GH3128 high-temperature alloy forging rod is a high-performance alloy material developed by China's aviation industry. It is a wrought nickel-based superalloy with excellent high-temperature strength, oxidation resistance, and fatigue resistance. Its high-temperature properties can maintain structural stability at temperatures up to 900°C, and it has excellent creep resistance, so it is often used in high-temperature and high-stress environments.
Chemical Composition of GH3128 Superalloy Forged Bar
The chemical composition of GH3128 high-temperature alloy forging rods includes 20-23% Cr, 12-15% Co, 5-8% Mo, 1.5-3% Ti, 0.5-1.5% Al, 0.02-0.1% B, and a small amount of other elements such as Fe, C, Si, Mn, Cu, Ni, and S. The alloy has a uniform and fine-grained microstructure, which ensures excellent workability, and after heat treatment, the mechanical properties can be further improved.
Application of GH3128 Superalloy Forged Bar
GH3128 high-temperature alloy forging rods have excellent fatigue resistance, crack resistance, and corrosion resistance. They are widely used in the aviation, aerospace, nuclear power, and petrochemical industries. For example, in the aviation and aerospace fields, this alloy is used to make high-temperature engine turbine blades, combustion chambers, afterburner parts, and other high-stress components. In the nuclear industry, it is used for making reactor core structural components. In the petrochemical industry, it is used to make piping, heat exchangers, reactors, and other high-temperature and high-pressure equipment.
The Feature of GH3128 Superalloy Forged Bar
The process of manufacturing GH3128 high-temperature alloy forging rods includes melting, forging, heat treatment, and finishing. The melting process includes vacuum induction melting and electroslag remelting. After melting, the alloy is forged into the desired shape by using mechanical or hydraulic presses. The forged rod undergoes heat treatment to improve its mechanical properties, and then it is later machined and/or finished to meet the required specifications.
In conclusion, GH3128 high-temperature alloy forging rods are a high-performance material with excellent high-temperature strength, oxidation resistance, and fatigue resistance. They have wide applications in high-temperature and high-stress environments, such as the aviation, aerospace, nuclear power, and petrochemical industries. The manufacturing process includes multiple steps, and the final product has excellent mechanical properties after heat treatment and finishing.