Straight Seam 8 Inch Hollow Section Steel Tube Carbon Steel

Straight Seam Welded Steel Pipe Structural Use Carbon Steel ERW Steel Pipe

Modern ERW steel tube production process and equipment, because of the international, especially the United States and other years of unremitting efforts, so that the seamless ERW steel tube has been a relatively satisfactory solution.Due to the use of hot rolled coil as raw material, the wall thickness of ERW steel pipe can be controlled within ±0.2mm or so, the two ends of the steel pipe are in accordance with the American APL standard or GB/T9711.1 standard, the end is repaired and beveled, and the delivery length is fixed.

In recent years, various natural gas pipeline engineering and gas companies have widely adopted ERW steel pipe as the main pipe of urban pipeline network.Pipeline pipe is also a wire pipe, relatively thin, with "T", can only be used for threading. ERW pipe is "high-frequency resistance welded steel pipe", and the welding process is not the same as the ordinary welded pipe, the weld is melted by the base metal of the steel strip body, the mechanical strength is better than the general welded pipe.

ERW stands for resistance welding, resistance welding has high production efficiency, low cost, material saving, easy automation and other characteristics, so it is widely used in aviation, aerospace, energy, electronics, automobile, light industry and other industrial sectors, is one of the important welding process.Modern ERW steel tube production process and equipment, because of the international, especially the United States and other years of unremitting efforts, so that the seamless ERW steel tube has been a relatively satisfactory solution.Someone divides the ERW steel tube seamless into geometric seamless and physical seamless.Geometric seamlessness is to remove burrs from the inside and outside of the ERW steel tube.