Electric Arc Furnace
What is an Electric Arc Furnace?
An Electric Arc Furnace (EAF) is a type of furnace that melts metals using high-intensity electric arcs from graphite electrodes. Commonly used in stainless steel manufacturing, it efficiently processes a charge mix of scrap steel and key alloys, such as nickel, chromium, and iron.
Importance of Electric Arc Furnace
Electric Arc Furnaces are central to sustainable stainless steel making, offering a cleaner, more circular path to stainless steel production.
- Enabler of Recycling: EAFs are key to using 100% scrap material in stainless steel production, reducing dependence on virgin raw materials.
- Lower Carbon Footprint: Compared to blast furnaces, EAFs significantly cut CO₂ emissions, making them critical to decarbonisation strategies.
- Scalable and Flexible: Their modular design enables batch processing, easy shutdown and startup, and integration with renewable energy sources.
Role of Electric Arc Furnace in Stainless Steel Production
In the stainless steel value chain, the Electric Arc Furnace is where the transformation begins, melting, refining, and enabling low-emission production.
- Melting Process: EAFs melt a mix of stainless steel scrap and alloying elements using electric arcs.
- Emission Reduction: Enables low-emission production by using electricity and recycled input materials.
- Refining Integration: Post-EAF, the molten metal moves to AOD vessels for composition tuning and quality control.