Graphite Electrodes
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Ultrahigh-Performance Electrodes – A New Dimension in Productivity Graphite Electrodes Broad Base. Best Solutions.

Carbon is Future. SGL Group – The Carbon Company. Carbon has unique properties. It is indispensable in the production of steel, aluminum and solar energy systems. Carbon increases the performance of wind turbines and reduces the weight of airplanes, cars and sports equipment. Carbon substitutes other materials and contributes to a reduction in CO2 emissions. SGL Group is one of the leading manufacturers of carbonbased products and has the broadest product and technology portfolio, a global sales network and state-of-the-art production sites in Europe, North America and Asia. Graphite &...

Moving Ahead with Steel The 2,460 m long Millau Bridge in southern France is the world's highest cable-stayed bridge, carrying the roadway at a height of 270 m From bridges several kilometers long to highly stress-resistant power station turbines, and from elegant high-rise buildings to ultralight car chassis – steel is the material used in any product where performance and reliability in particular impose high standards. Steel is the most versatile and widely used construction material in the world. Its high-tech properties can be tailored to specific applications by state-of-the-art...

A New Dimension in Productivity Made by SGL Group Innovations are the Driving Forces for Achieving Advances in Productivity SGL Group has developed and produced the world’s first 800-mm/32-inch graphite electrode. We have thus opened up a new dimension in productivity for both electric steel manufacturers and furnace builders. This provides attractive prospects for arc furnace operators to improve yields from their existing installations. Engineering companies will be able to take another step towards larger furnaces, there-by strengthening electric steelmaking technology. Peiner Träger...

DC furnace at Amsteel, Malaysia, equipped with 800-mm / 32-inch graphite electrodes made by SGL Group We support progress in our customer industries by providing innovative and improved products accompanied by value-added services. Electrode tips in an AC EAF DC furnace at Wei Chih, Taiwan

Value-Added Products and Services System Continuous Improvement with SGL Excellence Continuous Customer Value Creation SGL Excellence standardizes both methods and tools – supporting the evolution of a culture of continuous improvement at SGL Group. The SGL Excellence initiative has taken over and incorporated Total Quality Management (TQM). SGL Excellence focuses on four areas: People Excellence, Operational Excellence, Commercial Excellence, Innovation Excellence. Technical Competence In order to achieve operational and commercial improvements, SGL Excellence uses Six Sigma as the core...

SGL Excellence is intended to continuously create customer value by strengthening the competitiveness of the company.

Technology and Innovation Focus on Sustainable Solutions Analysis for pollution control (gas chromatography /mass spectrometry) Automated destructive testing of routine electrode samples for quality control From Needle Coke to Electric Steel Production Close and regular consultation with all customers and suppliers is necessary to optimize the cost-effectiveness of industrial processes. This is the only way to develop and market products with the maximum potential for value creation. We make active use of our global network of customers, furnace builders and engineering companies to set new...

Raw Materials and Production Our Know-How is Our Strength Mixing and extrusion Raw materials (primarily coke and binder pitch) are mixed together at an elevated temperature in order to create a homogeneous mass which is then extruded into the shape and size of the required end products. Baking, impregnation and rebaking The baking process “cokes out” the binder pitch, removing most of the volatiles and leaving a solid, non-deformable carbon body (amorphous carbon). It is followed by further impregnation and subsequent rebaking to improve density and other properties. Graphitization This...

Technical Competence Close to Customer The Technical Competence Center of SGL Group combines knowledge of material science, metallurgy and electrical engineering to support our customers in optimizing their processes. Our technicians are experts in the field, keeping constantly in touch with both the steel industry and furnace builders. Standard Assistance for Optimal Electrode Application ᭤ Monitoring of electric arc furnaces ᭤ Performance analysis ᭤ Consumption model ᭤ Calculations for productivity increase Our business is successful because of the competence of our employees From...

Sales and Distribution Competent and Reliable SGL Group's Sales Team Our team consists of highly qualified sales and technical experts. With many years' experience to draw on, all of them have first-hand knowledge of the steel industry and understand their customers' needs. Ultramodern communication systems ensure that the requirements generated by our international business are transmitted without delay to in-house services such as the Technical Competence Center and Supply Chain Management. Showing the way: our customers are welcome to visit our production lines and see the process from...

Properties and Characteristics Matching Your Needs Current-Carrying Capacity The graphite electrode load diagram shows mean values based on our experience. Precise evaluation is only possible under specific furnace conditions. Simulation left: Current density in bottom joint Graphite electrodes from SGL Group are designed for increased productivity and customer value. Our continuous improvements in material properties as well as increased dimensions provide the customer the benefit of applying higher current loads. The pioneer size of 800 mm / 32 inches has recently been successfully...

Mechanical Joining Procedure A sufficiently high and well-defined torque is essen- tial to ensure the proper performance of the electrode joint. For diameters exceeding 450 mm / 18 inches, mechanical joining with torque control by a hy- draulic assembly station or robot joining is highly