Patent ID: 6424671
Filing Date: 2002-07-23
Classification: C21B,C21C,Y02P

Abstract:
A process for making steel in an electric arc furnace using molten high carbon ferrous metal as a part of a charge mixture, the process comprising the steps of:a. providing a molten charge which is a melt comprised of a high carbon ferrous metal in the electric arc furnace by one of preparing the melt in the electric arc furnace or introducing the melt into the electric arc furnace, the high carbon ferrous metal comprising less than 3% carbon, less than 0.2% silicon, and less than 0.2% manganese, and the melt having a temperature of at least 1375Â° C.; b. adding to the molten charge provided in the electric arc furnace a solid metallic charge comprised of least one material selected from the group consisting of scrap steel, hot briquetted iron, direct reduced iron, and iron ore to provide a charge mixture; c. refining the charge mixture by melting the charge mixture in the absence of gaseous oxygen to provide a molten steel; and d. superheating, finishing and tapping the molten steel into a ladle for subsequent casting thereof.