GH4738

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#GH4738

Description

China GB GH4738 Superalloys Nickel-base superalloy and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Superalloys: GH4738

Category	Class	Grade	Standard	Country	Application
Steel Grades	Superalloys	GH4738	GB	China	Nickel-base superalloy

Chemical composition(mass fraction)(wt.%) of the GH4738

C	Cr	Mo	Ni	Co	Al	Ti	B	Fe	Zr
0.03 -0.10	18.0 -21.0	3.5 -5.0	≤Remainder	12.0 -15.0	1.2 -1.6	2.75 -3.25	0.003 -0.01	≤2.0	0.02 -0.08

Mechanical Properties of steel grade GH4738

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)
257 (≥)	953 (≥)	32	14	14	Solution and Aging, Annealing, Ausaging, Q+T,etc	213

Physical Properties of steel grade GH4738

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
43	-	-			0.32	-
195	148	-	31.3	441		-
687	-	22	14.2			432	122

Heat Treatment of steel grade GH4738

Heat treated : 1958°C - 1918°C

Technological Curves of steel grade GH4738

No Curve

Cross Reference Table (Equivalent Grade) of GH4738

Grade	Standard	Country	Application
GH4738
GH4738

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