ERW pipe stands for Electric Resistance Welded, a type of welded pipe. The ERW process involves rolling steel plate into a circular tube, then using high-frequency resistance heating to melt the steel plates on both sides of the seam. The edges are then pressed together to form a weld. Its key feature is the elimination of filler wire or electrodes, achieving welding directly through high-temperature fusion.
ERW pipes offer high dimensional accuracy, excellent surface quality, and high production efficiency, with manufacturing costs significantly lower than seamless steel pipes and LSAW pipes. Common standards include:
What Is the OCTG Hierarchy? Complete Structure of OCTG System
2026-05-29
In the modern oil and gas industry, OCTG (Oil Country Tubular Goods) is one of the most critical tubular systems used in oil well drilling, cementing, and production. While many