Monel four hundred may be a nickel-copper alloy (about sixty seven metal – twenty third Cu) that's immune to ocean water and steam at high temperatures also on salt and caustic solutions. Alloy four hundred may be a solution alloy that may solely be hardened by cold operating. This...
Monel four hundred may be a nickel-copper alloy (about sixty seven metal – twenty third Cu) that's immune to ocean water and steam at high temperatures also on salt and caustic solutions. Alloy four hundred may be a solution alloy that may solely be hardened by cold operating. This nickel-base alloy exhibits characteristics like sensible corrosion resistance, sensible weldability and high strength. a coffee corrosion rate in apace flowing briny or saltwater combined with wonderful resistance to stress-corrosion cracking in most freshwaters, and its resistance to a spread of corrosive conditions junction rectifier to its wide use in marine applications and alternative non-oxidizing chloride solutions. This nickel-base alloy is especially immune to hydrochloric and hydrofluoric acids once they square measure de-aerated. As would be expected from its high copper content, alloy four hundred is apace attacked by acid and ammonia systems.
Monel four hundred has nice mechanical properties at subzero temperatures, is utilized in temperatures up to 1000° F, and its temperature is 2370-2460° F. However, alloy four hundred is low in strength within the hardened condition therefore, a spread of tempers is also accustomed increase the strength.
Chemical Composition, %
|.30 max||2.00 max||.024 max||.50 max||63.0 min||28.0-34.0||2.50 max|
|Pipe Smls||Pipe Welded||Tube Smls||Tube Welded||Sheet/Plate||Bar||Forging||Fitting||Wire|
Typical room temperature Tensile Properties of Annealed Material
|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 *|
*The ranges shown area unit composites for numerous product sizes and so don't seem to be appropriate for specification functions. Hardness values area unit appropriate for specification functions provided tensile properties don't seem to be additionally fixed..
Alloy four hundred physical object
*Alloy four hundred is slightly magnetic at temperature.
*This alloy contains a long history of use as a corrosion resistant material, qualitative analysis back to the first twentieth century once it absolutely was developed as an endeavor to use a high copper content nickel ore. The nickel and copper contents of the ore were within the approximate quantitative relation that is currently formally fixed for the alloy.