Ships and offshore structures often use copper alloys in seawater applications for their corrosion resistance and durability. Tanks, piping, propellers and platform supports are often made from copper alloys.
Musical instruments use copper alloys for sound clarity and long life. In addition to a pleasing appearance and sound, copper alloys can be used to make very intricate shapes and components.
Coinage is made from copper and copper alloys in the United States and many countries worldwide.
We do not always see the copper alloys in use but they are there working for us.