Circular Hollow Sections (CHS) / Mild Steel Pipes come as a hollow tubular cross sections and have a much higher resistance to torsion that tapered flange beams. The density of the walls is uniform within the entire circle which makes this beams great for use with multi-axis loading processes.
1. Material : Mild Steel (Black Pipes)
2. Material : Galvanized Iron (G.I. Pipes)