Aluminium is a lightweight, silvery-white metal known for its low density, corrosion resistance, and versatile processing characteristics. As the most abundant metal in the Earth's crust, it plays a critical role across a wide range of industries.
Key properties
- Lightweight – With a density of only ~2.7 g/cm³, aluminium is about one-third the weight of steel or copper.
- Excellent corrosion resistance – Forms a natural oxide layer that protects it from weathering and many chemicals.
- Good thermal and electrical conductivity – Frequently used in electrical and heat exchange applications.
- High ductility and formability – Can be extruded, rolled, cast, or machined into complex shapes.
- Non-magnetic and non-sparking – Suitable for use in sensitive environments such as electronics or explosive atmospheres.
- Recyclable – 100 % recyclable with only a fraction of the energy required for primary production.
Common applications
- Aerospace – Aircraft structures, fuselage components, and wing systems due to its high strength-to-weight ratio.
- Construction – Window frames, cladding, roofing, and structural elements, especially in modern architecture.
- Packaging – Beverage cans, food containers, and foil thanks to its barrier properties and low weight.
- Transportation – Automotive components, railcars, and shipbuilding for lightweight construction and fuel efficiency.
- Electronics – Casings, heat sinks, and electrical conductors.
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