AISC "Manual of Steel Construction - Allowable Stress Design - 9th Edition"
This will give you the properties of every common wide flange beam, trolley beam, channel, angle iron, square tubing, round tubing, t-section etc. It will also give much more information on how to analyze loads and design welded and bolted connections. Make sure to note section F when it comes to the lateral bracing requirements. Simply using the 60% yield stress of the material for the allowable stress may be misleading. Unbraced spans of only 20ft can reduce the allowable stress in some beams by as much as 50%!
weron4u
Sheboygan WI