which metal is most suitable for making lightning conductor and why? Share with your friends Share 0 Sandeep Kumar answered this Dear Student the electrical conductivity of the Copper=58.5×107 S/mElectrical conductivity of the Iron =10.1×107 S/mHence its clear we should use copper for the linghtneing conducor.But mostly we use iron because its cheaper than copper. Regards 0 View Full Answer Gokul Krishna Pandian answered this Copper makes the best lightning conductor 1 Driya answered this because it is agood cnductor of electricity 0 Driya answered this iron as good conductor of electricity 0 Shantanu Deshmukh answered this alluminium 1 Nishan Gowda answered this Copper which is very good conducter of heat and electricity. 2 Mahi answered this copper or iron 0 Sayan Nandy answered this All good conductors of electricity. 0