20Cr2Ni4 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 20Cr2Ni4

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GBT 20Cr2Ni4

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This page is mainly introduced the 20Cr2Ni4 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 20Cr2Ni4,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
20Cr2Ni4
  • Steel Garde:20Cr2Ni4
  • Type:Special Alloy
  • Country:China
  • Standard:GBT
  • Application:China structural steel and alloy steel

Cross Reference Table(Equivalent Materials):

Material Standard Country
G20Cr2Ni4 GBT China

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 630~714 σb/MPa
Yield Strength 773 σ 0.2 ≥/MPa
Elongation 96 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 231~096 -
HRC 30 -

Physical Properties

Thermal expansion 84-59 e-6/K
Thermal conductivity 82-74 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 7188-1926 째C
Density 4700-6512 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)
20Cr2Ni4 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