Base metal Copper is also considered a base metal because it oxidizes relatively easily, although it does not react with HCl. In mining and economics, the term base metals refers to industrial non-ferrous metals excluding precious metals. These include copper, lead, nickel and zinc. The U.S. Customs and Border Protection is more inclusive in its definition. It includes, in addition to the four above, iron and steel, aluminium, tin, tungsten, molybdenum, tantalum, cobalt, bismuth, cadmium, titanium, zirconium, antimony, manganese, beryllium, chromium, germanium, vanadium, gallium, hafnium, indium, niobium, rhenium and thallium, and their alloys. Zamak is an alloy used in casting (metalworking) which
American Brass Superfund site and extensive soil and groundwater contamination. After assessment by the EPA, it was added to the National Priorities List, in May 1999, for long-term remedial action. American Brass Superfund site The American Brass Superfund site is a former industrial site, located in Henry County, Alabama. American Brass Inc. (ABI) operated a brass smelter and foundry facility on the site between 1978-1992. Prior to its closure in December 1992, the company had been cited by the United States Environmental Protection Agency (EPA), and the Alabama Department of Environmental Management, (ADEM), on several occasions for Resource Conservation and Recovery Act (RCRA) violations,