SM400B chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SM400B

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CNS SM400B

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This page is mainly introduced the SM400B chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SM400B,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
SM400B
  • Steel Garde:SM400B
  • Type:Special Alloy
  • Country:China
  • Standard:CNS
  • Application:China Taiwan Structural steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 607~117 σb/MPa
Yield Strength 799 σ 0.2 ≥/MPa
Elongation 52 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 485~123 -
HRC 30 -

Physical Properties

Thermal expansion 33-32 e-6/K
Thermal conductivity 22-25 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 2026-3448 째C
Density 1725-0723 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)
SM400B 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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