Scotch bright. We use it.to.polish stainless. Can weld pipe grind,sand and finish with Scotch bright. And you won't even know where it was welded.
Because your not using the right grit. We polish stainless finish with as a final. You can leave a natural grain or make it smooth. I just did 100ft of stainless hand rail returns welded ,ground,and finished smooth. Do it for a living. Kinda like a professional so I know what I'm talking about. I would show pictures but usually the stainless jobs are usually in no camera zones...for me.But it will scratch the hell out of whatever you use it on. The green ones do anyway. I’ve never used the blue for rust removal.
Fine steel wool works great and doesn’t scratch - just takes off rust and patina.
I found some time and finally got it cleaned up today with a polishing wheel.