NS344

HuaNickel NS344 is a nickel-based superalloy composed primarily of nickel, chromium and iron, along with cobalt, aluminum, titanium and other alloying elements. NS3404 alloy has excellent high-temperature strength and good oxidation and corrosion resistance, so it has a wide range of applications in high-temperature and high-pressure environments.

NS344Chemical composition：

	Ni	Cr	Mo	W	Fe	Cu	C	Si	Mn	P	S	Co
Min	Bal	28.5	4	1.5	13	1	≥
Max		31.5	6	4	17	2.4	0.03	0.8	1.5	0.004	0.02	5

NS344Physical properties：

Density	8.22g/cm3
Melting point	1350~1370 ℃
Specific heat capacity	388~619J/kg.K
Thermal conductivity	10.2~16.7 W(m.K）

NS344Mechanical properties：

Tensile strength	Tensile strength	Elongation	hardness	1.25
850-1000	1100 MPa	30%	25 HRC	1.65

NS344Alloy properties：

High temperature strength:HuaNickel NS344 alloy has excellent high temperature strength and can maintain good mechanical properties in high temperature environments. It has high yield strength and tensile strength and is able to withstand high temperature and stress working conditions.

Oxidation resistance: It can stably maintain its performance at high temperatures, and resist oxidation and hot corrosion in high temperature atmospheres.

NS344Uses of alloys：

It is used in the manufacture of turbine blades, turbine discs and combustion chamber components for gas turbines; Combustion chambers of aero engines, jet engine parts, etc.

NS344Process performance：

Welding performance: When carrying out welding operations, it is necessary to select appropriate welding materials and processes, and pay attention to preheating and post-heat treatment to reduce the residual stress caused by welding and avoid cracks.

Machining: When milling, drilling, boring and other cutting operations, it is usually necessary to use carbide tools to ensure that the tools have good rigidity and thermal stability.

Relevant standards：

GB /T 15007-2017