SK120 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SK120

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JIS SK120

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This page is mainly introduced the SK120 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SK120,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
SK120
  • Steel Garde:SK120
  • Type:Special Alloy
  • Country:Japan
  • Standard:JIS
  • Application:Carbon tool steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 634~762 σb/MPa
Yield Strength 440 σ 0.2 ≥/MPa
Elongation 97 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 892~677 -
HRC 30 -

Physical Properties

Thermal expansion 41-14 e-6/K
Thermal conductivity 19-52 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 8793-8124 째C
Density 8031-4831 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)
SK120 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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