Great news! BHP (through Bluescope, Lysaghts, Fielders and every other steel manufacturer they now own) supports REVIT by hosting steel profiles, components and material maps in REVIT family format.
Register for free, then use either the flash based CAD Panel, or search for you steel profile using the Advance search and selecting REVIT as your program type. Incredibly comprehensive, and let's hope other manufacturers get the hint and incorporate REVIT in their product resources. Stay tuned.