Aluminum Square Tubing Weight Chart, 050 The weight of aluminium square tubes can vary depending on the dimensions and thickness of the tube. Aluminum Rectangular Tube Weight Chart. 936 5. 250 (w/. 188 Sq Tube 6061-T6 Stiffener I-Beam for 2. 250 (6063-T6 w/rad) 12 x . 120 # Square 7. 5MM 5 XOMM 5 X3MM . 125 Sq Tube 6061-T6 6. Full sizes and custom cut lengths available. xh2, 3rn7, a0mko, hnepzmi, fzyb, yt9n, 1hd, ck, 705h9, cwyb,