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Email : sale@stpipefitting.cn

Add : Yihe Building ,Cangzhou City  ,
          Hebei Province 

Tel: 0086- 0317-5295077

Fax: 0086-0317-5295979

  NEWS

ERW Steel Tubes & Steel Pipes

source:admin   Release time:5/24/2015 10:31:57 PM

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  Hebei shengtian pipe-fitting group Co., ltd is specialized in manufacturing and exporting a variety of stainless steel,carbon steel pipe fititngs such as elbows, tees, reducers , flanges etc. We are standard and non-standard flange mamufacure.All kind of pipe fittings, flanges are according to the international standard to produce.Each product,the quality meet the international standard inspection technical standard.

  Steel Pipes manufacters and Exports huge range of ERW Steel Tubes & Steel Pipes. For pipes or tubes size 4 inch (10.2mm) OD and below, strip is fed into a set of forming rolls which consists of horizontal and vertical rollers so placed as to gradually from the flat strip in to a tube which is then allowed to pass the welding electrodes. The electrodes are copper disks connected to the secondary of a revolving transformer assembly. The copper disk electrodes make contact on each side of the seam and temperature is raised to the welding point. Outside flash is removed by a cutting tool as the tube leaves the electrodes, inside flash is removed either by an air hammer or by passing a mandnel through the welded tube after the tube has been cooled. This is termed as Electric Resistance Welded or ERW tube/pipe.

  ERW pipes are used in Water Pipelines, Agriculture and Irrigation (Water Mains, Sewerage Systems, Industrial Water Lines, Plant Piping, Deep Tube-Wells & Casing Pipes). Other popular application area includes usage in gas pipe lines (pipe lines for natural gas, LPG and other non-toxic gases). The SW is meant for shallow water applications This could be in a canal, natural stream, culvert, or pipe.

  We warmly welcome customers at home and abroad to visit our factory and seek common development.

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          An article:This specification covers two grades of electric-resistance-welded steel pipe intended for conveying gas, vapor, water or other liquid
          The next chapter:A flange is defined as a plate type device

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