Monday, March 13, 2017

Steel 101: ERW Mills

Steel 101: ERW Mills

Electric resistance welding, or ERW, is a welding process that manufactures steel by cold-forming sheets into, round, square, rectangular, octagon and several other shapes and sizes. The end result of the ERW pipe and tube process produces material that can be used for many engineering purposes.

At Kahn steel, our finished goods have gone into a variety of applications; we primarily produce material for; fences, gates, panels, feedlots, and corrals. Furthermore, we have manufactured material used for constructing arenas and solar panels. Other common finished goods produced by ERW mills can be found in structural applications such as bollards and foundation repair.

The ERW pipe making process starts with coiled steel. This material has an appropriate thickness, and specific width, to form into pipe that molds to its relevant specifications. The slit gets pulled through a machine where a series of rollers gradually shapes the steel into a cylindrical tube. The edges of the tube now form a cylinder as it comes together. At this point, an electric charge is applied at the appropriate spots which heat the edges so they can be welded together. The process is high-speed and gets made in continuous lengths.


Contact us today to get your tube rolled to length and packaged to your specifications.