Monel400 is a nickel-copper alloy with strong resistance to seawater and chemical corrosion. It is used in ships and chemical equipment. It is mainly composed of nickel and copper, containing a small amount of iron and manganese, and has excellent corrosion resistance. It promotes industrial development and guarantees engineering projects, and has broad application prospects in the future.

Stainless steel contains a certain amount of chromium alloy elements, which will cause a strong oxide film to form on the surface of the steel, which is insoluble in certain media and isolates the metal from the external medium without chemical action. Therefore, it is less prone to rust than other steel grades, so the selection of alloy element composition is important.

Corrosion resistance of Monel 400:

Corrosion resistance is generally better than nickel copper. It is more resistant to reducing media than pure nickel and more resistant to phosphoric acid and carbon than pure copper. It is particularly resistant to hydrochloric acid and has excellent corrosion resistance to hot concentrated alkali. It has strong corrosion resistance to fluorine gas, hydrochloric acid and its derivatives. At the same time, it is more resistant to seawater corrosion than copper-based alloys.

Monel 400 is a deformable nickel-copper-based nickel alloy with excellent resistance to seawater corrosion and chemical attack as well as resistance to chloride stress corrosion cracking. This alloy is >resistant to most aqueous corrosive conditions, but not Monel 400. > The continuous operating temperature of Monel 400 in air is typically about 600 °C. The corrosion rate in hot steam is less than 0.026 mm/a. Due to its high nickel content, Monel 400 alloy resists corrosion in anhydrous ammonia and ammoniated conditions up to 585 °C.