Friction stir welding (FSW) is a relatively new joining technology invented by The Welding Institute in 1991. The general use has been for welding soft, low melting materials such as aluminum. Advances in tool technology has allowed for the implementation of FSW into steel, stainless steel and nickel base alloys. The benefits of FSW include low heat input, elimination of solidification defects, the ability to join difficult and historically unweldable materials all while improving the mechanical properties over conventional welding processes. The oil and gas industry utilizes many specialized materials for performance and corrosion resistance. This paper will present and report progress on the different material properties and applications of FSW within the oil and gas industry.

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