Chemical Composition

Physical properties

Metallographic Structure

Monel 400 is a High strength single phase solid solution

Corrosion Resistance

acid and their derivatives. At the same time, it is more resistant to corrosion in seawater than copper-based alloys. Acid medium: Monel 400 is corrosion resistant in sulfuric acid with a concentration of less than 85%. Monel 400 is one of the few materials that are resistant to hydrofluoric acid. Water Corrosion: Monel 400 alloy has excellent corrosion resistance in most water corrosion conditions, and pitting corrosion, stress corrosion, etc. are rarely found, and the corrosion rate is less than 0.025 mm/a. High temperature corrosion: The maximum temperature for continuous operation of Monel 400 in air is generally around 600 °C. In high temperature steam, the corrosion rate is less than 0.026 mm/a. Ammonia: Due to the high nickel content of Monel 400 alloy, it can withstand corrosion under anhydrous ammonia and ammoniation conditions below 585 °C.

1, Seamless water pipes and steam pipes in power plants                               
2, Sea water exchanger and evaporator                                                          
3, Sulfuric acid and hydrochloric acid environment                                     
4, Crude oil distillation                                              
5, Pump shaft and propeller for use in seawater equipment                                               
6, Equipment used in the nuclear industry for the manufacture of shaft refining and isotope separation                                 7, Manufacturing pumps and valves for the production of hydrochloric acid equipment