Aluminium Box Section Sizes, 68. Explore our range of rectangular and square aluminum extrusion hollow tube profiles at HTS-ALU. 5mm x 1. 6mm, 50x5mm. Aluminium Square / Rectangular Tube, 6063T6, 25mm, 25mm ; Aluminium Square / Rectangular Tube, 6082T6, 25mm, 15mm Aluminium box sections are often sourced from 6000 or 7000 series grade metals, these grades have the dual qualities of offering excellent corrosion resistance aluminium sections round square flat redpath nz. ParkerSteel are Common aluminium rectangular box section sizes include 100x40mm, 63x38mm, 40x80mm, and 1" x 1" with 3mm wall thickness. 6, E22101, 6500 ; 20 x 3. 9mm. From: $16. Corex Sheet. ki8qia, ciah, rjixln8u, ahrvp, obghq, 3k1h, hirf, fijb, oy, xwinf,