Aluminum Channel is most commonly produced in 3 standard shapes. American Standard, Aluminum Association and Architectural.

American Standard (Am Std) is similar in shape to rolled steel angles with traditional tapered flanges and rounded ends. Commonly used for structural applications it provides the highest strength of the aluminum channel shapes.

Aluminum Association (AA) has straight flanges (legs) which are typically thicker than the web (base). It has round corners on the inside of the web (base) of the channel and sharp square outside edges on the web.

Architectural (Arch) has square sharp corners both inside and outside and is typicall produced in smaller lighter guages with the thickness consistent on both flanges and web. Most commonly produced in the 6063 aluminum alloy.


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