Cord you are running waaaaaaaaaay too cold. Turn up the AMPS!
Here is a stainless steel weld on mild steel. See how the weld flows?
Appreciate the feedback, but you have to reread post #1. My stainless welds look a lot better than these. Contrary to the above, I've actually found stainless to be pretty easy to stick weld. I'm the guy who writes the report to the owner saying they might have a problem and it's time to hire consultant to inspect the welder's work.