Moreover, ERW pipes exhibit excellent mechanical properties. The welding process produces a strong bond that enhances the overall strength of the pipe. Consequently, ERW pipes can withstand high pressures, making them suitable for various applications, including oil and gas transportation, construction, and infrastructure development. Their uniformity and consistency also allow for better quality control, making them a preferred choice for engineers and contractors.
4. Annealing Following the cold rolling process, the steel strips may require annealing. This heat treatment process relieves internal stresses that develop during cold rolling, restoring ductility and reducing hardness. The annealing process can be performed in a continuous furnace where the steel strip is heated and then gradually cooled.
