GH1138

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#GH1138

Description

China GB GH1138 Superalloys Iron-based superalloy and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Superalloys: GH1138

Category	Class	Grade	Standard	Country	Application
Steel Grades	Superalloys	GH1138	GB	China	Iron-based superalloy

Chemical composition(mass fraction)(wt.%) of the GH1138

C	Cr	Mo	Ni	W	Al	Nb	B	Fe	Mn	Si	Ce	N	Zr
≤0.10	18.0 -22.0	2.0 -2.6	35.0 -40.0	4.5 -5.2	≤0.5	1.0 -1.7	≤0.008	≤Remainder	1.0 -2.0	≤0.8	≤0.05	0.10 -0.25	≤0.05

Mechanical Properties of steel grade GH1138

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)
642 (≥)	395 (≥)	22	21	14	Solution and Aging, Annealing, Ausaging, Q+T,etc	142

Physical Properties of steel grade GH1138

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
33	-	-			0.14	-
745	875	-	31.3	232		-
134	-	44	33.2			223	413

Heat Treatment of steel grade GH1138

Heat treated : 1585°C - 1649°C

Technological Curves of steel grade GH1138

No Curve

Cross Reference Table (Equivalent Grade) of GH1138

Grade	Standard	Country	Application
GH1138
GH1138

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