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What is ERW Pipe?
Time: 2024-07-11
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ERW straight seam welded pipe is a steel pipe with advanced product performance and relatively economical in the field of oil and gas storage and transportation. It is widely used in oil and pipeline transportation. Therefore, this article is introduced to you by Quanshuo Metal Materials.

What is ERW pipe?

ERW pipe is a straight seam resistance welded pipe, the full name is “Electric Resistance Welding”. This kind of steel pipe uses hot-rolled wide steel coil as raw material, and undergoes pre-bending, continuous forming, welding, heat treatment, sizing, straightening, cutting and other processes. Compared with spiral welded pipes, it has the advantages of short welds, high dimensional accuracy, uniform wall thickness, good surface quality, and high-pressure resistance. It is widely used in transporting gas and liquid objects such as oil and natural gas.


Among them, resistance welded steel pipes are divided into two forms: AC welded steel pipes and DC welded steel pipes.

AC welding is divided into low-frequency welding, medium-frequency welding, ultra-medium-frequency welding and high-frequency welding according to the frequency. High-frequency welding is mainly used for the production of thin-walled steel pipes or ordinary thick-walled steel pipes. High-frequency welding is divided into contact welding and induction welding. DC welding is generally used for small-diameter steel pipes.

Therefore, in general, high-frequency welded pipes are included in ERW welded pipes, which are a type of ERW welded pipes produced by high-frequency welding technology.

Application areas of ERW pipes:

1. Pipelines and conveying systems: the main component of pipelines for the transportation of liquids (e.g. water, oil, natural gas) or gases (e.g. gas pipelines). Welded steel pipes are widely used in water supply systems, natural gas pipelines and oil and gas transportation. 2.

2. Oil and gas industry: as pipelines for the transportation of oil and gas. These pipes need high strength and corrosion resistance, so welded steel pipes are very important in oil extraction, transportation and refining.

erw pipe application

Quanshuo Metal Materials is a manufacturer that has passed ISO9001:2015, TUV, SGS, and CE certification. It mainly produces Carbon Steel Pipe, etc., with an annual output of 300,000 tons. Looking forward to your inquiry.

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