Copper nickel aluminum alloy
OwnerShau-Kuan Chiuinventor
Life of this patent
Estimating the term…
Abstract
An alloy including at least 6 weight percent aluminum, greater than 6 weight percent nickel, and at least 50 weight percent copper. In some embodiments, the alloy includes 6 to 9 weight percent aluminum, 6 to 11 weight percent nickel, 1.5 to 3 weight percent iron, 1.5 to 3 weight percent manganese, 1 to 3 weight percent silicon, 1 to 5 weight percent tin, and 75 to 80 weight percent copper. The alloy is particularly suitable for jewelry, e.g., wrist watches, and materials exposed to aquatic environments for extended periods of time, e.g., boat hulls and boat propellers.
Claims20
An article of jewelry comprising an alloy, the alloy comprising at least 6 weight percent aluminum, greater than 6 weight percent nickel, and at least 50 weight percent copper.
An alloy comprising at least 6 weight percent aluminum, greater than 1.5 weight percent manganese, greater than six weight percent nickel, and at least 50 weight percent copper.
A boat comprising an alloy comprising:
- at least 6 weight percent aluminum,
- greater than 6 weight percent nickel,
- at least 3 weight percent iron, manganese, or a combination thereof,
- at least 1 weight percent silicon,
- at least 1 weight percent tin, lead, or a combination thereof, and
- a balance of copper, wherein the alloy comprises less than 5 weight percent, in sum, of any other element.
Dependencies are inferred from the claim text.