Ncoloy825 alloy is a Ti stabilized Ni-Fe-Mo-Cu corrosion resistant alloy, alloy has effective resistance to uniform corrosion and local corrosion performance, and good performance, coupled with good alloy toughness, in the atmosphere is also good generally used in chemical processing industry, hot sea water and hydrometallurgy, It is mainly used to deal with heat exchanger, pipe, valve, water pump and so on in the environment of hot sulfuric acid, chloride-containing solution, sulfite, etc. It is also widely used in the field of wood pulp extracter and deep source gas well in the papermaking industry.

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When alloying elements are added to steel, iron and carbon, the basic components of steel, interact with alloying elements. The purpose of steel alloying is to improve the microstructure and properties of steel by the interaction of alloying elements with iron and carbon and the influence on the phase diagram of iron and carbon and the heat treatment of steel.