Electric resistance welding (ERW) is a welding process where metal parts in contact are permanently joined by heating them with an electric current, melting the metal at the joint. The continuity of the production o free email lists uk f ERW pipes according to the various diameters is gradually and continuously maintained in the welding standards. The demand for these pipes has risen exponentially in the recent years to a huge extent.
They are used in a diversified range of application in the railings, gravity flow, conveyors and several other mechanical and piping systems. Manufacturing Process of ERW pipes Electric resistance welded (ERW) are manufactured by cold-forming a sheet of steel into a cylindrical shape. Then current is passed between the two edges of the steel to heat the steel to a point at which the edges are forced together to form a bond without the use of welding filler material.