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GOST 5950 9HVG vs JIS G4404 SKS31

Related Material — 67.7% match based on chemical composition and mechanical property overlap.

GOST 5950 9HVG (GOST 5950-2000) and JIS G4404 SKS31 (JIS G4404:2006) are both steel grades. Both fall under the Tool & Die Steels category. GOST 5950 9HVG is typically used for used for broaches, taps, dies, punches, and precision cutting tools., while JIS G4404 SKS31 is commonly used for cold working molds, press dies, jigs, gauges, long taps, reamers, measuring tools requiring minimal quenching distortion.. JIS G4404 SKS31 is defined under Japanese Industrial Standards (JIS) (Japan).

As per chemical composition, GOST 5950 9HVG vs JIS G4404 SKS31 is a 77.3% match. As per mechanical properties, the match is 48.6%. Combined, this makes them a related material overall at 67.7%.

Frequently Compared With GOST 5950 9HVG:
GOST 5950 4H5MFS1 EN ISO 4957 1.2316 GOST 5950 4H5MFS GB/T 1299 4Cr5MoSiV1 GB/T 1299 3Cr2W8V DIN EN ISO 4957 1.2379 AISI 52100 GB/T 1299 4Cr5MoSiV DIN EN ISO 4957 1.2344 GOST 5950 3H2W8F EN ISO 683-17 100Cr6
Other Tool & Die Steels Grades to Compare With GOST 5950 9HVG:
IS 3748 103T3
Match Breakdown
CHEMISTRY MATCH
77.3%
MECHANICAL MATCH
48.6%
OVERALL
67.7%
Specifications
Property GOST 5950 9HVG JIS G4404 SKS31
Standard GOST 5950-2000 JIS G4404:2006
Category Tool & Die Steels Tool & Die Steels
C (%) 0.85-0.95 0.95-1.05
Cr (%) 0.9-1.2 0.80-1.20
W (%) 0.9-1.2 1.00-1.50
Mn (%) 0.8-1.1 0.90-1.20
Si (%) 0.15-0.35 <=0.35
P (%) Not specified <=0.03
S (%) Not specified <=0.03
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property GOST 5950 9HVG JIS G4404 SKS31
Tensile Strength 950-1150 MPa 900-1150 MPa
Yield Strength 750 MPa min 750 MPa min
Elongation 7% min 10% min
Hardness 61-65 HRC 58-62 HRC
Typical Applications
GOST 5950 9HVG
Used for broaches, taps, dies, punches, and precision cutting tools.
JIS G4404 SKS31
Cold working molds, press dies, jigs, gauges, long taps, reamers, measuring tools requiring minimal quenching distortion.
Key Differences
Can GOST 5950 9HVG Be Substituted With JIS G4404 SKS31?
GOST 5950 9HVG and JIS G4404 SKS31 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
GOST 5950 9HVG
Round Bar → (2 listings)
Diameter: 80–80 mm (3.15–3.15 in)
Length: 2500–3100 mm (98.43–122.05 in)
JIS G4404 SKS31
Round Bar → (2 listings)
Diameter: 80–80 mm (3.15–3.15 in)
Length: 2500–3700 mm (98.43–145.67 in)
On M-EX Right Now
GOST 5950 9HVG
2 active listings and RFQs →
JIS G4404 SKS31
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between GOST 5950 9HVG and JIS G4404 SKS31?
JIS G4404 SKS31 specifies P, S which are not specified for GOST 5950 9HVG.
Can GOST 5950 9HVG be substituted with JIS G4404 SKS31?
GOST 5950 9HVG and JIS G4404 SKS31 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.