ccs wire (cable) 1. high tensile strength 2. low resistivity 3. corrosion proof from copper. Copper Clad Steel(CCS) Wire, a replacement for pure copper wire, is sorted into Flexible(A) and Hard(H). A combination of steel's high intensity and copper's high conductivity and resistance to corrosion, CCS wire has become a choice material for various industries such as communications, electric power, ...