SMn438 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SMn438

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CNS SMn438

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This page is mainly introduced the SMn438 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SMn438,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
SMn438
  • Steel Garde:SMn438
  • Type:Special Alloy
  • Country:China
  • Standard:CNS
  • Application:China Taiwan Structural steel

Cross Reference Table(Equivalent Materials):

Material Standard Country
SMn438H CNS China

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 147~690 σb/MPa
Yield Strength 472 σ 0.2 ≥/MPa
Elongation 89 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 827~641 -
HRC 30 -

Physical Properties

Thermal expansion 10-36 e-6/K
Thermal conductivity 14-19 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 7497-4155 째C
Density 3461-2020 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)
SMn438 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