I understand that you want to extract Weld Cross - Section to place it in the Drawing as a View.
And as a second condition also wanted to apply material to the weld.
I dont think there are any direct options available to do this. Usually the weld profiles are defined by the Weld Type & Weld Symbol that is used in the drawing.
Each weld type has a specific shape and is defined with parameters like Throat, Weld Length, etc.
Type of Weld > Fillet, Groove, Bevel, etc.
The standard weld symbols displays the industrial practice of communicating weld specification through Fabrication Drawing.
Maximum a Cosmetic weld can be enabled and the same can be highlighted in Solid works Drawing.
In the Part file / Assembly file, Right click on Weld Folder and select "Show Cosmetic Threads".
When using the part in drawing, set view to drawing to high quality, Shaded with edges.