SKS51 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SKS51

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JIS SKS51

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This page is mainly introduced the SKS51 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SKS51,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
SKS51
  • Steel Garde:SKS51
  • Type:Special Alloy
  • Country:Japan
  • Standard:JIS
  • Application:Alloy tool steel - Tool steel

Cross Reference Table(Equivalent Materials):

Material Standard Country
SKS51M JIS Japan

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 778~728 σb/MPa
Yield Strength 252 σ 0.2 ≥/MPa
Elongation 38 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 087~615 -
HRC 30 -

Physical Properties

Thermal expansion 51-80 e-6/K
Thermal conductivity 09-18 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 7225-7104 째C
Density 5320-7338 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)
SKS51 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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