50 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 50

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GBT 50

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This page is mainly introduced the 50 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 50,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
50
  • Steel Garde:50
  • Type:Special Alloy
  • Country:China
  • Standard:GBT
  • Application:China structural steel and alloy steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 728~151 σb/MPa
Yield Strength 712 σ 0.2 ≥/MPa
Elongation 32 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 366~193 -
HRC 30 -

Physical Properties

Thermal expansion 65-88 e-6/K
Thermal conductivity 48-95 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 1982-1366 째C
Density 0703-4608 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)
50 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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