Carbon Electrode

Carbon Electrodes

Product Development

SGL Group has more than 100 years of experience in the manufacture of carbon electrodes. Over the years we have worked to increase the quality of our amorphous carbon electrodes.

In our technology and innovation center in Meitingen our continuous improvement efforts ensure that our electrodes meet the ever-growing requirements of our customers.

Composite und Soderberg

Additionally SGL Group is supplying Soderberg paste and Graphite Electrodes for the usage in composite furnaces. Based on the individual application we’ll find the right solutions that optimize the parameters of the furnace. SGL Group is the only supplier that offers one-stop the full product portfolio for the submerged arc furnace industry.

Carbon Electrodes for the production of silicon metal and phosphorus

Product Requirements

In order to ensure the best results, electrodes must have the following characteristics:

  • Good electrical conductivity, in order to withstand the high current density required by the metallurgical process
  • Good thermal conductivity, to minimize the temperature differences inside the electrodes when in use and, consequently, to reduce internal stresses
  • Good mechanical strength, to withstand the stresses when in use
  • High level of chemical purity, to avoid polluting the end product
  • A reliable joint, to ensure current flow continuity in the electrode column;
  • Easy mounting, to facilitate and speed up operations for the lengthening of the electrode column
  • Accurate machining on the external surface and on the joints, to avoid problems when the joint passes through the holding clamps and the contact shoes and to facilitate the current flow from one electrode to the following one

Nominal diameterNominal length (incl. Cone)Approx. Weight
mminchesmmincheskg
800 31 2800 110 2050
850 33 2800 110 2300
890 35 2800 110 2450
900 35½ 2800 110 2500
960 38 2800 110 2900
1018 40 2800 110 3150
1060 42 2800 110 3500
1146 45 2800 110 3850
3000 118 4150
3200 126 4500
1205 47 2900 114 4550
3100 122 4900
3300 130 5300
1272 50 2900 114 4550
3100 122 4900
3300 130 5300
1320 52 2900 114 5200
3100 122 5600
3300 130 6050
1400 55 3000 118 6110
3200 126 6600
3400 134 7050
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