1. Chargingwith a mixture of metal and lime.
2. Melting the metal and scrap using electric arcs from the graphite electrodes. After this some more lime is added to clear out the oxides in the next step.
3. Blowing with oxygen to oxidise elements such as carbon, silicon and manganese in the scrap metal. As in the BOS furnace, carbon monoxide escapes as a gas. The oxides of the other elements are acidic and combine with the basic lime to make a neutral slag, which is poured off the surface.
4. Tappingthe metal itself by running it out through the furnace spout into a ladle. The liquid in the ladle is now ready for secondary steelmaking and casting. Further treatments of the metal from the EAF take place in much the same way as steel from the BOS plant.