Ø  Description：The
electrodes carry the electricity that heats electric arc furnaces, the vast
majority steel furnaces. They are made from petroleum coke after it is mixed
with petroleum pitch, extruded and shaped, then baked to sinter it, and then
graphitized by heating it above the temperature (3000 °C) that converts carbon
to graphite. They can vary in size up to 11 ft. long and 30 in. in
diameter.

Ø  Usage: An
increasing proportion of global steel is made using electric arc furnaces, and
the electric arc furnace itself is getting more efficient and making more steel
per tonne of electrode