Welding C Channel. In the pictures below the differences can be seen clearly the taper flange reduces in. Ad Find China Manufacturers Of Welding Wire.
The cross members fit within the side rails and have a flange at each end to accommodate a center bolt. Two other bolts one on the top and one on the bottom of the connection point are also used. With a 22kg of c-channel it is so sure cannot lift the 6000kg.
That will be a very stout trailer with all the crossmembers notched you will have no twisting of.
My next welding project is building the support for a plywood floor. Improvements were made on the taper flanged channel by reducing the linear mass and improving the properties around the y-y-axis during the development of the parallel flange channel. The c-channel yield strength248MPa Ultimate tensile strength841MPa. Because Wellste extruded aluminum C channel has subtle wear resistance you can guarantee that it is free from gradual deformation and scratches.