Bronze is an alloy consisting primarily of copper, commonly with about 12% tin
and often with .... Commercial bronze (90% copper and 10% zinc) and
architectural bronze (57% copper, 3% lead, 40% zinc) are more properly
regarded as brass ...
Copper alloys are metal alloys that have copper as their principal component.
They have high resistance against corrosion. The best known traditional types
are bronze, where tin is a significant addition, and brass, using zinc instead.