Bronze, the world’s first copper alloy, was born. Copper alloys have come a long way since and are now a key material in many applications, from LCD televisions and smartphone touchscreens ...

Thus an alloy of zinc 50, copper 49, was in hardness as compared with cast iron -604; while an alloy of copper 66, zinc 33, was only 472 in hardness. The fact was also eliminated that when the ...

This precaution is not necessary, unless the alloy contains a metal requiring a high temperature for its fusion, as, for instance, copper or iron. In alloys oontaining tin, however, a laler of ...