Universal Steel Columns beam cutting into two by using a Black & Decker Angle Grinder

1: Black & Decker KG901K-GB 900-Watt Angle Grinder
2: METAL CUTTING DISCS 115mm x 3mm x 22.2mm[ 41/2" ] ANGLE GRINDER
3: 203mm high 203mm wide weight 46 Kg per metre
+ Web size 7.2mm
+ Flange size 11mm