Aluminum square tubing 6061 is highly versatile and ideal for fabrication projects in aerospace, marine, electronic, ornamental, machinery, and structural applications. 6061 aluminum offers a good strength-to-weight ratio, above-average corrosion resistance, good machinability, and excellent weldability. We carry 6061 square tubing stock in full-size and custom-cut lengths. Price and purchase online today and enjoy the convenience of having your order shipped directly to you.