SM400A chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SM400A

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CNS SM400A

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This page is mainly introduced the SM400A chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SM400A,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
SM400A
  • Steel Garde:SM400A
  • Type:Special Alloy
  • Country:China
  • Standard:CNS
  • Application:China Taiwan Structural steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 283~817 σb/MPa
Yield Strength 789 σ 0.2 ≥/MPa
Elongation 89 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 034~991 -
HRC 30 -

Physical Properties

Thermal expansion 50-70 e-6/K
Thermal conductivity 56-56 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 6489-0069 째C
Density 9394-7303 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)
SM400A 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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