GCr4 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of GCr4

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GBT GCr4

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This page is mainly introduced the GCr4 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of GCr4,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
GCr4
  • Steel Garde:GCr4
  • Type:Special Alloy
  • Country:China
  • Standard:GBT
  • Application:China structural steel and alloy steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 771~200 σb/MPa
Yield Strength 104 σ 0.2 ≥/MPa
Elongation 85 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 489~719 -
HRC 30 -

Physical Properties

Thermal expansion 52-20 e-6/K
Thermal conductivity 50-82 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 0692-6068 째C
Density 0559-8320 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)
GCr4 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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