GH141

HuaNickel GH141 is a nickel-based superalloy composed of Ni-Cr-Co and other elements, mainly with aging precipitation γ’ phase and M₆C type carbide as the main strengthening phase, and the service temperature is below 980 °C. The alloy has high tensile strength, durability and creep strength, yield and fatigue resistance and good oxidation resistance in the range of 650°C~900°C.

GH141 Chemical composition：

	Ni	C	Cr	Co	Mo	AI	Ti	B	Fe	Zr	S	Mn	Si	Cu
Min	Bal	0.06	18	10	9	1.4	3	0.003	≤
Max		0.12	20	12	10.5	1.8	3.5	0.01	5	0.08	0.015	0.5	0.5	0.5

GH141 Physical properties：

Density	8.27g/cm³
Melting point	1316~1371℃

Thermal conductivity

θ/℃	100	200	300	400	500
α/[W/(m·℃)]	8.37	10.47	12.56	15.07	17.17
θ/℃	600	700	800	900
α/[W/(m·℃)]	19.56	21.35	23.45	25.96	—

Resistivity

δ2mmPlate sampling, condition	20℃,p/(10-⁶Ω·m)
Hot rolling	1.31
1065℃×4h/AC	1.25
1065℃×4h/AC+760℃×16h/AC	1.27
1175℃×0.5h/AC	1.33
1175℃×0.5h/AC+900℃×4h/AC	1.34

Coefficient of linear expansion

θ/℃	20～100	20～200	20～300	20～400	20～500
α/(10-6℃-I)	10.54	11.69	12.24	12.78	13.08
θ/℃	20～600	20～700	20～800	20～900
α/(10-6℃-I)	13.48	14.21	14.97	15.91	—

GH141 Mechanical properties：

Standard number	Variety	Heat treatment	760℃Tensile properties				room temperature HBS	900℃Long-lasting performance
			σp0.2/MPa	σb/MPa	δ₅/%	ψ/%		σ/MPa	τ/h
Q/5B4027 Q/3B4060  辽新7-0073	Aviation round cakes, ring blanks, ring pieces, hot rolled and forged rods	1080℃±10℃+1120℃±10℃×30min/AC+900 ℃±10℃×4h/AC	≥620	≥835	≥12	≥15	≥283	172	≥20

GH141 Alloy properties：

High temperature performance: GH141 alloy has excellent high temperature performance, can work in extreme environments up to 900°C, and keeps its mechanical properties stable.

Corrosion resistance: GH141 alloy exhibits excellent corrosion resistance and can resist corrosion by high-temperature corrosive media such as oxidation and vulcanization.

Fatigue resistance: GH141 alloy has good fatigue resistance and can maintain stable mechanical properties for a long time under cyclic load.

Welding performance: HuaNickel GH141 alloy has good weldability, and reliable welding can be achieved through proper welding process.

GH141 Uses of alloys：

GH141 alloy is widely used in aviation, aerospace, energy and other fields. The alloy has been used in the manufacture of the front and rear sections of the combustion chamber wall of aero engines, the support rings and fixed rings of the outer ring of high-pressure turbines, the outer rings and inner support rings of high-pressure directors, the rear mounting edges of sealing support rings, the rear shell of the combustion chamber, sealing tabs and fasteners, as well as the turbine rotor and other parts of rocket engines.

GH141 Process performance：

Welding process: The alloy can be welded, diffusion, brazed and friction welded. Fusion welding can use electron beam welding or argon arc welding, and solution treatment or aging treatment should be carried out before welding in order to eliminate the tendency of weld strain aging cracks.

Relevant standards：

GJB2456、 GH141、HB/Z140 、Q/3B4060   GH141 、Q/3B4063   GH141  Q/5B4027   GH141、 GH141 、Q/GYB  05023、GH141Q/GYB  05028、 HGH141