The 46 kg/m version is lighter, making it easier to handle and cheaper per metre, but with lower bending and axial capacity than heavier UC sections.

UC 203x203x46 * Dimensions. h. 203 mm. b. 204 mm. tf 11 mm. tw 7.2 mm. r1 10.2 mm. * Secondary Dimensions. T. 161 mm. PB 1,190 mm. US - Cross Sections Universal Columns - Rainham Steel