H/I Beams in the PEB industry often refer to primary built-up members. Primary members consist of columns, rafters, beams etc. These are fabricated from high strength plates. Plates are cut to size and shape. Built up sections are made from these plates in Automatic Beam Welding Line by submerged arc welding.
Primary structural framing shall refer to the transverse rigid frames, lean to rafters and column, canopy rafters, columns (beams and column frames), bearing frame rafters and corner columns, and end wall wind columns.
Members fabricated from plate stock shall have flanges and web joined by a continuous welding process. These plates stock shall have maintain a standard yield strength and will conform to the physical specifications of ASTM.