适用于圆柱形碳电极，由升级的 用于直接电弧炉和埋弧炉、熔炼硅和碳化物及其他用途的煤。 封面a）碳电极长度和直径的尺寸和公差b）碳电极头和插座的尺寸和螺纹细节。

Applies to cylindrical carbon electrodes, manufactured from upgraded coal, for use in electric direct-arc and submerged-arc furnaces, for melting silicium and carbide and for other purposes. Covers a) dimensions and tolerances on the length and diameter of carbon electrodes b) dimensions and thread details for carbon electrode heads and sockets.