Copper is a reddish-yellow material and is extremely ductile .
The thermal conductivity of copper is very high falling in between silver and gold. Cast Copper Alloys Cast copper alloys generally have a great range of alloying elements than wrought alloys because of the nature of the casting process. Wrought Copper Alloys Wrought alloys produced in a variety of different methods, including annealed, cold worked, hardened by heat treatments, or stress relieved.