ok. I have the tubing priced out from AED for both ERW mild steel as well as chromoly. Both are .095 thickness but obviously the chromoly would be stronger and is a little more expensive. Either one will do and looks like will fit into what I'm wanting to spend. Now I just need to locate some "elbows" since AED does not sell anything but straight tubing. Service Pipe and Supply sells mild steel elbows but they were unsure as to if those could be welded to chromoly. Having never worked this extensively with tubing I do not know either. Any thoughts on that? This is obviously assuming the mild steel "els" are matching diameter to the chromoly tubes. Using a basic mig welder also if that matters. Below is a pic of the bumper I managed to put together using that welder.
