Welded pipe starts out as a long, coiled ribbon of steel called a skelp. The skelp is cut to the desired length, resulting in a flat rectangular sheet. The width of that sheet’s shorter ends will become the pipe’s outside circumference, a value that can be used to calculate its eventual outside diameter.
The rectangular sheets are fed through a rolling machine that curls the longer sides up toward one another, forming a cylinder. In the ERW process, high-frequency electrical current is passed between the edges, causing them to melt and fuse together.
An advantage of ERW pipe is that no fusion metals are used and the weld seam cannot be seen or felt. That’s opposed to double submerged arc welding (DSAW), which leaves behind an obvious weld bead that must then be eliminated depending on the application.
Lenghts can also be supplied based on requirements
Carbon, Low-Alloy, stainless steel, duplex, nickel-alloy, etc
Plain Ends (PE), Threaded Ends (TE), Beveled Ends
In Business since over 50 years, City Cat International is on the forefront of pipe and pipe fittings innovation, partnering with our clients to build new, high customized solutions to move the oil and gas industry forward. We hold ISO 9001 registration for our operations, which confirms our rigorous quality management system. As an industry leader in supply and export, City Cat International is one of the top groups in the nation of offering products of high range and excellent quality as per API 5CT specifications. City Cat group is driven only towards client’s satisfaction and delivering quality products to clients worldwide.