GH4220

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#GH4220

Description

China GB GH4220 Superalloys Nickel-base superalloy and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Superalloys: GH4220

Category	Class	Grade	Standard	Country	Application
Steel Grades	Superalloys	GH4220	GB	China	Nickel-base superalloy

Chemical composition(mass fraction)(wt.%) of the GH4220

C	Cr	Mo	Ni	Co	W	Al	Ti	B	Fe	V	Mg
≤0.08	9.0 -12.0	5.0 -7.0	≤Remainder	14.0 -15.0	5.0 -6.5	3.9 -4.8	2.2 -2.9	≤0.02	≤3.0	0.2 -0.8	≤trace

Mechanical Properties of steel grade GH4220

Yield R_p0.2 (MPa)	Tensile R_m (MPa)	Impact KV/Ku (J)	Elongation A (%)	Reduction in cross section on fracture Z (%)	As-Heat-Treated Condition	Brinell hardness (HBW)
274 (≥)	792 (≥)	12	13	24	Solution and Aging, Annealing, Ausaging, Q+T,etc	344

Physical Properties of steel grade GH4220

Temperature (°C)	Modulus of elasticity (GPa)	Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and	Thermal conductivity (W/m·°C)	Specific thermal capacity (J/kg·°C)	Specific electrical resistivity (Ω mm²/m)	Density (kg/dm³)	Poisson’s coefficient, ν
41	-	-			0.21	-
415	851	-	43.3	214		-
719	-	21	23.2			443	421

Heat Treatment of steel grade GH4220

Heat treated : 1782°C - 1843°C

Technological Curves of steel grade GH4220

No Curve

Cross Reference Table (Equivalent Grade) of GH4220

Grade	Standard	Country	Application
GH4220
GH4220

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Rfq.: sales@longhaisteel.com

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