Hastelloy is a type of nickel-based alloy. It is currently divided into three series: B, C, and G. It is mainly used for highly corrosive materials such as iron-based Cr-Ni or Cr-Ni-Mo stainless steel and non-metallic materials that cannot be used. In media applications, it has been widely used in many fields such as petroleum, chemical industry, and environmental protection abroad.
Mainly resistant to wet chlorine, various oxidizing chlorides, chloride salt solutions, sulfuric acid and oxidizing salts, and has good corrosion resistance in low and medium temperature hydrochloric acid.
Therefore, in the past thirty years, it has been widely used in harsh corrosive environments, such as chemical industry, petrochemical industry, flue gas desulfurization, pulp and paper making, environmental protection and other industrial fields. Originally, Hastelloy was developed for corrosion in HCL applications.