I'm about to take on my first stainless project, and I'm looking for tips on finishing afterwards. Obviously I need separate disks, files, whatever so that I don't contaminate the stainless with iron; I also have already purchased some Citrisurf 9002 for the passivation. But I don't have a good feel for how much mechanical cleanup to do, and with what tools. There are going to be just 2 fillet welds at the ends of a 4" sched 40 pipe where it meets two oversized pieces of 1/4" plate (I'm hesitant to even describe this design after all the uproar over pressure vessels, but this has nothing to do with pressure; it's a stand for a robot arm that will be bolted to the floor). So what's your favorite cleanup tool for fillet welds (flap disks, grinding wheels, brush wheels, etc), and how much material do you remove?
Thanks,
Mike