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, AutomobilesĮRW (Electric Resistance Welded) pipes are welded longitudinally, manufactured from Strip / Coil and can be manufactured upto 24” OD. The seamless pipe is finished to dimensional and wall thickness specifications in sizes from 1/8 inch to 26 inch OD. In Seamless pipe, there are no welding or joints and is manufactured from solid round billets. Seamless pipe is manufactured by extruding the metal to the desired length therefore 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. What is the Difference Between Seamless and ERW Stainless Steel Pipes?Įlectric Resistance Welding (ERW) pipe is manufactured by rolling metal and then welding it longitudinally across its length. Major Indigenous suppliers of these HR Coils are SAIL, Essar, JSW, Lloyds etc. To Manufacture ERW Stainless Steel Pipes HR Coils are required. Major Indigenous suppliers are JSPL, JSW & Kalyani and steel round billets are imported from renowned mills from Europe, Far East countries, Canada, China. Billets are procured both from indigenous suppliers and from abroad.
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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.
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Today, Pearlite Steel will discuss about the key difference between Seamless and ERW Stainless Steel Pipe What is the Raw material required for manufacturing Seamless & ERW Stainless steel Pipes?