Ron , I'm called Tool a lot ,works for Me.
Ach! You're breakin My Heart. I use to live on 28a in front of N.hill development. Please have a lobster at the Silver Lounge for Me.
Back to welding. Anything as thick as a pencil preheat to 200 degrees with a weed burner. Local weld store sells heat crayons that melt at diff. temps.
On Hi risers,We tac. weld a weed burner on next connection to be welded. It's getting pre heated as We make the cap pass on finished one.
I think the most common weld problems with amature welders is NO PENETRATION. I was a pile Buck. We used salvaged I beams a lot,VERY RUSTY
On this We use 6010 Dc.5/32" BLOWS through the rust,deep penetration.
6011 for AC. Rusty,More Amps. change rod angle.almost verticle! This will flatten out Your Bead