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Graphite electrodes are the main heating element used in an electric arc furnace, a steelmaking process where scrap from old cars or appliances is melted to produce new steel.
Graphite electrodes are mainly made of petroleum coke and needle coke as raw materials, coal tar pitch as a binder, and are made by calcination, batching, kneading, pressing, roasting, impregnation, graphitization, and machining.
Graphite electrodes can be divided into RP graphite electrodes, HP graphite electrodes, and UHP graphite electrodes according to their quality indicators.