This factory which was put into operation in 2002 produces pipes up to 16 m long to be used in water supply lines and industrial foundations, 20-20” in diameter and 25.4 mm thick according to standard AWWA C200 plus complementary demands of clients. The capacity of this factory is 75,000 tons per year.

In the production process of this factory, steel coil is first placed inside the machine, irregular parts at the two ends of the coil are cut and then it is welded to the end of the previous coil by using SAW process. Then, the edges on both sides of the sheet are continuously milled to make it ready for welding. Final shape of the pipe is achieved while the sheet passes through the forming rollers. Simultaneous to forming, the spiral seam of the shaped sheet is continuously made from inside and outside through Submerged Arc Welding (SAW) process and the pipe is cut at the intended length. Then, the two ends of the pipe are beveled by a special milling machine and are tested by hydrostatic pressure based on standard criteria. In the final stage, the pipe is inspected in view of dimensional specifications and other standard criteria and the necessary controls are made and the pipe is finally sent to the warehouse.