Sponge iron is iron ore reduced directly in solid state using coal gasses, natural gasses or coke coal as reductants and is known as Directly Reduced Iron (DRI). It is a recognized alternative to Steel Scrap as a raw material for the manufacture of steel products. The process of making sponge iron aims at reducing oxygen levels in the raw iron ore. The quality of iron ore is determined by the amount of deoxidization performed. The final metallization percentage (ratio of metallic iron to the total iron) ascertains the grade of sponge iron.
At AMBA SHAKTI, we produce 200,000 tonnes of sponge Iron annually using coal based reduction techniques.