What Is ERW Steel Pipe?

ERW steel pipe is manufactured by ERW technology. ERW has many advantages, such as high production efficiency, low cost, material saving and easy automation. It is an important welding technology, widely used in aviation, energy, power, automobile, light industry and other industries.


ERW steel pipe is made of hot-rolled coil plate, its wall thickness is uniform and controlled at ± 0.2mm. Both ends of the steel pipe shall be trimmed in accordance with the American APL standard, beveled and cut into a certain length. Or GB / t.1 standard. Compared with submerged arc welding process, ERW welding process does not add any welding materials, the weld is not in the hot-melt state, and the weld metal is recrystallized, so the weld formed is exactly the same as the base metal. After welding, the steel pipe will be annealed, the internal stress of cold forming and welding will be improved, so the comprehensive mechanical properties of ERW steel pipe is better.


ERW steel pipe is mainly used to transport oil, natural gas and other vapor-liquid objects to meet the requirements of high and low pressure. At present, it plays an important role in the field of world transportation. In recent years, ERW steel pipe has been widely used as the main gas pipe network