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JIS G4404 SKD11 vs GOST 5950 4H5MFS

Minimal Match — 41.7% match based on chemical composition and mechanical property overlap.

JIS G4404 SKD11 (JIS G4404:2006) and GOST 5950 4H5MFS (GOST 5950-2000) 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 GOST 5950 4H5MFS is commonly used for used for die casting dies, forging tools, extrusion dies, punches, and hot shear blades.. JIS G4404 SKD11 is defined under Japanese Industrial Standards (JIS) (Japan).

As per chemical composition, JIS G4404 SKD11 vs GOST 5950 4H5MFS is a 62.6% match. As per mechanical properties, the match is 0%. Combined, this makes them a minimal match overall at 41.7%.

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 4H5MFS1 GOST 5950 3H2W8F DIN EN ISO 4957 1.2379 DIN EN ISO 4957 1.2344 GB/T 1299 3Cr2W8V AISI 52100 IS 1570 (Part 6) 103T3 IS 3748 103T3
Match Breakdown
CHEMISTRY MATCH
62.6%
MECHANICAL MATCH
0%
OVERALL
41.7%
Specifications
Property JIS G4404 SKD11 GOST 5950 4H5MFS
Standard JIS G4404:2006 GOST 5950-2000
Category Tool & Die Steels Tool & Die Steels
C (%) 1.40-1.60 0.35-0.45
Si (%) <=0.40 0.8-1.2
Mn (%) <=0.60 Not specified
Cr (%) 11.00-13.00 4.5-5.5
Mo (%) 0.80-1.20 1.2-1.6
V (%) 0.20-0.50 0.3-0.6
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 GOST 5950 4H5MFS
Hardness HRC (hardened) 58-62 Not specified
Hardness HB (annealed) <=255 Not specified
Tensile Strength Not specified 1350-1650 MPa
Yield Strength Not specified 1150 MPa min
Elongation Not specified 9% min
Hardness Not specified 44-50 HRC
Typical Applications
JIS G4404 SKD11
Precision blanking dies, cold forming tools, gauges
GOST 5950 4H5MFS
Used for die casting dies, forging tools, extrusion dies, punches, and hot shear blades.
Key Differences
Can JIS G4404 SKD11 Be Substituted With GOST 5950 4H5MFS?
JIS G4404 SKD11 and GOST 5950 4H5MFS share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.
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)
GOST 5950 4H5MFS
Round Bar → (2 listings)
Diameter: 80–80 mm (3.15–3.15 in)
Length: 2500–2700 mm (98.43–106.3 in)
On M-EX Right Now
JIS G4404 SKD11
3 active listings and RFQs →
GOST 5950 4H5MFS
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between JIS G4404 SKD11 and GOST 5950 4H5MFS?
JIS G4404 SKD11 specifies Mn which is not specified for GOST 5950 4H5MFS.
Can JIS G4404 SKD11 be substituted with GOST 5950 4H5MFS?
JIS G4404 SKD11 and GOST 5950 4H5MFS share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.