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.
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