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Graphite electrodes are used for electric arc furnaces, ladle furnaces and submerged arc furnaces. After being energized in the EAF steelmaking, As a good conductor, it is used to generate an arc, and the heat of the arc is used to melt and refine steel, non-ferrous metals and their alloys. It is a current good conductor in the electric arc furnace, does not melt and deform at high temperatures, and maintains a specific mechanical strength. There are three types: RP 、HP, and UHP graphite electrode.