Aluminum square tubing 4x4 10 ft NOTE: A-500 Grade B square and rectangular tubing is stocked in 20’, 24’, 40’ lengths. Select a Size This aluminum square tubing for sale measures 4" x 4" x 1/4" wall with 1/8" radius corners. Metals and Shapes. 20 Ft. Aluminum square tube runs anywhere from 20-foot, 21’1”, and 24-foot lengths depending upon the alloy. These are considered heat treatable alloys: The initial strength of these alloys is enhanced by the addition of elements such as copper, magnesium, zinc, and silicon. Metal Supermarkets Winnipeg is your one-stop metal supplier with over 8,000 metal types, shapes, grades and sizes. 58 Over long distances or lengths of tubing, square tubing maintains its strength. These tubes are available in different material grades of aluminum for applications requiring high strength and fatigue resistance in structural and architectural projects. 063 in. ushjoryfoirerrdrufqppqjaouecbeikxlhqujwpydutfqhiqjisobrmwdpqqxyffeg