C22 (N06022) Hastelloy alloy, material number 2.6402, is a nickel-based high-temperature alloy composed of nickel, molybdenum, cobalt, and tungsten, with a nickel content of approximately 60%. It is an all-purpose nickel-chromium-molybdenum-tungsten alloy with better overall corrosion resistance than other available nickel-chromium-molybdenum alloys, including Hastelloy C-276, C4 alloys, and 625 alloys.Hastelloy C22 alloy has excellent resistance to pitting, crevice corrosion, and stress corrosion.
Hastelloy C22 alloy has a wide range of applications in a variety of industries, including chemical processing, pollution control, pulp and paper production, waste treatment and pharmaceuticals. It is particularly suitable for applications in harsh environments exposed to acids, chlorides and other corrosive media. Hastelloy C22 alloy is commonly used in equipment such as reactors, heat exchangers and piping systems in chemical plants and refineries.
The excellent corrosion resistance of Hastelloy C22 alloy is provided by its high nickel and molybdenum content, which provides resistance to a wide range of corrosive media. The addition of tungsten and cobalt further enhances its resistance to localized corrosion and erosion. In addition, the alloy’s low carbon content reduces the risk of sensitization and intergranular corrosion.
Hastelloy C22 alloy is an extremely versatile and corrosion-resistant material with a wide range of applications in various industries. Its high nickel and molybdenum content provides excellent resistance to a wide range of corrosive media including acids, chlorides and other harsh environments. The addition of tungsten and cobalt further enhances its resistance to localized corrosion and erosion.
One of the key benefits of Hastelloy C22 alloy is its excellent resistance to pitting and crevice corrosion. Pitting corrosion is the formation of small holes or pits on the surface of a material, leading to localized corrosion. Crevice corrosion, on the other hand, occurs in narrow gaps or crevices where the corrosion process is centralized. Hastelloy C22 alloy’s resistance to these types of corrosion makes it ideal for use in applications where the material is exposed to harsh environments.
Hastelloy C22 alloy also has excellent resistance to stress corrosion cracking (SCC), a type of corrosion that occurs under tensile stress. SCC can lead to sudden failure of components, making it a serious concern in applications where the material is subjected to stresses. Hastelloy C22 alloy’s resistance to SCC makes it an ideal choice in high-stress applications.
In addition to its corrosion resistance, Hastelloy C22 alloy is known for its high-temperature strength and excellent machinability. It can be easily formed, welded and machined, making it a versatile material for a variety of applications.
Overall, Hastelloy C22 alloy is a very reliable and durable material with excellent corrosion resistance and high temperature strength. Its versatility and resistance to a wide range of corrosive media makes it ideal for a variety of applications in industries as diverse as chemical processing, pulp and paper production, and waste treatment.
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Post time: Aug-12-2023
