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US 2012/0237394 A1Published application
Low Lead Brass Alloy
OwnerOmer Ozgen, Ahmet Taner Ozkalaninventors
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Abstract
The present invention relates to a low lead brass alloy which ensures reduction of harmful to human health effects of lead that is useful for increasing machinability of brass raw material used in tapwares, valves and water meters, in the event of it's contact with water and which comprises less than 0.25% lead. The inventive brass alloy is an alloy which has machinability, is cost-efficient and environmentally friendly by means of its bismuth content.
Claims6
A low lead brass alloy used in all brass based products that contact with water such as tapware, valves and water meters
- comprising 55 to 65% copper (Cu), 0.1 to 1.0% aluminum, 5 to 10 ppm boron (B), other metals which are comprised of less than 0.1% iron (Fe), manganese (Mn), nickel (Ni), tin (Sn) by weight;
- characterized by 0.5 to 2.0% bismuth (Bi), 0.05 to 0.30% mischmetal and less than 0.25% lead (Pb) by weight.
Dependencies are inferred from the claim text.