GH49 

HuaNickel GH49 is a nickel-based superalloy composed of elements such as Ni-Co-Cr. The alloy has good oxidation resistance, corrosion resistance and high high temperature strength. The alloy is widely used in aviation, aerospace, petroleum, chemical, shipbuilding and other fields.

GH49 Chemical composition：

	Ni	C	Cr	Co	W	Mo	AI	Ti	V	Fe	B	Ce	Mn	Si	P	S	Cu
Min	Bal	0.04	9.5	14	5	4.5	3.7	1.4	0.2	≤
Max		0.1	11	16	6	5.5	4.4	1.9	0.5	1.5	0.25	0.02	0.5	0.5	0.1	0.01	0.07

GH49 Physical properties：

Density	8.44g/cm³
Melting point	1320~1390℃
Magnetic properties	not
Specific heat capacity	414J/(kg·℃)
Thermal conductivity	10.5
Resistivity	1.36×10-6Ω·m

GH49 Mechanical properties：

Tensile strengthRm\MPa	Yield strengthRP0.2N/MM²	ElongationA5/%	HardnessHB
≥569	≥215	≥8	≥302

GH49 Alloy properties：

Compared with nickel-based alloys for similar purposes, GH49 alloy has poor hot-working plasticity, but after electroslag remelting or vacuum arc remelting, its processing plasticity can be improved, and the impact toughness of 1000°C~1170°C is increased by 1~3 times.

GH49 Uses of alloys：

GH49 alloy is a superalloy with excellent oxidation resistance, which can maintain excellent mechanical properties and corrosion resistance at high temperatures. This alloy is widely used in aviation, aerospace, energy and other fields.

GH49 Process performance：

Welding process: HuaNickel GH49 alloy can be welded by a variety of methods, including argon arc welding, electron beam welding, laser welding, etc. During the welding process, attention should be paid to selecting suitable welding materials and filler materials to ensure the mechanical properties and corrosion resistance of the weld.

Heat treatment: GH49 alloy usually needs to be heat treated to obtain the best material properties. Common heat treatment processes include solution treatment and aging treatment.

Relevant standards：

GB/T14992、GB/T14993、GJB1953A、HB/Z140