Elongation in 50mm (%) Alloy 1050 Bar. F. 60 (min) -. 23. Availability. Aluminium Alloy 1050A (Alloy 1050) is available in Plate, Sheet, Strip, Bar, Wire, Drawn Tube, Welding Wire, Forging Stock and Rivet Stock. Aluminium Alloy 1050 (Alloy 1050A) tube is available in many sizes from stock, however there is a minimum production of 30m.