A usual imagination of pipe is hollow cylinder or tube which is used to transfer some sorts of liquid material from one place to another. It was in the middle of 19th century when bulk steel production started in India. It was the Bessemer process that made not only the bulk production possible, but also helped to produce it in cheaply manner. There is hardly any industry which is not using steel pipes today. So wide are the applications of steel pipes and tubes. Earlier iron pipes and tubes were in use, but they were not very much durable and cost-effective as they got rusted after few years. Steel has improved very much in quality in recent years, and so has grown its industrial use. It is available in different shapes, and sizes today such as Ferritic, Martensitic, heat-resistant tubes, heat-exchanger tubes, duplex stain-less steel tubes, high pressure tubes, and U-bend tubes. Stainless steel is very much in demand for its anti-corrosion quality. They are available in differen...