SKS31 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SKS31

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JIS SKS31

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This page is mainly introduced the SKS31 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SKS31,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
SKS31
  • Steel Garde:SKS31
  • Type:Special Alloy
  • Country:Japan
  • Standard:JIS
  • Application:Cold Work Die Steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 335~327 σb/MPa
Yield Strength 793 σ 0.2 ≥/MPa
Elongation 82 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 062~593 -
HRC 30 -

Physical Properties

Thermal expansion 11-55 e-6/K
Thermal conductivity 93-37 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 1173-9044 째C
Density 9636-1017 kg/m3
Resistivity 0.50-0.60 Ohm.mm2/m
     

Heat Treatment Regime

Annealing

Quenching

Tempering

Normalizing

Q & T

Size Availability

Steel Grade Specification Processing range(mm)
SKS31 Special Alloy Round Bar and Hollow Bar Φ1 to Φ2000
Square and Flat Steel Φ10 to Φ100
Plate and Sheet 0.08-800(Thickness)*10-1500(Width)*Length
Tube or Pipe OD:Φ4-410; WT:1-35 mm; Lenght:10-12000
Coil and Strip Steel THK:0.1mm Width:1500mm
Forged Ring/Cylindrical/Disk

Technical specification/standard for download

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