Hi everyone... this is a 3D part in Solidworks, STEP, IGS and STL formats. Had to "invent" some from the photos, but had dimensions from drawings of the 40mm and 80mm profiles, so the dimensions is accurate (except maybe for the not critical inside at the inner-corner (the non-symmetrical part).
C-Beam 3D CAD 2015-03-30
Drawing of C-Beam in Solidworks and also STEP, IGS & STL