Monel 400 is a nickel-copper alloy (about 23% Cu–67% Ni ) that is resistant to sea water and steam at high temperatures as well as to salt and caustic solutions. Alloy 400 is a solid solution alloy that can only be hardened by cold working.
Monel Alloy exhibits characteristics like good weldability, good corrosion resistance and high strength. A low corrosion rate in rapidly flowing brackish or seawater combined with excellent resistance to stress-corrosion cracking in most freshwaters, and its resistance to a variety of corrosive conditions led to its wide use in marine applications and other non-oxidizing chloride solutions. Monel alloy is particularly resistant to hydrofluoric and hydrochloric acids when they are de-aerated. As would be expected from its high copper content, alloy 400 is rapidly attacked by nitric acid and ammonia systems.
Monel 400® is a nickel-copper alloy that is hardened by cold working only. Monel 400® has low corrosion rate in flowing seawater, therefore it is widely used in marine applications. Monel 400® also has excellent resistance to stress corrosion cracking in most freshwaters. Monel 400® can be used in temperatures up to 1000 º F. The alloy has great mechanical properties at subzero temperatures.
M.B.Metal India specializes in available forms are Monel-400 Seamless Pipe, Monel-400 Welded Pipe,Monel-400 Seamless Tube,Monel-400 Welded Tube,Monel-400 Round Bars,Monel-400 Wire,Monel-400 Sheet,Monel-400 Plate, Monel-400 Forgings,Monel-400 Pipe Fittings and Monel-400 Flanges
Chemical Analysis of ALLOY 400 (UNS N04400)
|0.3 max||2.0 max||0.02 max||0.024 max||0.5 max||63.0 max||28-34 max||2.5 max|
|Sheet / Plate||ASME SB-127 / AMS 4544|
|Round Bar||ASME SB-164 / QQ-N-281|
|Pipe||ASME SB-165 / ASME SB-829 / ASME SB-775 / ASME SB-725|
|Tube||ASME SB-165 / ASME SB-163 / ASME SB-730 / ASME SB-751|
Mechanical Properties – Typical room temperature Tensile Properties of Annealed Material
|Product Form||Condition||Tensile (ksi)||.2% Yield (ksi)||Elongation (%)||Hardness (HRB)|
|Rod & Bar||Annealed||75-90||25-50||60-35||60-80|
|Rod & Bar||Cold-Drawn Stress Relieved||84-120||55-100||40-22||85-20 HRC|
|Tube & Pipe Seamless||Annealed||70-85||25-45||50-35||75 max *|