Sponge Iron is produced by the reduction of solid iron ore (that is removal of oxygen) and is a spongy mass of iron which is metallic in nature. The raw materials used for making sponge iron include iron ore pellets, dolomite and coal. It is mainly used as a substitute for scrap and it is processed to make wrought iron or to make steel following the secondary route.
It has high iron content and uniform quality. It also has low phosphorus and sulphur content and very low quantity dust is produced during its manufacture process. It is also easy to transport and handle and has low tramp element.