SKS81 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SKS81

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JIS SKS81

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This page is mainly introduced the SKS81 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SKS81,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
SKS81
  • Steel Garde:SKS81
  • Type:Special Alloy
  • Country:Japan
  • Standard:JIS
  • Application:Alloy tool steel - Tool steel

Cross Reference Table(Equivalent Materials):

Material Standard Country
SKS81M JIS Japan

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 264~839 σb/MPa
Yield Strength 451 σ 0.2 ≥/MPa
Elongation 13 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 011~460 -
HRC 30 -

Physical Properties

Thermal expansion 02-46 e-6/K
Thermal conductivity 18-68 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 3956-3238 째C
Density 5127-1155 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)
SKS81 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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