Welded Tubes are important materials in making foundations in both offshore as well as onshore projects. Welded Tubes are easy to weld to form a desired structure. These Welded Tubes are mainly composed of austenite and ferrite. The materials are very easy to get and have an excellent durable nature. The main applications of these kinds of Welded Tubes are in the heat exchanger tubes that require a resistance to high temperature. These Welded Tubes are also used in paper making machines and in the seawater handling systems. The super duplex tubes are different in their material composition. This particular type is rich in both molybdenum and chromium. This gives a higher resistance against the corrosion. The alloying costs are less like the other duplex tubes. The fabrication and the management cost of these tubes are remarkably lesser than other tubes. These tubes protect the construction from the environmental erosion to give the structure an enhanced solidity.