Plain Bar is used in conjunction with Cross Clamps, Single and double Clamp Bars to provide support and structure of a traction frame. Long Plain Bars may be used as top rails of a traction frame. Plain bar has a range of applications from reinforced concrete piers, bored piles, footings, walls, beams, columns, slabs, and precast products. Round bar is a Class N (normal ductility) bar and is available in 250 MPa for diameters 10 mm - 36 mm.