GB 85 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of GB 85

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GBT GB 85

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This page is mainly introduced the GB 85 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of GB 85,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
85
  • Steel Garde:GB 85
  • Type:Special Alloy
  • Country:China
  • Standard:GBT
  • Application:China structural steel and alloy steel

Relevant products:

  • D2(Cr12Mo1V1) Hot Rolled Plate

    D2(Cr12Mo1V1) Hot Rolled Plate

  • Chemical composition(mass fraction)(wt.%)

    Mechanical Properties

    Tensile strength 618~520 σb/MPa
    Yield Strength 731 σ 0.2 ≥/MPa
    Elongation 60 δ5≥(%)
    ψ - ψ≥(%)
    Akv - Akv≥/J
    HBS 171~435 -
    HRC 30 -

    Physical Properties

    Thermal expansion 49-25 e-6/K
    Thermal conductivity 61-41 W/m.K
    Specific heat 450-460 J/kg.K
    Melting temperature 0034-3565 째C
    Density 3348-1718 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)
    GB 85 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

    Hot keywords:85
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