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LSAW Steel Pipe And ERW Steel Pipe Difference

Edit:Ausin Pipeline Material & Equipment Co.,Ltd   Date:Jun 22, 2017

  LSAW steel pipe and ERW steel pipe difference

  "ERW steel pipe" is the high-frequency straight seam welded pipe, English Electric Resistance Welding, abbreviated as ERW, for conveying oil, natural gas and other vapor-liquid objects, to meet the high and low pressure requirements, the current transport pipe in the world The field occupies a pivotal position.

  1, welded pipe refers to the ordinary "submerged arc welded steel pipe", electrical engineering with "SC" said, can be used for water and gas pipe can also be used for threading, thicker.

  2, the pipeline is the wire tube, relatively thin, with "T" said, can only do with threading tube.

  3, ERW tube is "high frequency resistance welding steel pipe", and ordinary welding pipe welding process is not the same, the weld is made of the base material of the steel body melting, mechanical strength better than the general pipe.

  "LSAW steel pipe" is the main technology of straight seam submerged arc welding technology technical characteristics:

  1 steel pipe forming process, the steel plate deformation uniform, residual stress is small, the surface does not produce scratches. The machined steel pipe has greater flexibility in the size and thickness of the steel pipe, especially in the production of high-grade thick-walled steel pipes, especially large-diameter thick-walled pipes, which can meet the advantages of other processes The user in the steel specifications more requirements;

  2 before the first welding through welding (welding) process, in the best position to achieve welding, not prone to wrong side, welding and not welding and other defects, easy to control the quality of welding;

  3 to achieve the overall mechanical diameter, can effectively improve the dimensional accuracy of steel pipe and improve the distribution of stress in the steel pipe, so as to avoid damage caused by stress corrosion, while the site is conducive to welding construction;

  4 on the steel pipe 9 100% of the quality inspection, so that the entire process of production of steel pipe are effective in the detection, monitoring under the effective guarantee of product quality;

  5 the entire production line of all the equipment with the computer data acquisition system networking functions, to achieve real-time data transmission, by the central control room for production.


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