Rectangular tube is manufactured in carbon steel. (Table 5)

• SAE1010 Cold Rolled – 0.7mm, 0.9mm, 1.2mm & 1.5mm.
• SAE1010 Hot Rolled (Pickled & Oiled) – 2.0mm, 2.5mm & 3.0mm.
• ISQ230 Z275 Pre-Galvanised – 0.8mm, 1.2mm, 1.6mm & 1.9mm.