Furnace Electrodes 100-750mm

Graphite Electrode Product Parameters

Furnace electrodes spanning 100–750 mm in diameter are critical conductive components designed to deliver high-amperage current to industrial furnaces, enabling thermal processes like metal melting, refining, and temperature regulation. These electrodes are not limited to a single furnace type but serve diverse applications, including Electric Arc Furnaces (EAFs), Ladle Furnaces (LFs), and other high-temperature reactors such as electroslag remelting (ESR) units.

​​Core Uses​​:

•In EAFs, they generate electric arcs (up to 3,000°C) to melt scrap steel, direct reduced iron (DRI), or hot metal.

•In LFs, they sustain molten steel temperature (1,550–1,650°C) and facilitate electromagnetic stirring for chemical refinement (e.g., desulfurization).

•In ESR/VAR units, they provide controlled heat for refining alloyed steels or superalloys.

​​Design & Material Characteristics​​:

Furnace electrodes in this size range are typically fabricated from high-purity graphite (carbon content >99.5%, ash <0.5%) or carbon-graphite composites, chosen for their:

•​​Electrical Conductivity​​: Low resistivity (15–25 μΩ·m) minimizes energy loss during current transmission.

•Thermal Stability​​: Low thermal expansion (2–4 × 10⁻⁶/°C) prevents dimensional distortion under rapid heating/cooling.

•Mechanical Strength​​: Compressive strength >70 MPa and flexural strength >25 MPa withstand stacking weights (up to 6 electrodes, 3 meters long) and arc-induced stress.​