Rectangular tube yield strength; 39k min. As low as 16. Steel rectangular tube is a hollow, rectangular-shaped steel member that is used in a variety of applications. Their unique combination of strength, durability, and versatility makes them indispensable in both structural and non-structural projects. This is the most versatile of the heat treatable aluminum alloys. Often used in structural applications due to it's strength and in architectural applications for it's ease of finishing. A519 is available in round, square, and rectangular profiles, and in special sections. Metal Supermarkets carries several different grades of aluminum rectangular tube, including 6061 and 6063. 4-2 thru 4-3 Rectangular Tubing . Bhushan Tube is Leading Manufacturers & Supplies of Alloy Steel Pipes, Api 5l Pipes, Astm A-53 Pipes, Astm Pipes, Boiler Tubes, Carbon Steel Pipes, Jindal Pipe Dealer, Ms Pipes, Seamless Pipes, Steel Tubes, Agency Of Jindal. ccmzviqxhoimahzumdshyielnowtaawoaezdnzpxooazdkfaewxpwzhxoigijjuubvwaxkepmo