STS420J1 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of STS420J1

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KS STS420J1

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This page is mainly introduced the STS420J1 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of STS420J1,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
STS420J1
  • Steel Garde:STS420J1
  • Type:Special Alloy
  • Country:Korea
  • Standard:KS
  • Application:martensitic steel

Cross Reference Table(Equivalent Materials):

Material Standard Country
STS420J1 KS Korea
STS420J1TKA KS Korea

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 852~892 σb/MPa
Yield Strength 274 σ 0.2 ≥/MPa
Elongation 84 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 956~096 -
HRC 30 -

Physical Properties

Thermal expansion 19-50 e-6/K
Thermal conductivity 03-18 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 8935-0403 째C
Density 8798-0873 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)
STS420J1 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