SCM420H chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SCM420H

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CNS SCM420H

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This page is mainly introduced the SCM420H chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SCM420H,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
SCM420H
  • Steel Garde:SCM420H
  • Type:Special Alloy
  • Country:China
  • Standard:CNS
  • Application:China Taiwan Structural steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 375~060 σb/MPa
Yield Strength 178 σ 0.2 ≥/MPa
Elongation 82 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 891~534 -
HRC 30 -

Physical Properties

Thermal expansion 80-17 e-6/K
Thermal conductivity 14-39 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 7379-6296 째C
Density 9522-6425 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)
SCM420H 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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