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Bow of the Cutty Sark The restored stern of the Cutty Sark (with stern draft and rudder) sheathed in Muntz metal.. Muntz metal (also known as yellow metal [1]) is an alpha-beta brass alloy composed of approximately 60% copper, 40% zinc and a trace of iron.
Bismuth bronze or bismuth brass is a copper alloy which typically contains 1-3% bismuth by weight, although some alloys contain over 6% Bi. This bronze alloy is very corrosion -resistant, a property which makes it suitable for use in environments such as the ocean.
Phosphor bronze propeller salvaged from 1940s American warship.. Phosphor bronze is a member of the family of copper alloys.It is composed of copper that is alloyed with 0.5–11% of tin and 0.01–0.35% phosphorus, and may contain other elements to confer specific properties (e.g. lead at 0.5–3.0% to form free-machining phosphor bronze).
Sodium tungsten bronze is a form of insertion compound with the formula Na x WO 3, where x is equal to or less than 1. So named because of its metallic lustre, its electrical properties range from semiconducting to metallic depending on the concentration of sodium ions present; it can also exhibit superconductivity .