United States New York City water supply system since in the 1960 of the 20th century, the use of titanium. Aging old original in New York City's drinking water distribution system, unable to meet demand, authorities on the basis of the assessment of alternative materials for 15 years, in 1993 in city pipes of large diameter column pipe and other pipe in the construction of 304L titanium were used on a large scale, the goal is to establish a system of long service life of 100 years. Reconstruction of water supply networks in Washington, also uses a titanium pipe, authorities point to consider is the lifetime cost, compared with other materials, titanium throughout the lifetime total cost is lowest. Titanium corrosion resistance wear resistance and long life characteristics, with a view to reducing network maintenance and replacement costs. United States at a cost of 300 million yuan in the new Ford field in Detroit water supply system the water mains, including the point of sale of direct drinking water pipeline, all 304 titanium. Titanium was chosen, was based solely on economic considerations, although material costs are higher than for the first time, but due to the excellent corrosion resistance of titanium, the wall thickness of the pipe wall thickness may be compared to other materials, installation and processing costs significantly reduced, and not only that, the pipeline daily operation and maintenance costs are significantly reduced. United States have more than more than 30 drinking water treatment plants using titanium instead of ductile iron pipes of titanium in order to save costs. Massachusetts water works as a result of titanium piping, than using the ductile titanium cost savings of about $50,000, and after 30 years of use, titanium pipes still look like new.