Aluminum Bronze Valves
The Alloy Valve Stockist generally supplies hastelloy C276, B3 and A494 CW12MW gate, globe, check, ball, butterfly, plug, needle and custom made valves. Hastelloy valves come in many grades, most of them defined by the Haynes Corporation. Hastelloy B2 and B3 offer extremely high corrosion and temperature resistance and tensile strength, and are difficult to machine. Hastelloy grade C-22 alloy, the norm than now replaces the former C276 is the most common valve material in this grade category. Under UNS, Hastelloy is listed as N10665, particularly C276 which is denoted as N10276, whilst the newer C22 comes are N06022. This corrosion resistant exotic alloy also lists as N10675 N06455. DIN norms also allow for codification of hastelloy under 5 different grades, mainly 2.4617 and 2.4600, but also 2.4602, 2.4819, and more rarely 2.4610. The most common form of cast hastelloy for valves is A494 CW12MW.
As a valve stockist, we stock, supply and distribu...
As a valve stockist, we stock, supply and distribute valves in exotic materials such as titanium, hastelloy, duplex, super duplex, monel, incoloy, inconel, alloy 20, 254 SMO, 6 Moly,tantalum, zirconium, uranus, 904L both in stock and can also deliver against tight lead times.
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.
Actuators: we can supply pneumatic, electric and hydraulic actuators with valves when required.
Material properties
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
- Certain structural retrofit building 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.
Actuators: we can supply pneumatic, electric and hydraulic actuators with valves when required.
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