Technical characteristics of aluminium

Corrosion resistance

Aluminium forms a natural surface protection layer on context with air. This layer is always reconstituted after removal, providing outstanding resistance to atmospheric corrosion. Pure and very pure aluminium, and also non-copper alloys, are resistant to a very large number of media. For this reason, they are widely used in the construction and chemical industries, the food and beverage industry and for vehicle construction.

However the aluminium-based materials with the highest strength ratings – over 500 N/mm2 – have very limited resistance. This has to be compensated by structural design solutions.