Alloy Code CuZn40Pb1 Specification > 10.0 mm > 3.5 - 10.0 mm > 2.0 - 3.5 mm <= 2.0 mm Coil Weight - 70 - 80 kg 65 - 75 kg 40 -50 kg Bundle Weight 30 - 40 kg 30 - 40 kg 30 - 40 kg 20 - 30 kg Mechanical Property Fine property of presswork and machinework , high corrosion - resistance and electric conductivity. Application All industrial instrument components , clock and lock balls , bolts and nuts .