Post Stock Login Register

JIS G4404 SKS31 vs GB/T 1299 3Cr2W8V

Minimal Match — 41% match based on chemical composition and mechanical property overlap.

JIS G4404 SKS31 (JIS G4404:2006) and GB/T 1299 3Cr2W8V (GB/T 1299-2014) are both steel grades. Both fall under the Tool & Die Steels category. JIS G4404 SKS31 is typically used for cold working molds, press dies, jigs, gauges, long taps, reamers, measuring tools requiring minimal quenching distortion., while GB/T 1299 3Cr2W8V is commonly used for used for hot forging dies, extrusion dies, die-casting molds, hot punches, and hot shear blades.. JIS G4404 SKS31 is defined under Japanese Industrial Standards (JIS), originating from Japan, while GB/T 1299 3Cr2W8V is defined under Guobiao Standards (GB/T), originating from China.

As per chemical composition, JIS G4404 SKS31 vs GB/T 1299 3Cr2W8V is a 61.5% match. As per mechanical properties, the match is 0%. Combined, this makes them a minimal match overall at 41%.

Frequently Compared With JIS G4404 SKS31:
EN ISO 4957 1.2316 DIN EN ISO 4957 1.2344 DIN EN ISO 4957 1.2379 GB/T 1299 4Cr5MoSiV EN ISO 683-17 100Cr6 AISI 52100 GB/T 1299 4Cr5MoSiV1 GOST 5950 4H5MFS1 GOST 5950 3H2W8F GOST 5950 4H5MFS IS 3748 103T3
Other Tool & Die Steels Grades to Compare With JIS G4404 SKS31:
IS 1570 (Part 6) 103T3
Match Breakdown
CHEMISTRY MATCH
61.5%
MECHANICAL MATCH
0%
OVERALL
41%
Specifications
Property JIS G4404 SKS31 GB/T 1299 3Cr2W8V
Standard JIS G4404:2006 GB/T 1299-2014
Category Tool & Die Steels Tool & Die Steels
C (%) 0.95-1.05 0.30-0.40
Si (%) <=0.35 0.20-0.40
Mn (%) 0.90-1.20 0.20-0.50
P (%) <=0.03 0.030 max
S (%) <=0.03 0.030 max
Cr (%) 0.80-1.20 2.20-2.70
W (%) 1.00-1.50 7.50-9.00
V (%) Not specified 0.20-0.50
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 SKS31 GB/T 1299 3Cr2W8V
Tensile Strength 900-1150 MPa 1180-1380 MPa
Yield Strength 750 MPa min 980-1180 MPa
Elongation 10% min 10-14%
Hardness 58-62 HRC 48-54 HRC
Typical Applications
JIS G4404 SKS31
Cold working molds, press dies, jigs, gauges, long taps, reamers, measuring tools requiring minimal quenching distortion.
GB/T 1299 3Cr2W8V
Used for hot forging dies, extrusion dies, die-casting molds, hot punches, and hot shear blades.
Key Differences
Can JIS G4404 SKS31 Be Substituted With GB/T 1299 3Cr2W8V?
JIS G4404 SKS31 and GB/T 1299 3Cr2W8V 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 SKS31
Round Bar → (2 listings)
Diameter: 80–80 mm (3.15–3.15 in)
Length: 2500–3700 mm (98.43–145.67 in)
GB/T 1299 3Cr2W8V
Round Bar → (2 listings)
Diameter: 80–80 mm (3.15–3.15 in)
Length: 2800–2900 mm (110.24–114.17 in)
On M-EX Right Now
JIS G4404 SKS31
2 active listings and RFQs →
GB/T 1299 3Cr2W8V
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between JIS G4404 SKS31 and GB/T 1299 3Cr2W8V?
GB/T 1299 3Cr2W8V specifies V which is not specified for JIS G4404 SKS31.
Can JIS G4404 SKS31 be substituted with GB/T 1299 3Cr2W8V?
JIS G4404 SKS31 and GB/T 1299 3Cr2W8V 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.