Super nice design

Hey Jeff, Roy is not available but I will chime in as best I can.  I have used solar flux on a paper mill shutdown on stainless open root pipe and it was just a mess.

About all you could say was that it did prevent complete sugaring of the root but welded like mud.   We were not able to remove the residue from the inside but judging from how hard it was to wire wheel the root pass before welding the hot pass, I would imagine it was be difficult.  High temp flux for silver solder is like that too unless you can soak the part in warm soapy water.

So I guess bottom line is that I dont think solar flux would have worked well for Roys job shown in this video,

hope this helps, 

Jody

Hey Lloyd, enjoyed speaking with you on the phone the other day... I don't have any experience with using Oxygen for plasma cutting but maybe we can flush some information out in future podcast calls.

Thanks, Jody

Agree with that 100%.  codes and specs like B31.1 are too vague on gap for socket welds

I would say it’s the gas. 98/2 would seem to call for spray transfer and 75/25 or pure argon won’t achieve a smooth spray

you are correct.  use gmaw mode with knurled rollers but dont tighten too much. JD and I made a video quite a while back using a lincoln 210 mp along with .035" dual shield wire using 22.5 volts and 310 wire speed.  That was for a 6 inch schedule 80 pipe fill and cap uphill so those would be some pretty good settings to start with for .035" DS wire.

75/25 argon/co2 

I think padding beads and switch hands every bead is a good drill with any rod.  I would start with E70 filler rod on a piece of 1/8 to 1/4" thick. switching hands makes you think harder about what is going on

Isaac aka @ICWELD on instagram uses  7/70 pressures....7 on acetylene and 70 on oxygen and I am pretty sure he said he mainly either uses a 000 or #1 tip for everything using those pressures.  He is one of the best at using a cutting torch I have seen. here is a link to one of his youtube videos where he talks torch tips. https://youtu.be/RQrvIOut6wg?si=3BXE3oDJaNHA_cSq

hi Richard, I try to list settings in every video but I guess I left them out of this one. I just uploaded an updated version of  the video  and edited the description to include settings of 18-19 volts and 200-220 inches per minute with .035" er70s6.  A more recent video using 18 volts and 200 inches per minute worked pretty well.   thanks for catching the omission

jody