copper tungsten bar diameter : 1.5-100mm length :50-1000mm density :12.6-17.05 g/cm3 composition : W55-90% Cu bal copper tungsten ... pressed compact at a high temperature , and infiltrate it with copper , all this is fone under very closely controlled condtions . The ... of alloy ,if you have need ,please contact us ,.thanks copper tungsten bar , coppertungsten alloy ...