Aluminium sigma profiles are a specific type of aluminium extrusion that is shaped like the Greek letter sigma (Σ). This profile is characterized by a flat base and two perpendicular arms that form a right angle. The arms are typically of unequal length, with one arm shorter than the other.

Sigma profiles are often used in the construction of structural and framing applications, particularly in situations where high strength and stability are required. The flat base provides a stable surface for mounting or attaching to other structures, while the perpendicular arms offer support and stability to the overall structure.

Aluminium sigma profiles are commonly made from 6000-series aluminium alloys, which offer good strength, corrosion resistance, and weldability. These profiles can also be anodized or coated to improve their durability and aesthetics.

One of the benefits of using aluminium sigma profiles is their versatility. They can be easily cut, drilled, and assembled to create custom structures and designs. They are also lightweight, which makes them easy to transport and install.

Some common applications for aluminium sigma profiles include:

• Construction of frames and supports for industrial machinery
• Construction of shelving and storage units
• Fabrication of architectural structures such as canopies and awnings
• Use in the manufacturing of transportation equipment such as trailers and truck bodies.

Overall, aluminium sigma profiles offer a strong and versatile solution for a wide range of structural and framing applications. They are durable, easy to work with, and can be customized to meet specific project requirements.