powered by CADENAS

Social Share

Aluminium bronze (9068 views - Material Database)

Aluminium bronze is a type of bronze in which aluminium is the main alloying metal added to copper, in contrast to standard bronze (copper and tin) or brass (copper and zinc). A variety of aluminium bronzes of differing compositions have found industrial use, with most ranging from 5% to 11% aluminium by weight, the remaining mass being copper; other alloying agents such as iron, nickel, manganese, and silicon are also sometimes added to aluminium bronzes.
Go to Article

Aluminium bronze

Aluminium bronze

Aluminium bronze

Licensed under Creative Commons Attribution 2.0 (Jean-Pierre Dalbéra from Paris, France).

Aluminium bronze is a type of bronze in which aluminium is the main alloying metal added to copper, in contrast to standard bronze (copper and tin) or brass (copper and zinc). A variety of aluminium bronzes of differing compositions have found industrial use, with most ranging from 5% to 11% aluminium by weight, the remaining mass being copper; other alloying agents such as iron, nickel, manganese, and silicon are also sometimes added to aluminium bronzes.

Compositions

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. Copper is the remainder by weight and is not listed:

Alloy Aluminium Iron Nickel Manganese Zinc Arsenic
CuAl5 4.0–6.5% 0.5% max. 0.8% max. 0.5% max. 0.5% max. 0.4% max.
CuAl8 7.0–9.0% 0.5% max. 0.8% max. 0.5% max. 0.5% max.
CuAl8Fe3 6.5–8.5% 1.5–3.5% 1.0% max. 0.8% max. 0.5% max.
CuAl9Mn2 8.0–10.0% 1.5% max. 0.8% max. 1.5–3.0% 0.5% max.
CuAl10Fe3 8.5–11.0% 2.0–4.0% 1.0% max. 2.0% max. 0.5% max.
CuAl10Fe5Ni5 8.5–11.5% 2.0–6.0% 4.0–6.0% 2.0% max. 0.5% max.

Material properties

Aluminium bronzes are most valued for their higher strength and corrosion resistance as compared to other bronze alloys. These alloys are tarnish-resistant and show low rates of corrosion in atmospheric conditions, low oxidation rates at high temperatures, and low reactivity with sulfurous compounds and other exhaust products of combustion. They are also resistant to corrosion in sea water. Aluminium bronzes' resistance to corrosion results from the aluminium in the alloys, which reacts with atmospheric oxygen to form a thin, tough surface layer of alumina (aluminium oxide) which acts as a barrier to corrosion of the copper-rich alloy. The addition of tin can improve corrosion resistance.[1]

Another notable property of aluminium bronzes are their biostatic effects. The copper component of the alloy prevents colonization by marine organisms including algae, lichens, barnacles, and mussels, and therefore can be preferable to stainless steel or other non-cupric alloys in applications where such colonization would be unwanted.

Aluminium bronzes tend to have a golden color.

Applications

Aluminium bronzes are most commonly used in applications where their resistance to corrosion makes them preferable to other engineering materials. These applications include plain bearings and landing gear components on aircraft, guitar strings, engine components (especially for seagoing ships), underwater fastenings in naval architecture, and ship propellers. Aluminium bronze is also used to fulfil the ATEX directive for Zones 1, 2, 21, and 22. The attractive gold-toned coloration of aluminium bronzes has also led to their use in jewellery.

Aluminium bronzes are in the highest demand from the following industries and areas:

  • General sea water-related service
  • Water supply
  • Oil and petrochemical industries (i.e. tools for use in non-sparking environments)
  • Specialised anti-corrosive applications
  • Certain structural retrofit building applications

Aluminium bronze can be welded using the MIG welding technique with an aluminium bronze core and pure argon gas.

Aluminium bronze is used to replace gold for the casting of dental crowns. The alloys used are chemically inert and have the appearance of gold.

Alloys similar to aluminium bronze are used in making coins, for example the 20, 200 and 500 Italian Lire, the one and two dollar coins of Australian and New Zealand currency produced by the Royal Australian Mint, some Mexican coins and the Nordic gold used for some euro coins. The Canadian 2 dollar coin, produced by the Royal Canadian Mint and circulated since 1996, is a bi-metallic piece with an outer ring of nickel-plated steel and an inner circle of Aluminium bronze composed of 92% copper, 6% Aluminium, and 2% nickel (also known as Bronzital).


鋁鎳鈷合金鋁合金Aluminium-lithium alloyArsenical copperBeryllium copperBillon (alloy)BirmabrightBismanol黃銅青铜Calamine brassChinese silverChromium hydride杜拉鋁Dutch metalGilding metal玻璃HiduminiumHydronaliumItalma镁铝合金MegalliumMercuryMuntz metalNichromePinchbeck (alloy)塑料PlexiglasRose's metal不鏽鋼Stellite钢结构Tombac維塔立合金伍德合金Y alloyArsenical bronzeBell metalFlorentine bronzeGlucydurGuanín (bronze)GunmetalPhosphor bronzeOrmoluSpeculum metal康銅氢化亚铜Copper–tungstenCorinthian bronzeCunife白铜Cymbal alloysDevarda's alloy琥珀金HepatizonManganinMelchior (alloy)Nickel silverMolybdochalkos北歐金ShakudōTumbagaAlGaGalfenolGalinstan白金 (合金)銠金礦Crown goldElinvarField's metalFernicoFerroalloyFerroceriumFerrochromeFerromanganeseFerromolybdenumFerrosiliconFerrotitaniumFerrouranium不變鋼铸铁Iron–hydrogen alloy生鐵Kanthal (alloy)KovarStaballoySpiegeleisenBulat steelCrucible steel41xx steel大馬士革鋼Mangalloy高速鋼Mushet steel马氏体时效钢High-strength low-alloy steelReynolds 531电工钢Spring steelAL-6XNCelestriumAlloy 20Marine grade stainless马氏体不锈钢Sanicro 28Surgical stainless steelZeron 100Silver steelTool steel耐候钢烏茲鋼銲料TerneType metalElektron (alloy)汞齊Magnox (alloy)AlumelBrightrayChromelHaynes International英高鎳合金MonelNicrosilNisilNickel titaniumΜ合金透磁合金超導磁率合金Nickel hydridePlutonium–gallium alloy钠钾合金MischmetalTerfenol-DPseudo palladiumScandium hydride釤鈷磁鐵Argentium sterling silverBritannia silverDoré bullionGoloidPlatinum sterlingShibuichiSterling silverTibetan silverTi Beta-C.Titanium alloy氢化钛Gum metalTitanium gold氮化钛巴氏合金Britannia metalPewterQueen's metalWhite metal氢化铀ZamakZirconium hydride甲烷Mezzanine原子

This article uses material from the Wikipedia article "", which is released under the Creative Commons Attribution-Share-Alike License 3.0. There is a list of all authors in Wikipedia

Material Database

database,rohs,reach,compliancy,directory,listing,information,substance,material