ERW Pipe Mill (high frequency inductive Welding)


This mill produces pipes with length up to 18 m. with 8 to 24 in. diameters and up to 20.6 mm. thickness. Pipes produced in this mill are in accordance with international standards such as API 5L, ISO 3183 and customer requirement such as: IPS-M-PI-190 In production processes, steel strip in form of coil are put at the beginning of feed line and irregular end of coils are cut & welded. Following to milling of longitudinal edges of coil, strip surface is tested by ultrasonic and strip edges are welded by high frequency inductive welding (HFI). While moving through automated ultrasonic system (to indicate welding faults), longitudinal welding seam is heat treated and pipes are cut in required length. Then pipe ends circumference is controlled by ultrasonic system and are beveled. Then pipe is tested by hydrostatic machine and finally pipe longitudinal welding is tested by ultrasonic and after weighing and marking can be delivered to the customer.
According to market demand it is also possible to produce heavy profiles in square and rectangular forms with maximum dimensions of 500×500 mm. and 600×400 mm. These products are produced in accordance with international standards such as EN 10219.