is a copper alloy typically composed primarily of copper (Cu) and no more than 9% tin (Sn) but sometimes with other elements such as phosphorus, manganese, aluminum, or silicon are additives.  Bronze is harder than brass and has a lower luster.

With the exception of steel, bronze is superior to iron in nearly every application. Although bronze develops a patina, it does not oxidize beyond the surface. It is considerably less brittle than iron and has a lower casting temperature.

 

Also see brass.