Key Considerations When Selecting Corner Aluminum Extrusions

  • By:Naview
  • Date:2024-06-07

Aluminum extrusions are widely used in various industries, from construction to transportation, due to their exceptional strength, durability, and versatility. Selecting the right corner aluminum extrusions is vital for ensuring optimal performance and meeting specific project requirements. Here are some key considerations to keep in mind when making your selection:

Material Selection

The choice of aluminum alloy used in the extrusions directly impacts their properties and suitability for different applications. Common aluminum alloys used for corner extrusions include 6061, 6063, and 6005.

6061: High strength, corrosion resistance, and weldability

6063: Moderate strength, excellent corrosion resistance, and ease of fabrication

6005: Good strength, formability, and anodized finish

Shape and Dimensions

The shape and dimensions of the corner extrusion are determined by the intended application. Common shapes include L-shaped, T-shaped, and U-shaped extrusions. The dimensions, such as leg length, flange width, and wall thickness, should be carefully considered to ensure structural integrity and proper fit.

Surface Finish

The surface finish of the corner aluminum extrusions can enhance their aesthetics and performance. Common surface finishes include anodized, painted, and powder-coated.

Anodized: Electrochemically treated to create a protective oxide layer, improving corrosion resistance and wear resistance.

Painted: Coated with a layer of paint to provide a specific color and enhance protection.

Powder-coated: Electrostatically applied powder coating provides a durable and scratch-resistant finish.

Mechanical Properties

For structural applications, the mechanical properties of the corner aluminum extrusions are crucial. These properties include tensile strength, yield strength, and elongation. The required mechanical properties depend on the load-bearing requirements of the intended use.

Tolerances and Precision

The tolerances and precision of the corner aluminum extrusions directly affect their fit and function. Tight tolerances ensure precise alignment and prevent gaps or misalignments. The required tolerances should be specified based on the specific application.

Cost and Availability

The cost and availability of the corner aluminum extrusions are also important considerations. The cost of the extrusions is influenced by the material, shape, dimensions, surface finish, and quantity ordered. Availability refers to the lead time and accessibility of the extrusions. It is essential to balance cost and availability to meet project requirements and timelines.


Selecting the right corner aluminum extrusions requires careful consideration of various factors, including material selection, shape, surface finish, mechanical properties, tolerances, cost, and availability. By considering these key aspects, you can choose the optimal extrusions for your specific application, ensuring optimal performance, aesthetics, and durability.





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