GH4220 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of GH4220

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GB GH4220

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This page is mainly introduced the GH4220 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of GH4220,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
GH4220

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C   0.08
Cr 9.0  12.0
Mo 5.0  7.0
Ni   Remainder
Co 14.0  15.0
W 5.0  6.5
Al 3.9  4.8
Ti 2.2  2.9
B   0.02
Fe   3.0
V 0.2  0.8
Mg   trace

Mechanical Properties

Tensile strength 332~860 σb/MPa
Yield Strength 758 σ 0.2 ≥/MPa
Elongation 93 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 851~418 -
HRC 30 -

Physical Properties

Thermal expansion 16-29 e-6/K
Thermal conductivity 44-98 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 7830-8975 째C
Density 5630-4627 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)
GH4220 Superalloys 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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