Aluminum Metals
Aluminum is a silvery-white, lightweight, and ductile metal, notable for its exceptional corrosion resistance and high thermal and electrical conductivity. It is the most abundant metallic element in the Earth's crust, found primarily in bauxite ore. Aluminum's unique combination of properties makes it one of the most widely used metals globally, second only to iron. Its low density, approximately one-third that of steel, is a significant advantage in applications where weight reduction is crucial.
The corrosion resistance of aluminum is attributed to the formation of a thin, tenacious, and self-healing oxide layer on its surface when exposed to air. This passive layer protects the underlying metal from further oxidation and attack. Aluminum is also highly recyclable, with the recycling process requiring significantly less energy (around 5% of the energy needed for primary production) compared to producing primary aluminum from bauxite, making it a sustainable material.
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