 44-54
Hardness HB (annealed) <=229 <=229
Typical Applications
JIS G4404 SKD6
Die casting dies, hot forging tools
JIS G4404 SKD61
Die casting dies, extrusion tooling, forging tools
Can JIS G4404 SKD6 Be Substituted With JIS G4404 SKD61?
JIS G4404 SKD6 and JIS G4404 SKD61 overlap closely enough on chemistry and mechanical properties that JIS G4404 SKD61 is often considered as a substitute for JIS G4404 SKD6 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 SKD6
Round Bar → (2 listings)
Diameter: 80–80 mm (3.15–3.15 in)
Length: 2500–3900 mm (98.43–153.54 in)
JIS G4404 SKD61
Round Bar → (3 listings)
Diameter: 80–80 mm (3.15–3.15 in)
Length: 2500–4200 mm (98.43–165.35 in)
On M-EX Right Now
JIS G4404 SKD6
2 active listings and RFQs →
JIS G4404 SKD61
3 active listings and RFQs →
Frequently Asked Questions
What is the difference between JIS G4404 SKD6 and JIS G4404 SKD61?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can JIS G4404 SKD6 be substituted with JIS G4404 SKD61?
JIS G4404 SKD6 and JIS G4404 SKD61 overlap closely enough on chemistry and mechanical properties that JIS G4404 SKD61 is often considered as a substitute for JIS G4404 SKD6 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.