List of copper alloys

By contrast, tin is relatively rare (2 parts per million), and in Europe and the Mediterranean region, and even in prehistoric times had to be traded considerable distances, and was expensive, sometimes virtually unobtainable.

Historical types, such as those that characterize the Bronze Age, are vaguer as the mixtures were generally variable.

The following table outlines the chemical composition of various grades of copper alloys.

The zinc content can vary between few % to about 40%; as long as it is kept under 15%, it does not markedly decrease corrosion resistance of copper.

Copper is often alloyed with precious metals like gold (Au) and silver (Ag).