Aluminium is a lightweight, non-ferrous metal known for its excellent corrosion resistance, high strength-to-weight ratio, and good thermal and electrical conductivity. It is soft, ductile, and highly workable, making it suitable for casting, machining, extrusion, and fabrication processes. Aluminium naturally forms a protective oxide layer that enhances its resistance to rust and environmental damage. It also offers good reflectivity and is non-magnetic and non-toxic. Various grades such as commercial pure aluminium and alloyed aluminium (with elements like silicon, magnesium, copper, or zinc) are selected based on strength and application requirements.

Aluminium is widely used in automotive parts, aerospace components, electrical conductors, construction structures, packaging materials, and general engineering applications due to its durability, lightweight nature, and recyclability.