metals do not contain iron and are not magnetic ... gold coloured and darkens when oxidised with age An alloy of copper and zinc, can be cast and machined, used for musical instruments and ...

Cast iron contains high levels of carbon ... craftsmen to construct sturdier bridges and higher buildings. Adding alloys to steel yield higher strength, more wear-resistant metals.

Sarytogan Graphite has developed a premium ductile cast iron produced from graphite from its Kazakh mine, opening the door to a new high-volume, high-margin market.