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Classification of corrosion-resistant alloys
Release time:
Nov 02,2024
Iron-based alloys: alloys in which iron is the main element, such as stainless steel. Stainless steel has good corrosion resistance, especially to atmosphere, water and general acid corrosion. Among them, austenitic stainless steels such as 304 and 316L have strong corrosion resistance, while duplex steels such as 2205 and 2507 have better corrosion resistance and strength. Nickel-based alloys: alloys with nickel as the main element, such as Ni-Cr alloys, Ni-Cr-Mo alloys, Ni-Cu alloys and so on. Nickel-based alloys have excellent corrosion resistance, especially in strong reducing corrosive environments, complex mixed acid environments and solutions containing halogen ions. Among them, Hastelloy is one of the representatives of nickel-based corrosion-resistant alloys with extremely high corrosion resistance and strength. Reactive metals: such as titanium, zirconium and tantalum. These metals have excellent corrosion resistance and provide protection mainly through the formation of a dense oxide film in an oxidising atmosphere. However, they cannot usually be used in highly reducing or hermetically sealed corrosive environments and are generally applied at temperatures less than 300 degrees Celsius.
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