The major copper alloys exploited in antiquity include:
Cu-Sn-Pb, Cu-Sn-Sb, Cu-Sn-Zn, Cu-As-Sn
The above alloys plus other minor elements, e.g. Ag, Au
Methods of Working
Casting - alloys used in the as-cast condition with minor finishing, e.g. grinding
off of casting flash.
Hot and Cold working - the manipulation of alloys to manufacture sheet, wire etc.
SEM-BSE Micrograph showing dendritic structure of 10% as-cast Sn Bronze.
Silver like Romano-British copper alloy artefact, excavated by West Yorkshire Archaeological
Coloured SEM BSE Image of the high Sn, Zn copper alloy (red corroded interdendritic,
blue cored dendrites Cu-Sn-Zn). Source Author