We carry Aluminum I-Beam 6061 that is compliant with the Aluminum Association and American Standard organization. 6061 aluminum is highly versatile and normally used for aerospace, marine, electronic, ornamental, machinery, and structural applications. 6061 has a good strength-to-weight ratio, above average corrosion resistance, good machinability, and is excellent for welding. 6061 i-beam stock is available in full size and custom cut lengths.