In oil and gas industries the most important stage is planning stage of drilling in sea and under earth which have highly corrosive environment, high pressure, and have high temperature inside. We require material which has capability to be protected from this type of environment and gives a long life to material because repairing is expensive and impossible under sea and earth. Clad pipes are more effective and improved alternate over conventional carbon steel line pipes. Stainless steel has good corrosion and oxidation resistance in operating conditions so it’s appropriate for oil and gas sectors. The present study focused on behavior and improvement of properties of stainless steel by cladding of Inconel series such as 600, 617, 625, 718, 825 fabricate using TIG welding. Techniques for cladding of Inconel series on stainless have been studied. It was found that TIG welding cladding is most suited for Inconel 825 on stainless steel.

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