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ERW Pipe Manufacturing Process

ERW pipes are manufactured starting from steel coils, that are at first uncoiled, cut, processed, welded and tested as shown in the picture below.


The most common welding technique used for oil and gas pipes is the so-called “high-frequency induction technology” (ERW-HFI), consisting in the application of an induction current on the outer surface of the pipe able to generate a robust seam weld and join the two sides of the steel coil very tightly.