SKS7 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SKS7

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JIS SKS7

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This page is mainly introduced the SKS7 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SKS7,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
SKS7
  • Steel Garde:SKS7
  • Type:Special Alloy
  • Country:Japan
  • Standard:JIS
  • Application:Alloy tool steel - Tool steel

Cross Reference Table(Equivalent Materials):

Material Standard Country
SKS7M JIS Japan

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 911~605 σb/MPa
Yield Strength 313 σ 0.2 ≥/MPa
Elongation 98 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 434~574 -
HRC 30 -

Physical Properties

Thermal expansion 73-65 e-6/K
Thermal conductivity 49-65 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 1804-2328 째C
Density 6175-5171 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)
SKS7 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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