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Graphite Electrodes

Graphite electrodes carry the electricity that melts scrap iron and steel (and sometimes direct-reduced iron: DRI) in electric arc furnaces, which are the vast majority of steel furnaces. They are made from petroleum cokeafter it is mixed with coal tar pitch. They are then extruded and shaped,baked to crbonize the binder. and finally graphitized by heating it to temperatures approaching 3000 D.C., at which the carbon atoms arrange into graphite. They can vary in size up to 11ft. long and 30 in. in diameter.An increasing proportion of global steel is made using electric arc furnaces,and the electric arc furnace itself is getting more effcient,making more steel per tonne of electrode.



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