Low cement castables are finding wide use in high temperature application in various industries like steel, foundries, aluminium, cement, ceramic, petrochemical etc. The high alumina based LCC, ULCC are generally used for manufacturing different types of furnace like soaking pit, end pusher etc in steel industry. In the present paper, attempts have been made to compare various high alumina aggregates in making low cement castables for different applications in iron and steel industries.