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KS D 3753 STS3 vs JIS G4404 SKS31

Related Material — 64.1% match based on chemical composition and mechanical property overlap.

KS D 3753 STS3 (KS D 3753:2023) and JIS G4404 SKS31 (JIS G4404:2006) are both steel grades. Both fall under the Tool & Die Steels category. KS D 3753 STS3 is typically used for used in chisels, punches, dies, shear tools, gauges, and hand 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.. KS D 3753 STS3 is defined under Korean Industrial Standards (KS), originating from South Korea, while JIS G4404 SKS31 is defined under Japanese Industrial Standards (JIS), originating from Japan.

As per chemical composition, KS D 3753 STS3 vs JIS G4404 SKS31 is a 70.3% match. As per mechanical properties, the match is 51.9%. Combined, this makes them a related material overall at 64.1%.

Frequently Compared With KS D 3753 STS3:
DIN EN ISO 4957 1.2344 GB/T 1299 4Cr5MoSiV1 EN ISO 683-17 100Cr6 AISI 52100 GB/T 1299 4Cr5MoSiV DIN EN ISO 4957 1.2379 GOST 5950 4H5MFS1 EN ISO 4957 1.2316 GOST 5950 3H2W8F GB/T 1299 3Cr2W8V GOST 5950 4H5MFS IS 1570 (Part 6) 103T3
Match Breakdown
CHEMISTRY MATCH
70.3%
MECHANICAL MATCH
51.9%
OVERALL
64.1%
Specifications
Property KS D 3753 STS3 JIS G4404 SKS31
Standard KS D 3753:2023 JIS G4404:2006
Category Tool & Die Steels Tool & Die Steels
C (%) 0.80-0.90 0.95-1.05
Si (%) 0.15-0.35 <=0.35
Mn (%) 0.30-0.60 0.90-1.20
Cr (%) 0.50-1.00 0.80-1.20
W (%) 0.50-1.00 1.00-1.50
P (%) 0.030 max <=0.03
S (%) 0.030 max <=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 KS D 3753 STS3 JIS G4404 SKS31
Tensile Strength 880-1100 MPa 900-1150 MPa
Yield Strength 700 MPa min 750 MPa min
Elongation 10% min 10% min
Hardness 56-60 HRC 58-62 HRC
Typical Applications
KS D 3753 STS3
Used in chisels, punches, dies, shear tools, gauges, and hand tools.
JIS G4404 SKS31
Cold working molds, press dies, jigs, gauges, long taps, reamers, measuring tools requiring minimal quenching distortion.
Can KS D 3753 STS3 Be Substituted With JIS G4404 SKS31?
KS D 3753 STS3 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
KS D 3753 STS3
Round Bar → (2 listings)
Diameter: 80–80 mm (3.15–3.15 in)
Length: 2500–2600 mm (98.43–102.36 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
KS D 3753 STS3
2 active listings and RFQs →
JIS G4404 SKS31
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between KS D 3753 STS3 and JIS G4404 SKS31?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can KS D 3753 STS3 be substituted with JIS G4404 SKS31?
KS D 3753 STS3 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.