This material is required to build a 25T trolley that will be moving a manipulator up and down a 100m track. We're really looking for mass rather than strength due to the fabrication of the rest of the structure. This material was previously supplied by Corrus here in the UK but they have since stopped production (initially they told us they did make it then changed their minds after we hand completed our designs!). If you know of any other country/manufacturer that still produces steel slab in approximately this dimensions I would be very grateful!