Hastelloy C-4 is a nickel-based alloy developed by the American Hastelloy Corporation in the 40s of the 20th century, which is highly regarded for its excellent corrosion resistance and high-temperature strength. Its chemical composition is mainly nickel and chromium, and contains small amounts of cobalt, tungsten and molybdenum.
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During the development of the C-4 alloy, Hastelloy conducted a lot of experiments and research to find the optimal alloy composition and heat treatment process. By adding tungsten and molybdenum elements, the high-temperature strength and creep resistance of the alloy are improved. At the same time, through the appropriate heat treatment process, the C-4 alloy has excellent corrosion resistance and oxidation resistance.
C-4 alloy exhibits good corrosion resistance in a variety of corrosive media, including oxidizing acids, reducing acids, salts, etc. In high-temperature environments, C-4 alloy has outstanding corrosion resistance and can withstand corrosive effects such as high-temperature oxidation and vulcanization. In addition, C-4 alloy also has good high-temperature strength and creep resistance, and can maintain high mechanical properties in high-temperature environments.
Due to its excellent corrosion resistance and high-temperature strength, C-4 alloy is widely used in a variety of fields. In the chemical industry, C-4 alloy is used in the manufacture of reactors, heat exchangers, pipelines and other equipment to resist the erosion of various corrosive media. In the aerospace sector, C-4 alloy is used to manufacture high-temperature components and structural parts to withstand extreme temperatures and pressures. In addition, C-4 alloy is also used in the manufacture of medical devices, electroplating equipment, pharmaceutical equipment, and other fields.
Overall, Hastelloy C-4 is a nickel-based alloy with excellent corrosion resistance and high-temperature strength, which is widely used in a variety of fields. Its development and application have made important contributions to the development of the field of materials science, and also provided reliable material guarantee for industrial production and engineering construction.