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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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GBT 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

Steel Garde:GH4220
Type:Special Alloy
Country:China
Standard:GBT
Application:Nickel base superalloy

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	997～727	σb/MPa
Yield Strength	455	σ 0.2 ≥/MPa
Elongation	34	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	586～654	-
HRC	30	-

Physical Properties

Thermal expansion	18-23	e-6/K
Thermal conductivity	12-77	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	3042-5100	째C
Density	3185-8429	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 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