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

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GBT 50B

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

Cross Reference Table(Equivalent Materials):

Material Standard Country
XH50BMTKΦЮ(ЭП57) ГОСТ Russia
XH50BMKTЮP-ИД0ЭП99-ИД) ГОСТ Russia

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 844~370 σb/MPa
Yield Strength 782 σ 0.2 ≥/MPa
Elongation 32 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 766~666 -
HRC 30 -

Physical Properties

Thermal expansion 79-83 e-6/K
Thermal conductivity 41-40 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 5517-9721 째C
Density 1601-0716 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)
50B 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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