THE ULTIMATE GUIDE TO CHANNEL STEEL DIMENSIONS

Steel C channels with parallel flanges are referred to as UPE, whereas U channels with tapered flanges are known as UPN.If a cross-section is symmetric about an axis (such as the U section about x axis) and its dimension perpendicular to this axis is h, then by far the most distant fiber lies in a length Y=h/2 in the axis. As a result, the final me