Aluminum round tube stock is used widely for structural support in applications ranging from architecture to furniture, automotive accessories and more. Aluminum round tubing can be made as an extrusion or drawn aluminum tubing, and is available in a range of finishes, including anodized. We carry aluminum round tubing in 2024 | 6060 | 6061 | 6063. Whether you need small or large diameter aluminum tube, you'll find it at Online Metals, where you can easily price and order online and have your purchase delivered directly to you.