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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	783～595	σb/MPa
Yield Strength	689	σ 0.2 ≥/MPa
Elongation	33	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	886～331	-
HRC	30	-

Physical Properties

Thermal expansion	44-97	e-6/K
Thermal conductivity	93-70	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	5252-5665	째C
Density	9957-3282	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