20Cr chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 20Cr

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GBT 20Cr

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This page is mainly introduced the 20Cr chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 20Cr,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
20Cr
  • Steel Garde:20Cr
  • Type:Special Alloy
  • Country:China
  • Standard:GBT
  • Application:China structural steel and alloy steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 015~893 σb/MPa
Yield Strength 351 σ 0.2 ≥/MPa
Elongation 69 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 176~104 -
HRC 30 -

Physical Properties

Thermal expansion 52-70 e-6/K
Thermal conductivity 20-18 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 2988-0348 째C
Density 7944-6025 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)
20Cr 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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