Aluminium Alloys 6060, 6063 and 6082 – How to Choose the Right One

Aluminium Alloys 6060, 6063 and 6082 – How to Choose the Right One

Aluminium profiles are used in façades, frames, railings, machine guards, furniture, transport and technical structures. The alloy determines strength, finish quality, corrosion resistance and suitability for anodising or powder coating. The most common profile alloys are EN AW-6060, 6063 and 6082.

EN AW-6060

6060 is a very common extrusion alloy for architectural and decorative profiles. It is easy to extrude, has good surface quality and is well suited for anodising. It is often used for window profiles, interior structures, trim, lightweight frames and visible aluminium details.

EN AW-6063

6063 is similar to 6060 but often selected where a slightly better combination of strength and surface quality is needed. It is widely used in architectural profiles, façade systems and applications where the visual finish is important. It anodises well and is easy to machine.

EN AW-6082

6082 is stronger than 6060 and 6063. It is used for load-bearing structures, machine frames, platforms, transport equipment and applications where mechanical strength matters more than the finest decorative finish. It can be anodised, but the appearance may be less uniform than with 6060 or 6063.

6061 and other alloys

6061 is widely used internationally and offers good strength and machinability. In European profile supply, 6082 is often the more common structural choice. Other alloys may be used for special applications, but 6060, 6063 and 6082 cover most standard needs.

Temper and strength

T6 temper means the material has been solution heat-treated and artificially aged. It provides high strength and is common in structural aluminium profiles. When comparing alloys, always check both the alloy and the temper.

Surface treatment

Aluminium naturally forms a protective oxide layer. Anodising increases corrosion resistance and gives a durable decorative finish. Powder coating provides colour and additional environmental protection. For outdoor use, the coating system should be selected according to exposure conditions.

How to choose

Choose 6060 or 6063 for visible profiles, architectural details and anodised surfaces. Choose 6082 for stronger frames and load-bearing structures. If the profile must be both highly decorative and structural, check dimensions and loads carefully before selecting the alloy. Kominox supplies aluminium profiles and helps choose the right alloy for each project.