Aluminum Square Tube, Aluminum, 6063 Alloy Type, 2 3/4 in, 3 ft L.
125 in Wall Thickness, Wall Thickness Tolerance +/-0.Aluminum Square Tube 6063, Aluminum, 6063, T52, Square, 36 in Overall Length, 2 3/4 in Inside Width, 2 3/4 in Inside Height, 3 in Outside Width, 3 in Outside Height, 0.008 in, Fabrication Extruded, Heat Treatment Tempered, Heat Treatable Yes, Mechanical Finish Mill, Yield Strength 31,000 psi, Tensile Strength 35,000 psi, 73 Brinell Hardness, B17 Rockwell Hardness, Includes Material Certificate Yes, Standards ASTM B221.