The journey from iron ore and recycled scrap to finished steel bars relies on the electric arc furnace.
Understanding Raw Materials
Iron Ore Pathways: Modern arc furnaces process iron ore through Direct Reduced Iron at 85-92% metallic iron purity.
Recycled Scrap: Home, Prompt, and Obsolete scrap categories provide economical and eco-friendly feedstock.
The Five Phases of Arc Furnace Steelmaking
Phase 1 Preparation: Scrap sorted, shredded, and blended according to density principles.
Phase 2 Melting: Graphite electrodes strike arcs exceeding 3500 degrees Celsius within approximately 45 minutes.
Phase 3 Refining: Oxygen injection oxidizes C, Si, Mn, P impurities. Slag-forming fluxes absorb oxides.
Phase 4 Deoxidation and Alloying: Aluminum and silicon-manganese deoxidizers added. Alloying elements introduced per target grade.
Phase 5 Tapping: Furnace tilts pouring molten steel into pre-heated ladle.
Economic Advantages
Capital investment approximately 25-30% of equivalent integrated facility
CO2 emissions approximately 75% lower than BF-BOF route with 100% scrap feedstock
Closed-loop water cooling; 99.9% plus dust capture efficiency
Arc furnace-based bar production offers economic viability and ecological responsibility advancing together.
