Aluminum Pipe Sizes, . These aluminum Schedule 40 pipes and pipe nipples are threaded on both ends, making them easier to disassemble for maintenance needs or temporary installations. 8 Ft. Material: Aluminum. Select a Size 12 SCH 40, 12 SCH 80. 500. Size. Thin wall aluminum tubing 1/8" through 12-¾" OD tube in 2000, 6000 series and other series + unlisted intermediate walls. 1. Send MTR. zrfr, ebuyj0, uyact, acph, opwd, ommfm, bc4q, vvf, qb, vpiojr,