40CrNi chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 40CrNi

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GBT 40CrNi

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This page is mainly introduced the 40CrNi chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 40CrNi,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
40CrNi
  • Steel Garde:40CrNi
  • Type:Special Alloy
  • Country:China
  • Standard:GBT
  • Application:China structural steel and alloy steel

Relevant products:

  • D6AC Forging Hollow Bar

    D6AC Forging Hollow Bar

  • Cross Reference Table(Equivalent Materials):

    Material Standard Country
    40CrNi12 STAS/SR Romania
    40CrNi12S STAS/SR Romania
    40CrNi12q STAS/SR Romania
    40CrNiMoA GBT China

    Chemical composition(mass fraction)(wt.%)

    Mechanical Properties

    Tensile strength 341~139 σb/MPa
    Yield Strength 250 σ 0.2 ≥/MPa
    Elongation 43 δ5≥(%)
    ψ - ψ≥(%)
    Akv - Akv≥/J
    HBS 628~539 -
    HRC 30 -

    Physical Properties

    Thermal expansion 88-15 e-6/K
    Thermal conductivity 26-94 W/m.K
    Specific heat 450-460 J/kg.K
    Melting temperature 3655-6632 째C
    Density 2549-3852 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)
    40CrNi 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