ERW steel pipe and SAW steel pipe,Technology

ERW is a electric-resistance welded steel pipe, Resistance welded steel pipe is divided into exchange of welded steel pipe and DC welded steel pipe in two forms. AC welding in accordance with different frequencies are divided into low-frequency welding, IF welding, welding of ultra-IF and high-frequency welding. High-frequency welding is mainly used for the production of thin-walled steel pipe or wall thickness steel pipe, high frequency welding into contact welding and induction welding. DC welding is generally used for small-diameter steel pipe. So, in terms of comprehensive, high-frequency welded pipe included in the ERW pipe is a high-frequency welding process to produce ERW pipes. ERW Longitudinal advanced product performance in the field of oil and gas storage and transportation, quality leadership, more economical steel pipe.

SAW steel pipes is short of Submerged Arc Welding Steel Pipe, which it is a use of submerged arc soldering process to manufacture steel, the process produces a very high current density, the flux layer to prevent the rapid loss of heat, and concentrated in the welding region. Submerged arc weld of high quality, high production efficiency, arc and smoke a few characteristics of submerged arc welded pipe is widely used in pressure vessels, pipe manufacturing, beams, low pressure fluid, steel works. The main products of the SAW steel pipes LSAW Steel Pipe, Longitudinally Submerged Arc Welding Steel Pipe LSAW steel pipe, it is the use of submerged arc welding production of straight seam steel pipe.