Corrosion is the deterioration of metal as the result of
chemical reactions and its surrounding environment. Corrosion can have a
variety of negative effects on metal.
Ultimately corrosion of a metal component can lead to the failure of the
component to function. There are a
number of different types of corrosion in metals. They include:
Nickel Aluminum Bronze Alloys are known their superior corrosion resistance in seawater and many other chemical environments. The corrosion resistant property relies on the formation of a copper/aluminum oxide film. This film is self-repairing in media containing even low levels of oxygen.
This oxide film provides the following benefits:
It adheres firmly to the surface of the
It has a resistance to liquid penetration
The hardness of the alumina content creates
higher resistance to erosion and abrasion
Nickel Aluminum Bronze alloys can be considered for service
in the following chemicals. Selection
must take into account the operational temperature, concentrations, service
conditions, and impurities.
Coal Tar Solvents
Dyestuffs, Acid Dyes
Oleic Palmytic Stearic Acid
Cane Sugar Liquors
Applications that utilized Nickel Aluminum Bronze Corrosion Resistance
Nickel Aluminum Bronze is used in the paper making industry,
where it comes into contact with low concentrations of hypochlorites and
bisulfites found in the pulp. It has
excellent corrosion resistance under these conditions and is used for beater
bars, valves and suction rolls.
Nickel Aluminum Bronze is used in the glass industry in the
frosting of glass, utilizing its corrosion resistance in hydrofluoric
acid. In this industry hydrofluoric acid
is sprayed through nickel aluminum bronze nozzles onto light bulbs.
Nickel Aluminum Bronze alloys C63000 AMS 4640, C95510 AMS 4880, C63020 AMS 4590, and C95520 AMS 4881 are used in landing gear bushings. The excellent bearing properties combined with the corrosion resistance in salt conditions during deicing of run ways in the winter make these alloys ideal for this application
Nickel Aluminum Bronze Alloys
Here at National Bronze Mfg. Co., we offer the following
Nickel Aluminum Bronze Alloys in both bar stock form and full machined