Views: 0 Author: Site Editor Publish Time: 2025-10-22 Origin: Site
In high-end manufacturing sectors such as aerospace, defense, and nuclear power, material selection often determines the success or failure of an entire project. GH4169 capillary tube, as a high-performance nickel-based superalloy, is becoming an indispensable key component in these industries.

The core advantage of the GH4169 capillary tube lies in its exceptional mechanical properties at high temperatures. Among all wrought superalloys, this nickel-based alloy ranks first in yield strength below 650°C. Even under extreme conditions of 700°C, it maintains excellent tensile and fatigue strength. In terms of chemical composition, GH4169 contains 50–55% nickel, 17–21% chromium, and 4.75–5.5% niobium. This precise formulation endows the material with outstanding oxidation and corrosion resistance.
In practical applications, GH4169 capillary tubes exhibit impressive comprehensive performance. They offer excellent fatigue resistance, radiation resistance, good machinability, and weldability. This allows manufacturers to process the material into complex components based on specific requirements, significantly enhancing design flexibility and broadening application scenarios.
The production of GH4169 capillary tubes reflects the essence of modern precision manufacturing. Beginning with vacuum induction melting, followed by refining processes such as electroslag remelting or vacuum arc remelting, each step is rigorously controlled to ensure alloy purity and compositional uniformity. Subsequent hot and cold working procedures, combined with precise heat treatment protocols, are crucial to achieving the final properties of the tubes.
Notably, the heat treatment process is of critical importance. Solution treatment is typically carried out at around 1150°C, followed by rapid cooling to ensure uniform element distribution. Aging treatment is conducted within the 700–800°C range, where controlled soaking time and cooling rates further enhance the alloy’s performance. This meticulous heat treatment system directly determines the final quality of GH4169 capillary tubes.
In the aerospace sector, GH4169 capillary tubes are widely used in the manufacture of turbine discs, blades, combustion chambers, and other key components of aircraft engines. These components must operate reliably under high temperature and pressure, and GH4169 provides a dependable material foundation for flight safety.
In the defense industry, GH4169 capillary tubes are also in high demand. Missile engines, satellite components, and other military-grade systems require stable performance in high-temperature and corrosive environments. GH4169, with its stable chemical composition and excellent workability, is the preferred material for such applications.
The chemical and nuclear power industries also make extensive use of GH4169 capillary tubes. In petrochemical engineering, they are used to manufacture high-temperature, high-pressure pipelines, valves, reactors, and similar equipment. In the nuclear sector, GH4169 is used to produce elastic elements and structural parts inside reactors, leveraging its core advantages of high-temperature and corrosion resistance.
As a standout product in the field of superalloys, GH4169 capillary tube is providing strong material support for the advancement of strategic industries such as aerospace, defense, and nuclear energy in China. With ongoing technological development and expanding application areas, this high-performance precision tubing is poised to play an increasingly vital role in elevating Chinese manufacturing to higher levels.
If you have any questions regarding the technical specifications, application solutions, or purchasing requirements for GH4169 capillary tubes, please feel free to contact us. Jiangsu Zhongxing Nickel Alloy Materials Co., Ltd. specializes in the R&D and manufacturing of precision superalloy tubes and can provide you with expert technical support and customized solutions.
Contact Number: 19145729409 — We are here to serve you with dedication.
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