I have some 316L tubing that has a wall thickness of 0.080" and a piece of Inco 625 tubing that has a slightly larger diamter, but the wall thickness is about 0.049. The 625 tubing slides over the 316L tube and I'm contemplating whether or not a fillet weld to join these 2 sections is a good idea.
On a side note, what kind of complications arise when welding 316L? I want to make a 4.5 ft long section of tubing out of 0.080" wall. I'm assuming that rolling a 4.5 ft long section and then welding it longitudinally would not be a problem, but what kind of variables should I take into consideration?...distortion, heat input, purging, etc?
Thanks