Fabrieksprijs groothandel: 5251 legering aluminium spoel te koop, koop op maat gemaakte metalen aluminium plaatrol van de Chinese fabrikant en leverancier

5251 legering aluminium spoel overzicht

5251 aluminium spoel is een relatief sterke serie aluminium spoel in de 5 serie aluminiumlegering: producten. Aluminium legering 5251 bevat nominaal 2.0% magnesium & 0.30% mangaan. Het heeft een goede verwerkbaarheid;, gemiddelde statische sterkte, hoge vermoeiingssterkte, goede lasbaarheid, en zeer goede corrosieweerstand, vooral in mariene atmosferen. Het heeft ook de lage dichtheid en uitstekende thermische geleidbaarheid die alle aluminiumlegeringen gemeen hebben. It is commonly used in sheet, plate and tube form.

Typical Applications Architecture, general sheet metal work, small boats.

Corrosieweerstand 5251 has the same high resistance to general corrosion as other non heat treatable aluminium alloys. It also has the higher resistance to slightly alkaline conditions common to the 5000 serie legeringen. The resistance of 5251 to corrosion in marine atmospheres is excellent, exceeding that of 5005, hence the frequent use of 5251 in marine applications such as small boats and dinghies.

The corrosion resistance of aluminium alloys relies on a protective surface oxide film, which when damaged is readily repaired by the rapid reaction between aluminium and oxygen. Echter, the high reactivity of the base metal can give rapid corrosion if the film cannot be repaired, so aluminium alloys are not suitable for use with reducing media. 5251 can be anodised to improve the corrosion resistance by thickening the protective surface film.

Since aluminium is a reactive metal, it may corrode more quickly when in electrical contact with most other metals. The prediction of galvanic corrosion is complex; please consult Austral Wright Metals for specific advice.