Aluminium Alloy 6061 is a versatile, medium-to-high strength alloy that belongs to the 6xxx series, primarily alloyed with magnesium and silicon. It is known for its excellent corrosion resistance, good weldability, and decent strength, making it suitable for a wide range of structural applications. In its most common temper, 6061-T6, it undergoes solution heat treatment followed by artificial aging, which significantly increases its strength and hardness.
The alloy has a density of about 2.70 g/cm³ and offers good thermal and electrical conductivity. It is widely used in aerospace components, automotive parts, bicycle frames, and marine fittings due to its balance of strength, weight, and resistance to environmental conditions.

Aluminium Alloy 6061 is widely available in various forms to suit different manufacturing and structural needs. It commonly comes in extruded shapes such as bars, rods, tubes, and profiles, as well as in rolled forms like sheets and plates. Additionally, 6061 is available as forged parts and sometimes in wire form. Among these, 6061-T6 sheets and plates are particularly popular in aerospace and structural applications