ERW (Electric Resistance Welded)
/glossary/erwPipe formed by rolling steel strip and welding the seam using electric resistance heat.
In detail
Electric Resistance Welded (ERW) pipe is manufactured by cold-forming a flat steel strip into a cylindrical shape and welding the longitudinal seam using high-frequency electric resistance heating. The process is continuous, fast, and produces pipes from 15 mm to 500 mm OD with consistent dimensions. ERW is the most cost-effective method for water, gas, structural, and general engineering applications up to ~10 bar pressure, governed by IS 1239 and ASTM A53 standards in India.
Where you'll meet this in procurement
You will meet ERW (Electric Resistance Welded) when choosing process route and product family. Match ERW (Electric Resistance Welded) to pressure, temperature, corrosion duty, and standard (IS, ASTM, ASME, or API) so the mill route and documentation line up with the application.