GH4169 is a Ni-Cr-Fe-based precipitation hardening deformed superalloy with a wide range of applications, ranging from -253 650 for long-term use and up to 800 for short-term use. The alloy exhibits high strength below 650 and has excellent resistance to fatigue, radiation, oxidation and corrosion, as well as good processability, weldability and long-term microstructure stability. Due to these excellent properties, GH4169 alloy is suitable for a variety of high-temperature components in the aviation, aerospace, nuclear and petrochemical industries, including turbine discs, rings, blades, shafts, fasteners, elastic elements, plate structural parts, casings, etc. Its main products include hot-rolled and forged bars, cold-drawn rods, plates and strips, wires, tubes, rings and forgings, among others.
Sealing elements refer to parts used to prevent fluid or gas leakage, and are commonly used in gas pipes, turbine discs and other components in aero engines. GH4169 alloy makes it an ideal material for manufacturing sealing elements due to its superior corrosion resistance and high temperature stability. In these components, the alloy is able to maintain stable performance and is not affected by environmental factors such as high temperatures and corrosion, ensuring the reliability and durability of the sealing system.
Welded structural parts refer to structural components that are connected by welding methods, such as casings in aero engines. GH4169 alloy has good welding performance in the solid solution state, and various welding processes can be used, including spot welding, seam welding and hydrogen arc welding, etc., to ensure the reliable connection and stability of structural parts. Its properties such as high temperature resistance, oxidation resistance, and strength make it ideal for welded structural parts.
The high-quality varieties of GH4169 alloy have stricter control over carbon, saw, sulfur and gas content, and are mainly used to manufacture various types of rotating parts. In terms of manufacturing process, GH4169 alloy is divided into three categories: standard, high-strength and direct aging, of which high-strength and direct aging process are used for high-quality GH4169 alloy forgings. The application of these processes makes the average grain size of the alloy more refined and the strength increased, which can meet the requirements of different rotating parts.
GH4169 alloy follows GB T 14992, GJB 2611A, GJB 2612, GJB 3318A, GJB 3527, GJB 5280, GJB 5301, GJB 712A, HB Z 140 and other related technical standards. In terms of smelting process, ammonia cooling process and superplastic forming process can be used to improve the uniformity of the alloy and reduce the production cost and shorten the production cycle.
Compared with other superalloys, GH4169 alloy has significant advantages in a wide range of operating temperatures, good mechanical properties and corrosion resistance, making it one of the ideal materials for aero engines and other high-temperature environments.