Alloy 6000 series(6061 and 6082) is the most common. When selecting aluminum alloys, we consider the strength and durability as well as other qualities like lightness. The  mentioned alloy bears the quality as well as others that make it the best for the job.

The extrusion process also plays an important supporting role in the development process. While these qualities borne by 6000 series(6061 and 6082), extruded profile of them improve them significantly.