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A bronze is an alloy of copper and other metals, most often tin, but also aluminium and silicon. Aluminium bronzes are alloys of copper and aluminium. The content of aluminium ranges mostly between 5% and 11%.
Bronze disease is an irreversible and nearly inexorable corrosion process that occurs when chlorides come into contact with bronze or other copper-bearing alloys. [1] It can occur as both a dark green coating, or as a much lighter whitish fuzzy or furry green coating. [ 1 ]
Marinised metals include some of the following: . Non-corrosive alloys that resist or are impervious to salt-water corrosion, e.g. 316 marine grade stainless steel; brass (an alloy of copper and zinc), or bronze (which contains copper with tin in place of zinc).
How does saltwater effect brass? Thank you! Ckelley4 13:22, 4 March 2007 (UTC) Random question, yet interesting. Brass is used in brass instruments; when these instruments are played, saliva will enter the instrument. So, since saliva is mostly water, and salt wouldn't be expected to react with brass, I don't think saltwater would affect brass.
U.S. government bronze specification H is composed of 83% copper, 14% tin, 3% zinc, and 0.8% phosphorus. [4] Red brass is used to produce pipes, valves, and plumbing fixtures and is considered to offer a good mixture of corrosion resistance, strength and ease of casting. [5] It typically contains 85% copper, 5% tin, 5% lead, and 5% zinc.
Much of the porthole's weight comes from its glass, which, on ships, can be as much as two inches thick. Metal components of a porthole are also typically very heavy; they are usually sand-cast and made of bronze, brass, steel, iron, or aluminium. Bronze and brass are most commonly used, favoured for their resistance to saltwater corrosion. The ...
Bronze, or bronze-like alloys and mixtures, were used for coins over a longer period. Bronze was especially suitable for use in boat and ship fittings prior to the wide employment of stainless steel owing to its combination of toughness and resistance to salt water corrosion. Bronze is still commonly used in ship propellers and submerged bearings.
Copper, brass and bronze can develop a shiny pitted surface and can become covered with a layer of concretion as well as green or black corrosion. Ferrous metals such as cast and wrought iron and steel usually corrode to form thick concretions that can entirely cover the metal object. [ 9 ]
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