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5 franc coins made of aluminium bronze from 1940 Aluminium bronze with 20% aluminium at 500× magnification. The following table lists the most common standard aluminium bronze wrought alloy compositions, by ISO 428 designations. The percentages show the proportional composition of the alloy by weight.
Bronze is an alloy consisting primarily of copper, commonly with about 12–12.5% tin and often with the addition of other metals (including aluminium, manganese, nickel, or zinc) and sometimes non-metals, such as phosphorus, or metalloids, such as arsenic or silicon.
Islamic Golden Age brass astrolabe Brass lectern with an eagle. Attributed to Aert van Tricht, Limburg (Netherlands), c. 1500.. Brass is an alloy of copper and zinc, in proportions which can be varied to achieve different colours and mechanical, electrical, acoustic and chemical properties, [1] but copper typically has the larger proportion, generally 66% copper and 34% zinc.
Aluminium oxide (or aluminium(III) oxide) is a chemical compound of aluminium and oxygen with the chemical formula Al 2 O 3. It is the most commonly occurring of several aluminium oxides, and specifically identified as aluminium oxide. It is commonly called alumina and may also be called aloxide, aloxite, or alundum in various forms and ...
The discovery and exploitation of the Bolivian tin belt in the 19th century made tin far cheaper, although forecasts for future supplies are less positive. There are as many as 400 different copper and copper alloy compositions loosely grouped into the categories: copper, high copper alloy, brasses, bronzes, cupronickel , copper–nickel–zinc ...
Ni-Ti-Al (titanium 40%, aluminum 10%), also called Nital; Y alloy (4% copper, nickel, ... Brass see also Brass §Brass types for longer list. Calamine brass
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Brass finishes should be oiled or clear-coated with polyurethane or a similar material to make a barrier from air and water to prevent corrosion. Corrosion is slowed when a surface is already oxidized, for example aluminum is very hard to weld because of its persistent aluminum oxide layer, this prevents access to the bare metal.