SKS8 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SKS8

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JIS SKS8

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This page is mainly introduced the SKS8 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SKS8,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
SKS8
  • Steel Garde:SKS8
  • Type:Special Alloy
  • Country:Japan
  • Standard:JIS
  • Application:Alloy tool steel - Tool steel

Cross Reference Table(Equivalent Materials):

Material Standard Country
SKS81 JIS Japan
SKS81M JIS Japan

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 579~777 σb/MPa
Yield Strength 431 σ 0.2 ≥/MPa
Elongation 95 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 172~161 -
HRC 30 -

Physical Properties

Thermal expansion 30-44 e-6/K
Thermal conductivity 44-46 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 9218-5217 째C
Density 8130-9638 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)
SKS8 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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