1020 DOM A513 Round Steel Tube | 1/4 OD X .035 Wall X .180 ID | 4 ft | 0.06 Lb/Ft

16Ga Black Square Tubing 1 Inch 12 Feet - Cut To Length

A513 HREW Round Steel Tube | 1/2 OD X 16 GA (.065 Wall) | 4 ft | 0.31 Lb/Ft

A513 Rectangle Steel Tube | 1 X 1/2 X 16 GA (.065 Wall) | 2 ft | 0.70 Lb/Ft

316/316L Stainless Round Bar | 1/8" Dia. | 6 ft | 0.04 Lb/Ft

Alloy 4140 Steel Round - Cold Drawn Annealed | 1/4 Inch | 2 ft | 1.00 Lb/Ft