A Guide to ERW Steel Pipe

    What is ERW Steel Pipe ?

    A pipe formed by electric resistance welding only having one vertical seam is called ERW pipes. It can be available in varied diameters and wall thickness. The sizes of pipes ERW pipes can range from 21.3mm to 660mm and length can up to 18m.

    How ERW Pipe is made?

    Decoiling--- Flattening--- End Cropping--- Butt welding--- Superior Accumulator--- Flying Cut-off Device--- Edge Milling--- Board Exploration--- Forming-   Contact/Induct welding--- Burr scraping--- Ultrasonic Test--- Heat Treatment--- Air Colling--- Sizing--- Flying Saw--- Sampling--- Flattening Test--- Straightening--- Hydraulic Test--- Ultrasonic Test on welding seam, pipe body, pipe end--- End facing and Chamfering--- Visual Inspection--- Measuring, weighting,marking--- Painting

    Application of ERW steel pipes:

    These pipes are used in fencing, line pipes, tubing, casing, scaffolding, water and gas transportation, structural purpose, engineering purpose. There has been a tremendous increase in the production of ERW steel pipes due to growing demand in oil & gas industry, infrastructure construction, etc.

    http://www.xysteelpipe.com/info/A-Guide-to-ERW-Steel-Pipe-775-1.htm

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