: High-purity oxygen is blown onto molten iron (often with some scrap). This oxidizes the excess carbon (dropping it from ~4% to below 1%) and other impurities.
: In a Blast Furnace (BF) , these materials are heated. Coke acts as both a fuel and a reducing agent, removing oxygen from the iron ore to produce molten iron (or pig iron). Fundamentals of Steel Making
This stage transforms molten iron or scrap into crude steel by reducing carbon content and removing further impurities. : High-purity oxygen is blown onto molten iron
Once the crude steel is produced, it undergoes to achieve precise chemical specifications. coke (processed coal)
The journey begins with three primary ingredients: , coke (processed coal), and limestone .