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JIS G4404:2006 SKS31 Steel: Specifications & Listings

JIS G4404:2006 SKS31: SKS31 is an alloy tool steel used for cold work tooling and cutting applications. It provides good wear resistance, toughness, and dimensional stability after heat treatment.

Forms: Round Bar Category: Tool & Die Steels
Grade Details
GradeJIS G4404:2006 SKS31
Standard JIS G4404:2006
ApplicationsCold working molds, press dies, jigs, gauges, long taps, reamers, measuring tools requiring minimal quenching distortion.
Most Active InWest (Maharashtra)
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Round Bar →
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Grade Standard Match
IS 1570 (Part 6) T110Mn4W6Cr4 IS 1570 (Part 6):1996 Close Alternative
IS 1570 (Part 6) T140W15Cr2 IS 1570 (Part 6):1996 Related Material
IS 1570 (Part 6) T105W6CrV2 IS 1570 (Part 6):1996 Related Material
IS 1570 (Part 6) T90Mn6WCr2 IS 1570 (Part 6):1996 Related Material
GOST 5950 9HVG GOST 5950-2000 Related Material
KS D 3753 STS3 KS D 3753:2023 Related Material
IS 1570 (Part 6) XT33W9Cr3V4 IS 1570 (Part 6):1996 Related Material
IS 1570 (Part 6) XT55W14Cr3V4 IS 1570 (Part 6):1996 Related Material
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Chemical Composition (%)
C Si Mn P S Cr W
0.95-1.05 <=0.35 0.90-1.20 <=0.03 <=0.03 0.80-1.20 1.00-1.50
Mechanical Properties
Tensile Strength 900-1150 MPa
Yield Strength 750 MPa min
Elongation 10% min
Hardness 58-62 HRC

Popular forms for this grade:

Round Bar (2)

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JIS G4404:2006 SKS31 Round Bar
0.900 MT
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JIS G4404:2006 SKS31 Round Bar
0.900 MT
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