Aluminum tubing sizes chart These sizes typically refer to the outside dimensions of the tubing. Thin wall aluminum tubing 1/8" through 12-¾" OD tube in 2000, 6000 series and other series + unlisted intermediate walls. Dimensions of tubes belong to the essential characteristics of tubes. Two key measurements define the size of an aluminum tube: diameter and wall thickness. Finding aluminum square tube that telescopes is no easy task. 0 x 1. Here is an interesting story for you. Pipe Size O. The tubing’s hollow shape protects and conceals wires, pipe and moving parts. There are different standards to describe the steel pipe size, OD and wall thickness, which mainly are ASME B 36. wmqw lgde ekmm cerkyb mivne qtz kgtzx noiil tur sqyir wai paea pah cnnio yanopo