I am using Shield Bright .045; thanks for the link. I had been to Esab, but missed that. I've been getting pretty good-looking verticals (providing I'm not draped on my belly sideways - LOL) since my first unit of 321 w/347. We were splicing house-bent channel, some 1/4 some 3/8, and I was @ 25+ volts pushing @275-300 ipm which is usually fine for 304 (a little less heavy-handed on 316, maybe) but was just obliterating the 3/8" 321 @ halfway up (I literally cried in frustration as I healed every keyhole and picked up my grinder). Looking it up that night, I learned that 321 loses nickel in the weld puddle, creating surface heat, so I thought less wire=less consumption=less heat generated in the weld puddle, which had seemed to work for running a successful bead in the vertical, even without 'walking' it, and I could push @ 25 more ipm for flats. I recently found info on its titanium stabilization and the Ti loss/Nb exchange when you use E347T. This current unit is much smaller and uses almost all 3/16 and a little 1/4". With exception to the torque-tube, a 92"l, 12" O, sched 40 (I think- @ 1/2" thick wall) pipe with 1/2" stiffener rings for the truss mounts, flanged with 1-1/2" plate flanges that will bolt it to the drive assembly. On that, I ran 24.5/250-275. I haven't found that sweet spot of spray transfer, yet, with this stuff. Although, with stainless & me, lower ranges usually end up globular transfer; I never seem to find spray transfer until 25.5+ v and above. I am afraid to run that hot on such a lightweight unit, from my previous experience, so I've been dealing with the extra pick-up. This unit doesn't have 'enough' to hide a bad weld. Don't ask about overhead- so sloppy you can barely see your bead.
Lawrence, you just blew me away; I've never heard of arc-blow! I hadn't looked it up before starting my reply, sooo... Wow. I never, ever thought of that. Our work surfaces are largely carbon with stainless cladding- inventory drops of plate or channel, carbon channel/angle horses, etc. I don't know if we have a stick machine... We must, I just don't know. We're all wire-fed and TIG processes. I found this forum through still researching this alloy, as I'm working it again and havent beaten it yet, as far as I'm concerned. There are three units in all, so I'll get plenty more practice. I'll keep playing with the wire, re-check my gas. My friend who flanged the drive /idler shafts was wondering if there was any gas other than c-25 recomended? Everyone at work who's ever welded 321 with 347 tells me how crappy it is, so you can see why I'm STILL seeking help. Thanks for all your advice and the links. I appreciate your reply.