Product Name: MONEL400\UNS N04400
General International Name: MONEL alloy400,UNS N04400,NiCu30Fe W-Nr:2.4360,Nicorros-alloy400,ATI400,,NAS NW400
Enforcement criteria: ASTM B127/ASME SB-127,ASTM B163/ASME SB-163,ASTM B165/ASME SB-165
主要成分:碳(C)≤0.30,镍(Ni)≥63.0,硅(Si)≤0.5,硫(S)≤0.024,铁(Fe)≤2.5,锰(Al)≤2.0,铜(Cu)28.0~34.0
Physical properties: density :8.9 g/cm3, melting point :1300-1350℃, magnetism: nil
Mechanical properties: tensile strength :σb≥480 Mpa, yield strength σb≥195 Mpa: elongation :δσb≥35, hardness; HB135-179
Corrosion resistance and main operating environment:
Monel400 corrosion resistance is generally better than nickel copper, it is more resistant to the corrosion of reductive medium than pure nickel, corrosion resistance to sulfuric acid, phosphoric acid, carbon is very good. Especially the corrosion resistance of hydrochloric acid also has excellent corrosion resistance to thermal concentrated alkali. Monel400 alloys have excellent corrosion resistance in fluorine, hydrochloric acid, sulfuric acid, hydrofluoric acid and their derivatives. At the same time, it is more corrosion resistant than copper based alloy in seawater.
Monel400 is a deformable nickel-copper nickel-based alloy with good resistance to seawater corrosion and chemical corrosion, and strong resistance to chloride stress corrosion cracking. The alloy is one of the few alloys that can be used in fluoride. It has good resistance to oxide stress fission corrosion in hydrofluoric acid and fluorine medium, such as seawater and brine environment.
Monel 400 also have very good corrosion resistance in medium concentrations of alkaline and salt solutions.
In cold alkaline environment, the alloy is used in weak acid such as sulfur, hydrogen fluoride environment.
Acid medium: Monel400 are corrosion resistant in sulfuric acid with concentration less than 85%. Monel400 is one of the few important materials for hydrofluoric acid resistance.
Water corrosion: Monel400 alloys in most water corrosion conditions, not only excellent corrosion resistance, but also pore corrosion, stress corrosion and pore corrosion, stress corrosion and so on. The corrosion rate is less than mm/a.0.025
High temperature corrosion: the maximum temperature for continuous operation of Monel400 in air is generally about 600℃. In high temperature steam, the corrosion rate is less than mm/a.0.026 Ammonia: due to the high nickel content of Monel400 alloy, it can resist corrosion under the condition of anhydrous ammonia and ammoniation below 585℃.
Supporting welding materials and welding process: the welding of MONEL400 alloy is recommended to adopt AWS A5.14 wire ERNiCu-7 or AWS A5.11 electrode. The size of welding material is: American SMC and German nickel, welding process and instruction are welcome to call for.
Inventory: MONEL400 alloy plate inventory spot size 0.8 mm-12mm,MONEL400 alloy bar inventory spot size Φ12mm-Φ220mm, pipe fittings and other can be customized according to customer requirements. The main sources of materials are Japanese metallurgy, the United States SMC、 Germany ThyssenKrupp VDM. Provide original factory material certificate, customs declaration and certificate of origin.
Applications include: sulphuric acid and hydrofluoric acid equipment, marine heat exchanger, desalination equipment, salt production equipment, marine and chemical processing equipment, propeller shaft and water pump, gasoline and water tank.