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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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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

Steel Garde:GH4220
Type:Superalloys
Country:China
Standard:GB
Application:Nickel-base superalloy

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
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	823～515	σb/MPa
Yield Strength	157	σ 0.2 ≥/MPa
Elongation	01	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	192～194	-
HRC	30	-

Physical Properties

Thermal expansion	50-03	e-6/K
Thermal conductivity	34-81	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	8411-3685	째C
Density	4592-7476	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