Monel Alloy 400
Monel 400 contains 63% Ni and 28-34% Cu. It has a density of 8.80 g/cm³, a melting point of 1300-1350 °C, and a tensile strength of 550-700 MPa. It has high corrosion resistance and is applied in the fields of ocean, chemistry, oil and gas, electronics, and aerospace.
Chemical composition
Monel 400 is composed primarily of approximately 63% nickel, 28 - 34% copper, and small amounts of iron, manganese, carbon, silicon, and sulfur. Its typical chemical composition is as follows:
Nickel (Ni): 63%
Copper (Cu): 28 - 34%
Iron (Fe): maximum content of 2.5 percent
Manganese (Mn): maximum content of 2%
Carbon (C): maximum content of 0.3%
Silicon (Si): maximum content of 0.5 percent
Sulfur (S): 0.024% maximum content
Physical properties
Density: about 8.80g/cm³.
Melting point: range 1300 - 1350°C.
Thermal conductivity: 21.8W/m-K.
Specific heat: 0.427J/g-K
Mechanical properties
Tensile strength: 550 - 700MPa.
Yield strength: 240 - 345MPa.
Elongation: 20 - 35%
Corrosion resistance
Monel400 shows high corrosion resistance in many corrosive media, including:
Seawater: excellent corrosion resistance in marine environments, and can be used to manufacture marine engineering equipment such as desalination units, ship components and undersea exploration equipment.
Acidic and alkaline solutions: excellent performance in acidic environments such as hydrofluoric acid, hydrochloric acid and sulfuric acid, as well as alkaline environments, and are commonly used in equipment such as chemical reactors, heat exchangers, tanks and pipelines in the chemical industry.
Salt solutions and oxidizing media: It also has excellent corrosion resistance to various salt solutions and oxidizing media, and is used in the oil and gas field for manufacturing downhole equipment, pipelines and pressure vessels.
Application Fields
Marine engineering: Due to its excellent resistance to seawater corrosion, it is often used in the manufacture of marine engineering equipment, such as seawater desalination devices, ship components and undersea exploration equipment.
Chemical industry: excellent performance in acidic and alkaline environments, often used in chemical reactors, heat exchangers, storage tanks and pipelines and other equipment.
Oil & Gas: Used to manufacture downhole equipment, piping and pressure vessels during oil and gas extraction and transportation.
Electronic equipment: due to its corrosion resistance and good electrical conductivity, it is also used as electronic components and wire materials.
Aerospace: Under high temperature and pressure conditions, it is used to manufacture aircraft engines and other key components.
