Grupo Compás
■ Aluminum bronze ■
Phone: +34 93 4351672
Fax: +34 93 5504076
Alloy Valves
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Aluminium Bronze Valves
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Alloy 20
Super Duplex
Monel
254 SMO F44
Inconel
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Material overview
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About Us
■ Aluminum bronze -- material overview ■
Grupo Compás generally holds aluminum bronze gate, globe, check, ball and butterfly valves.
As a valve stockist, we hold valves in exotic materials such as titanium, hastelloy, duplex, super duplex, monel, incoloy, inconel, alloy 20, both in stock and can also deliver against tight lead times.
Aluminium bronze is a type of bronze in which aluminium is the main alloying metal added to copper . 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 rests in the aluminium component of 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.
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 , engine components (especially for seagoing ships), underwater fastenings in naval architecture , and ship propellers . The attractive gold-toned coloration of aluminium bronzes has also led to their use in jewelry.
Aluminium bronzes are in the highest demand from the following industries and areas:
General sea water-related service
Water supply
Oil and petrochemical industries eg tools for use in non-sparking environments
Specialized anti-corrosive applications
Aluminium bronze can be welded using the MIG welding technique with an aluminium bronze core and pure argon gas.
We generally hold the following material range: 317L/A744 GR. CG3M, 317/A744 GR. CG8M, 347/A744 GR. CF8C, Alloy 20/A744 GR. CN7M, CD4MCU/A744, Ferrallium 255, Duplex 2205 CD3MN, Monel/A494 GR. M35-1, Nickel/A494 GR. CZ100, Inconel/A494 GR. CY40-CL 1 & 2, Incoloy 800/A351 CTl 5C, Hastelloy B/A494 GR. N12MV, Hastelloy C/A494 GR. CW12MW, Hastelloy C276, Inconel 625, Titanium/B367 -69 GR. C3, Zirconium/B752 GR. 702C & 705C, Avesta 6moly 254 SMO/A351 CK3MCUN.
For quotations or further information about our products, please contact Heather Smith (International eCommerce) by phone +34 93 435 1672 or by email: alloy-valves@alloy-valves.com
■ A182 F61, A182 F91, A182 F321, A182 F347, A182 F347H, A182 F44, Duplex A182 F51, Duplex 1.4462, Duplex 1.4470, Duplex UNS S31803, Duplex UNS S32205, Super Duplex UNS S32750, Super Duplex UNS S32760, Super Duplex 1.4501, Super Duplex 1.4410, Super Duplex 1.4507, Ferralium 255, Super Duplex A182 F53, Super Duplex A182 F55, A182 F91, 254 SMO, 6moly, 6mo, Duplex A995 Gr. 4A CD3MN, Duplex A890 Gr. 4A CD3MN, Duplex 2205, Super Duplex A890 Gr. 5A CEMN, Super Duplex A890 Gr. 6A CD3MWCUN, Alloy 20, Carpenter 20, A351 CN7M, A20 UNS 08020, Titanium A182 316Ti, Titanium Gr. 2, Titanium-Palladium Gr. 7, B367 Gr. 2, B381 Gr. II, UNS N08020, Monel 400, Monel K500, Monel A494 M35-1, Monel UNS N04400, Avesta 904L, Inconel A494-CY40, Inconel 600, Inconel 625, Inconel UNS N06600, Inconel UNS N06625, Incoloy 800, Incoloy 800H, Incoloy 800HT, Incoloy 825, Incoloy UNS N08800, Incoloy UNS N08825, Hastelloy C276, Hastelloy C22, Hastelloy B3, Hastelloy A494 CW12MW, A182 F5, A182 F22, A216 WC6, A216 WC9, A217 C5, A182 F11, A351 CG8M, Aluminium Bronze Valves■
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Grupo Compás. Barcelona. Spain..Tlf.: (+34) 93 435 1672...Fax: (+34) 93 550 4076.. Email: alloy-valves@alloy-valves.com
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