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Close up of SpiralWeld® Overlay Close up of SpiralWeld® Overlay. Spiral welding is a process where a continuous full penetration metal inert gas weld overlay is used to rebuild damage from wear, erosion, corrosion or cracking, or to increase the dimensions of a component to match an increased dimension on a mating part.
In 2000, American opened American SpiralWeld Pipe Company in Columbia, South Carolina, diversifying its product line to include spiral-welded steel pipe in diameters up to 144 inches (3,700 mm). In 2015, American began operations at a new spiral-welded pipe production facility in Flint, Michigan. A third facility opened in Paris, Texas, in 2021.
The most common process pipe joint is the butt weld. The ends of pipe to be welded must have a certain weld preparation called an End Weld Prep (EWP) which is typically at an angle of 37.5 degrees to accommodate the filler weld metal. The most common pipe thread in North America is the National Pipe Thread (NPT) or the Dryseal (NPTF
Welspun Tubular LLC (USA): This spiral pipe and coating facility is spread across 740 acres and has an annual capacity of 350,000 tons near Little Rock Port, Arkansas. Welspun Tubular LLC begins production at its new electric-resistance welded (ERW) steel pipe mill in Little Rock, Ark., in 2012 according to a company executive. [33]
Wah Seong is also a leading distributor and manufacturer of building materials and spiral welded steel pipes for water transmission and infrastructure use. Wah Seong has companies and operations across the globe in Singapore , Indonesia , Australia , China , India , the UAE , Saudi Arabia , Nigeria and the USA , while its operational ...
Pipe welding is often performed by specially licensed workers whose skills are retested periodically. For critical applications, every joint is tested with nondestructive methods. Because of the skills required, welded pipe joints are usually restricted to high-performance applications such as shipbuilding, and in chemical and nuclear reactors.
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