The advantageous combination of low density, high specific strength and excellent corrosion resistance led to the use of CP grade 2 titanium in some Navy ship seawater piping applications. However, the increase in the cost of titanium has caused the Navy to return to using coppernickel (Cu-Ni) piping for some of these applications, even though the titanium piping typically exhibits three times longer life than Cu-Ni pipe. The goal of this work is to investigate the possibility of using a low cost titanium starting stock, along with a novel low cost manufacturing process to produce titanium pipe that would be about equivalent to the cost per unit length of Cu-Ni piping. The approach taken was to utilize low cost titanium powder pressed preforms and flowform net shaped pipe. The details of this process and the properties of the resultant pipe will be described in this report. In addition to the near net shaped pipe, the properties of gas tungsten arc (GTA) weldments of pipe sections will be presented.
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