Section 2 of this Standards Publication covers lengths and diameters of cylindrical manufactured graphite and carbon electrodes for use in all types of electric arc furnaces. Section 3 covers thread design@ sizes@ and other pertinent details of the joining systems of cylindrical manufactured graphite and carbon electrodes most commonly used in electric arc furnaces. Throughout this publication@ the values stated in metric units are to be regarded as the standard. NOTE??The conversion factor from mm to inches is 25.4 mm per inch.