Admiralty metal

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Description

An old term for a brass alloy containing 70-73% copper, about 1% tin and 0.01% arsenic with the balance composed of zinc. Small amounts of additional tin increase the hardness and strength while decreasing the ductility. This alloy offers good resistance to dilute acids and alkalis, sea water and sulfurous atmospheres (Lewis, 1993)

Synonyms and Related Terms

admiralty alloy; tin brass; latão do almirantado (Port.)

Melting Point 900-953
Density 8.53

Sources Checked for Data in Record

  • G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 17, 115
  • David C. Scott, Metallography and Microstructure of Ancient and Historic Metals, The Getty Conservation Institute, Los Angeles, 1991

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