Metal Alloy High Temperature Inconel718 Alloy Tube

About Metal Alloy High Temperature Inconel718 Alloy Tube:
Inconel 718 alloy tube is a high-performance nickel-based high-temperature alloy material with excellent high-temperature strength, corrosion resistance, and oxidation resistance, widely used in aviation, aerospace, energy, and other fields. This article will explore the applications of Inconel 718 alloy tubes in various fields.
Chemical composition: 
Ni (50 ~ 55)
Cr (17 ~ 21)
Fe (residual)
Mo (2.8 ~ 3.3)
Nb (4.75 ~ 5.50)
Co (1.0)
C (0.08)
Mn (0.35)
Si (0.35)
S (0.015)
Cu (0.30)
Al (0.20 ~ 0.80)
Ti (0.65 ~ 1.15)  

Melting temperature: 1260 ~ 1340℃

Technical standard: GB/T14992,GB/T14993

Properties: good comprehensive properties in the temperature range of -253 ~ 700℃, the yield strength below 650℃ ranks first in the deformation superalloy, and has good fatigue resistance, radiation resistance, oxidation resistance, corrosion resistance, and good machining and welding performance.

Applications: Inconel718 Alloy Tube can manufacture various complex shaped parts, and is widely used in aerospace, nuclear energy, petroleum industry and extrusion die in the above temperature range.  

1. Aerospace Applications
Inconel 718 alloy tubes have a wide range of applications in the aerospace industry, mainly in the manufacturing of aircraft engines. Due to the extremely harsh working environment of aviation engines, they need to cope with extreme conditions such as high temperature, high pressure, and high speed, thus requiring extremely high materials. Inconel 718 alloy tubes have excellent high-temperature strength and corrosion resistance, which can maintain stable performance under extreme conditions, making them widely used in the manufacturing of aircraft engines.
Inconel 718 alloy tubes can manufacture key components such as turbine blades, guide vanes, and turbine discs in aviation engines. These components play a crucial role in the engine, and the high-temperature performance and corrosion resistance of Inconel 718 alloy pipes can ensure that these components can maintain stable performance under extreme conditions, thereby improving the overall performance and service life of aviation engines.

2. Energy Applications
Inconel 718 alloy tubes are also widely used in the energy field, mainly in manufacturing nuclear reactors. Nuclear reactors are high-temperature and high-pressure equipment that can generate nuclear energy with extremely high material requirements. Inconel 718 alloy tubes have excellent corrosion resistance and oxidation resistance. They can operate stably in harsh environments of high temperature and pressure, making them widely used in manufacturing nuclear reactors.
Inconel 718 alloy tubes can manufacture key components such as fuel elements, control rods, and reactor pressure shells in nuclear reactors. These components play a crucial role in nuclear reactors, and the high-temperature performance and corrosion resistance of Inconel 718 alloy tubes can ensure that these components can maintain stable performance in high-temperature and high-pressure environments, thereby improving the overall performance and service life of nuclear reactors.

3. Industrial applications
Inconel 718 alloy pipes are also widely used in the industrial field, mainly in manufacturing high-temperature equipment. Due to the need to operate in harsh environments such as high temperature, high pressure, and high corrosion, high-temperature equipment requires using materials with excellent performance for manufacturing. Inconel 718 alloy pipes have excellent high-temperature strength and corrosion resistance, which can maintain stable performance in harsh high-temperature environments. Therefore, they are widely used in the manufacturing of high-temperature equipment.
In high-temperature equipment, Inconel 718 alloy pipes can manufacture key components such as high-temperature pipelines, heaters, reactors, etc. These components play a crucial role in high-temperature equipment, and the high-temperature performance and corrosion resistance of Inconel 718 alloy pipes can ensure that these components can maintain stable performance in harsh high-temperature environments, thereby improving the overall performance and service life of high-temperature equipment.

4. Medical applications
Inconel 718 alloy tubes also have good biocompatibility and corrosion resistance, so they have certain applications in the medical field. It can be used to manufacture components of medical devices, such as surgical instruments, implants, etc. Due to the excellent corrosion resistance and biocompatibility of the Inconel 718 alloy tube, it can ensure the safety and reliability of the device during the medical process and improve medical quality and effectiveness.

5. Military applications
Inconel 718 alloy pipes have excellent high-temperature strength, corrosion resistance, and oxidation resistance. Therefore, they also have certain applications in the military field. It can be used to manufacture components for military equipment, such as components for missiles, rocket engines, etc. Due to the excellent mechanical properties and fatigue resistance of Inconel 718 alloy pipes, they can maintain stable performance in harsh environments of military equipment, improving the reliability and service life of the equipment.

Process performance and requirements:  

1. Because of the high content of niobium in Inconel718 alloy, the degree of niobium segregation in the alloy is directly related to the gold treatment process.  

2. In order to avoid excessive element segregation in steel ingot, the diameter of steel ingot is not more than 508mm.  

3. The homogenized alloy has good thermal working performance, and the heating temperature of the steel ingot shall not exceed 1120℃.  

4. The average grain size of the alloy is closely related to the deformation degree of the forging and the final forging temperature.  

5. The alloy has satisfactory welding performance, can be welded by argon arc welding, electron beam welding, seam welding, spot welding and other methods.  

6. Alloy with different solution treatment and aging treatment process will get different material properties.  Due to the low diffusion rate of γ "phase, the mechanical properties of Inconel718 alloy can be obtained by aging for a long time.  

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