Boiler has played an important role in the modern world from the early days of industrial revolution. Now-a-days boilers are widely used by Utility, Industrial, Commercial & Institutional sectors for heating and power generation. With the ever increasing demand for power, the requirements of utility boilers have gone up manifold in recent years. Tubes & pipes form the major part of any boiler in various applications like economizer, super-heater & headers. Size, grade, quantity of tubes & pipes depend on the design of the boiler which is based on fuel, temperature, pressure & volume of steam-flow. There is also continuous efforts to increase the efficiency of the boiler. With the demand for high capacity & high efficiency boilers, the demand for higher grade tubes & pipes have increased substantially.