Amazon.com: RMP Hot Rolled Carbon Steel Rectangular Tubing, 3 Inch x 2 Inch Sides, 11 Ga. Wall, 72 Inch Length : Industrial & Scientific
1 Pc of Cold Rolled Steel Flat Bar 1018: 0.125" x 6" x 24" - - Amazon.com
Cold Rolled Steel Round Bar 5" Diameter x 1-1/2": Amazon.com: Industrial & Scientific
1018 Steel Cold Rolled Round Bar 3/4" Dia. x 36": Amazon.com: Industrial & Scientific
18 Gauge Mild Steel Sheet Metal Plate. 12"x24". Cold Rolled Steel Sheets Offer a Variety of Outstanding Properties, Including Easy formability and a Smooth, Clean Surface, and is Easy to Weld.: Amazon.com: