precio de fábrica al por mayor 5251 bobina de aleación de aluminio para la venta, Compre rollos de láminas de aluminio de metal personalizado del fabricante y proveedor de China

5251 descripción general de la bobina de aleación de aluminio

5251 La bobina de aluminio es una serie de bobinas de aluminio relativamente fuerte en el 5 serie de aleación de aluminio products. Aleación de aluminio 5251 contiene nominalmente 2.0% magnesio & 0.30% manganeso. Tiene buena trabajabilidad, fuerza estática media, alta resistencia a la fatiga, buena soldabilidad, y muy buena resistencia a la corrosión, especialmente en atmósferas marinas. También tiene la baja densidad y la excelente conductividad térmica comunes a todas las aleaciones de aluminio.. It is commonly used in sheet, plate and tube form.

Typical Applications Architecture, general sheet metal work, barcos pequeños.

Resistencia a la corrosión 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 aleaciones en serie. 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. Sin embargo, 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.