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· The introduction of Carbon Steel Flanges
· Difference between Seamless Stainless Steel Pipe and ERW Stainless Steel Pipe
· Cold Drawn Seamless Steel Pipe
· technology of bend pipe
· pipe fittings cap have five conventional methods
· Technical essentials of carbon steel elbow production
· Stainless steel welded pipe fittings reducer have five conventional methods
· What’s the Technical Requirement of Weld Neck Flanges?

 

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Difference between Seamless Stainless Steel Pipe and ERW Stainless Steel Pipe
Source :admin   Time:12/6/2017 1:48:34 AM   hit:

  ERW stainless steel Pipes? Seamless Steel Pipe is made from a solid round steel ‘billet’ which is heated and pushed or pulled over a form until the steel is shaped into a hollow tube. Billets are procured both from indigenous suppliers and from abroad. HR Coils are required to manufacture ERW stainless steel pipes.

  ERW steel pipe is manufactured by rolling metal and then welding it longitudinally across its length. Seamless pipe is manufactured by extruding the metal to the desired length; therefore ASTM 201 304 316 Stainless Steel ERW Pipe have a welded joint in its cross-section, while seamless pipe does not have any joint in its cross-section through-out its length.

  ERW steel pipes are welded longitudinally, manufactured from Strip / Coil and can be manufactured upto 24” OD. ERW steel pipe cold formed from a ribbon of steel pulled through a series of rollers and formed into a tube which is fused through a electric charge. It is mainly used for low/ medium pressure applications such as transportation of water / oil.

  In Seamless steel pipe, there are no welding or joints and is manufactured from solid round billets. The seamless pipe is finished to dimensional and wall thickness specifications in sizes from 1/8 inch to 26 inch OD. Applicable in for High-pressure applications such as Hydrocarbon Industries & Refineries, Oil & Gas Exploration & Drilling, Oil & Gas Transportation and Air and Hydraulic cylinders, Bearings, Boilers, Automobiles, etc.

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