Alloy: 6061 | Material: Aluminum | Shape: Square Tube | Production Method: Extruded | Height: 2 Inches | Wall: 0.1875 Inch | Item Length: 84 Inches Aluminum Square Tube 6061-T6 exhibits above average corrosion resistance, good machinability, high strength, light weight, good weldability, and the ability to be heat treated for even higher strength, all at an affordable price. 6061 is the most commonly used aluminum alloy in the world due to its positive characteristics. It is typically used in aerospace, automotive, cameras, couplings, marine hardware, electrical components, decorative hardware, structural applications, pins, brakes, pistons, valves, and bicycle frames. Tube is designed to act as structural support, whereas Pipe is designed to carry liquid/gas/material from one place to another. Aluminium is a silvery-white, lightweight metal. It is soft and malleable. Aluminium is used in a huge variety of products including cans, foils, kitchen utensils, window frames, beer kegs and aeroplane parts. It has low density, is non-toxic, has a high thermal conductivity, has excellent corrosion resistance and can be easily cast, machined and formed. It is also non-magnetic and non-sparking. It is the second most malleable metal and the sixth most ductile. It is often used as an alloy because aluminium itself is not particularly strong. Alloys with copper, manganese, magnesium and silicon are lightweight but strong. Aluminium is a good electrical conductor and is often used in electrical transmission lines. It is cheaper than copper and weight for weight is almost twice as good a conductor. UNS A96061, ISO AlMg1SiCu, AA6061-T6 This product weighs 11.17 pounds and meets the following specs: AMS-QQ-A-200/8, ASTM-B221