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Extruded graphite is made by pressing a fine graphite powder blended with pitch or another binder through a die under pressure. The resulting shape is then fired, impregnated, fired and graphitized at 2000C typically. Extruded graphite grain size is about 10 larger than Iso-graphite. It is more economical to produce and is used in many applications including electrodes for use in electric arc steel production. Skip to 2:10 on this video to see extrusion and the full process of making an electrode grade billet of extruded graphite. Many furnace hot zone parts including rails, heating elements, plates, shelves, and fastners can be made from extruded grades of graphite.