Spiral welded pipe production by Submerged Arc Welded method is based on using tandem welding technique for joining inside and outside coil edges, which have been trimmed and bevelled by carbide milling for high quality weld structure. Welding of hot rolled steel coils takes spiral form after passing through pre-forming and forming rolls. Excellent exterior weld quality at high production speeds is provided by double submerged arc welding process. Manufactured pipes are cut to the desired lengths at the exit of the pipe machine. Pipe ends are bevelled by means of carbide machining for accurate on-site welding.
