GH4105

HuaNickel GH4105 is a Ni-Co-Cr-based deformed superalloy. It has excellent high-temperature strength, oxidation resistance and good thermal stability, and can be used in high-temperature environments for a long time.

GH4105 Chemical composition：

	Ni	C	Cr	Co	Mo	AI	Ti	B	Zr	Fe	Mn	Si	P	S	Cu
Min	Bal	0.12	14	18	4.5	4.5	1.18	0.003	0.07	≤
Max		0.17	15.7	22	5.5	4.9	1.5	0.01	0.15	1	0.4	0.25	0.015	0.01	0.2

GH4105 Physical properties：

Density	7.97g/cm³
Melting point	1340℃~1380℃[
Magnetic properties	not

Specific heat capacity

θ/℃	20	200	400
c/[J/(kg·℃)]	419	502	544
θ/℃	600	800	1000
c/[J/(kg·℃)]	586	628	670

Coefficient of linear expansion

θ/℃	20～200	20～300	20～400	20～500	20～600
α/(10-6℃-1)	13.0	13.5	13.9	14.3	14.7
θ/℃	20～700	20～800	20～900	20～1000	—
α/(10-6℃-I)	15.3	16.3	17.7	19.7

Resilient performance

θ/℃	20	100	200	300	400	500
E/GPa	227	221	216	211	205	199
θ/℃	600	700	800	900	1000
E/GPa	192	185	176	167	152	—

GH4105 Mechanical properties：

Standard number	Variety	Heat treatment	θ/℃	Tensile properties			Long-lasting performance
				σb/MPa	σp0.2/MPa	δ₅/%	σ/MPa	τ/h
WS97134	Flash butt welding profiles	Supply status	20	Measured	Measured	≥30
		Supply status 十Standard heat treatment	700	≥980	≥650	≥10
			815	—	—		330	≥25
WS97134饼	Cake material for ring rolled parts	Standard heat treatment	700	≥980	≥650	≥10
			815			—	330	≥25

GH4105 Alloy properties：

The deformation resistance of the alloy is large, and cracking during forging and rolling should be prevented, and the suitable drawing temperature for cold-drawn bars is about 600°C.

Corrosion resistance: GH4105 alloy exhibits excellent corrosion resistance in a variety of environments, including acidic, alkaline, oxidizing environments, and environments containing hydrogen sulfide and hydrogen chloride.

Weldability: In the high temperature environment of 1050°C, the weldability of HuaNickel GH4105 alloy is better than that of other similar alloys, and stable and firm welded joints can be obtained by conventional TIG or MIG welding process.

GH4105 Uses of alloys：

It is widely used in aviation, aerospace, energy and other fields. It is suitable for the manufacture of high-temperature parts such as aero engine turbine blades and high-temperature bolts.

GH4105 Process performance：

Welding process: GH4105 alloy welding heat affected zone is prone to microcracks, and tungsten inert gas shielded welding and metal electrode inert gas shielded welding are not suitable for welding. Flash butt welding and brazing in vacuum, liquefied hydrogen medium or inert gas (no more than 1150 °C) is better.

Heat treatment: The heat treatment of GH4105 alloy parts is the same as the standard heat treatment system of each variety. For the local work hardening of the blade in the manufacturing process after solution (before aging), argon or hydrogen protective surface annealing should be carried out according to the specified requirements, and the annealing temperature is 1020 °C ~ 1040 °C.

Relevant standards：

GB/T14992 、GJB1952A 、HB 5332  GH99 、HB 5333  HGH99、HB/Z140 、QJ/DT 0160018  GH99

QJ/DT 0160020  GH99、QJ/DT 0160021  GH99