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A discovery made by researchers to help ensure water safety may have applications that reach far beyond plumbing. The researchers wanted to find alternative lead-free bronze alloys for use in water valves and the plumbing systems for more than 10 million homes in the United States.
The use of lead in such systems is greatly restricted in the United States because of health concerns. Purdue University's team found new copper-manganese alloys that have higher strength and better castability compared to the current lead-free alternatives.
Alloys - Properties - Cast - Alternatives - Kevin
"Our alloys have been shown to have superior overall mechanical properties compared to other cast, lead-free alternatives," said Kevin Trumble, a professor of materials engineering at Purdue and director of the Purdue Center for Metal Casting Research, who led the research team. "We are helping to meet the growing need for new alloys with superior mechanical properties, especially amid an increasing amount of government regulation requiring industries to reduce the lead content they use."
Plumbing fitting and valve manufacturers...
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