Nickel silver, maillechort, German silver,[1]argentan,[1]new silver,[1]nickel brass,[2]albata,[3] or alpacca[4] is a cupronickel (copper with nickel) alloy with the addition of zinc. The usual formulation is 60% copper, 20% nickel and 20% zinc.[5] Nickel silver does not contain the element silver. It is named for its silvery appearance, which can make it attractive as a cheaper and more durable substitute. It is also well suited for being plated with silver.
A naturally occurring ore composition in China was smelted into the alloy known as paktong or báitóng (白銅) ('white copper' or cupronickel).[citation needed][6][7] The name German Silver refers to the artificial recreation of the natural ore composition by German metallurgists.[8] All modern, commercially important, nickel silvers (such as those standardized under ASTM B122) contain zinc and are sometimes considered a subset of brass.[9]
^Gayle, Margot; Look, David W.; Waite, John G. (April 1993). "Pt. 1, A Historical Survey of Metals; Pt. 2, Deterioration and Methods of Preserving Metals". Metals in America's Historic Buildings: Uses and preservation 5reatments. Cultural Resources, Preservation Assistance. U.S. Department of the Interior, National Park Service. p. 35. ISBN978-0-16-061655-6 – via Google books.
^"Marks of Alpacca and Alpacca-Silver II products". Association of Small Collectors of Antique Silver (ASCAS) (Ascasonline.org). Marks of Berndorf Metalware Factory in Austria. Retrieved 19 December 2013.