The erw pipes are electric resistant welded from either strips or coils in a longitudinal direction to add strength to the pipe. There are different dimensions and standards of these pipes. The erw schedule 40 pipe is a prominent choice among medium range schedules that allows medium range pressure containment of the pipes. Erw electric resistance welded pipes are welded longitudinally, Manufactured from strip / coil and has the power to being manufactured upto 24 od. Erw pipe cold formed from a ribbon of steel pulled through a set of rollers and shaped into a tube which is fused through a electric charge. Welded pipe is also called erw electric resistance welded pipe. Most common specification for welded steel pipe made from carbon materials is a53. Seamless pipe is crafted from a process that requires no welding. Most common specification for seamless carbon steel pipe is a106b. We have large stock of all grade erw pipe.