400 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 400

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AS 400

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This page is mainly introduced the 400 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 400,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
400
  • Steel Garde:400
  • Type:Special Alloy
  • Country:Australia
  • Standard:AS
  • Application:Australia Structural steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 438~592 σb/MPa
Yield Strength 709 σ 0.2 ≥/MPa
Elongation 86 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 912~303 -
HRC 30 -

Physical Properties

Thermal expansion 24-32 e-6/K
Thermal conductivity 75-38 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 8720-5794 째C
Density 9772-0262 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)
400 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