Srikalahasthi Pipes Limited is engaged in the manufacture and supply of ductile iron (DI) pipe. The Company offers public utility services for water infrastructure development. It also produces low ash metallurgical (LAM) coke, sinter liquid metal and power for captive consumption in its integrated complex. In addition, it manufactures and supplies cement and pig iron. Its DI pipes are supplied to various water boards, municipal corporations, military engineer services, railways and contractors across the country for their water infrastructure projects. It offers DI pipes in a range of coatings and linings, including internal lining, which consists of cement mortar lining with Portland Slag cement or Sulfate resisting cement; external coating, which consists of metallic zinc coating with finishing layer of Bituminous Coating, and other linings and coatings, such as High Alumina Cement mortar lining, and Epoxy Coating and Polyethylene Sleeves.