420 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 420

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AS 420

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This page is mainly introduced the 420 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 420,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
420
  • Steel Garde:420
  • Type:Special Alloy
  • Country:Australia
  • Standard:AS
  • Application:Australia Stainless steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 225~678 σb/MPa
Yield Strength 057 σ 0.2 ≥/MPa
Elongation 82 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 502~184 -
HRC 30 -

Physical Properties

Thermal expansion 07-87 e-6/K
Thermal conductivity 42-96 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 7810-3752 째C
Density 3723-8754 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)
420 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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