These are Light weight, Cold rolled High Tensile steel, Low cost, Economical, readily fabricated purlins
commonly used in PEB.
Galvanized highgrade steel conforming to ASTM A653 Structural quality Grade 50 with zinc coating G90, Available in 1.6mm, 1.8mm, 2.0mm and 2.5mm thicknesses
Secondary structural framing refers to C sections and Z sections, Grits, Eave struts, Wind bracing, Flange bracing, Base angles, Clips and other miscellaneous structural parts. Standard C & Z sections and Grits are roll-formed Z- sections with 64 mm flanges 200 mm deep. Eave struts are 200 mm deep with 100 mm wide top flange. Cold-formed members are designed in accordance with the American Iron Steel Institute