Erw Pipes By Spark Electrodes Pvt. Ltd.

These ERW pipes and tubes are offered in 4 inch size (10.2 mm) with OD and below, wherein the strip is fed into a set of forming rolls. The roll comprises horizontal and vertical rollers so placed as to gradually from the flat strip into a tube. This further allows to pass the welding electrodes. The copper disks type electrodes are connected to the secondary of a revolving transformer assembly. This helps to make contact on each side of the seam and temperature is raised to the welding point. Further, the outside flash is removed as the tube leaves the electrodes and the inside flash is wiped out by an air hammer or by passing a mandrel through the welded tube, after the tube has been cooled. This formation is known as Electric Resistance Welded or ERW Tube/Pipe.

Based on the end user customer's requirement, ERW (electric resistance welded ) steel pipes and tube are available in various qualities, wall thicknesses, and diameters of the finished pipes. While manufacturing ERW steel pipes, only high-quality, continuous-cast, fully killed, control-rolled, fine-grain, low-carbon steel is used. High performance ERW steel pipes and tubing possess high strength corrosion resistance, high deformability, high strength and high toughness.