what do you mean by equivelant section?
what I understad is that you designed a certain beam or column using specific standards and you would like to find the equivelant section in another standards.
it depends on the use of the section
for example if the section used as a beam so Ixx ,Zx, Sx and ry are the properties which you should compare.
if you use the section as a column under axial force only so the properties will be Area, rx and ry
as I said earlier the use of the section will determine which properties you have to compare .