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I'm running my trusty old Millermatic 200 that I bought new in the mid 80s. I ran a lot of ESAB 1/16 Flux Core (gas) with with Co2 on construction at the WTC Transportation Hub and really loved the way the welds went in hot fast and clean compared the standard no gas flux core we normally use in construction. The flux no gas stuff is good and fast too but the dual shield stuff was like pressing the easy button. The company brought in the gas because the inspection was so rigorous and the ESAB Coreshield 8 (5/64) wasn't cutting it. I know a lot of welders didn't love the core shield 8 compared the lincoln Innershield NR-233 or the hobart xlr-8 witch are all the same class flux core wires, of those 3 straight polarity wires i always thought the lincoln was the most consistent but you could find the sweet spot with each and do fine. Now that i'm setting the old millermatic up and i want to find the best option for a flux core gas wire that works with 75-25. It looks like a top contender is the Lincoln UltraCore® 71A85 which comes in 15 lb spools .045. I can run the bare wire fine but i just know that the out of position work comes out sweet with the flux gas combo. My welding needs for projects are building trailers, jigs a homebrew sawmill, mixed steel and wood slab furniture, aluminum skiff building. I might also use flux gas setup might to build a small work barge. I would love to hear any opinions and experience on the ultra core and any others I see Blue Demon which i never really heard of has some too.Those are a couple of dual shield full penetration welds from back in 2011 at ground zero reconstruction. Probably 4-inches thick with cooper-heat the first one has a buildup because the joint was out of plain all the welds were flush ground.
Reply:My favorite gas shielded flux core is the Lincoln 71M. It runs on C25 or pure CO2. https://www.lincolnelectric.com/asse...d71M/c3101.pdfThe 71A85 doesn't run so hot on C25 gas, despite what they say. Willie B has struggled with 71A85 wire on his millermatic 252. The 71M also comes in 0.035 diameter wire which may be useful for you in case the MM200 doesn't have the balls to run 71M in 045 (which honestly, I think that machine is borderline 71M in 045).Miller Multimatic 255
Reply:I've had good luck with esab 7100 ultra in .045. I use 75/25 gas as well. Esab wire, at least from my supplier is considerably less expensive than Lincoln wire
Reply:I have heard good things about ESAB Dual Shield wires, I have to try a roll.Miller Multimatic 255
Reply:I haven't used too much flux core but I'm on an 18kg roll of Lincoln Outershield 71E-H in 045 and it's very, very easy stuff to run.Edit: using it with trimix equivelent to 80/20Last edited by Munkul; 2 Weeks Ago at 10:52 AM.Murphy's Golden Rule: Whoever has the gold, makes the rules.
Reply:From 1980 to 2004 I use E71T-1 0.052" with CO2 for all shop welding. It good if your welds could be xray someday. I used CO2 as keep cost down and buy 50 to 60 pound coils about 5 coils at time. Dave
Originally Posted by Eelspike
I'm running my trusty old Millermatic 200 that I bought new in the mid 80s. I ran a lot of ESAB 1/16 Flux Core (gas) with with Co2 on construction at the WTC Transportation Hub and really loved the way the welds went in hot fast and clean compared the standard no gas flux core we normally use in construction. The flux no gas stuff is good and fast too but the dual shield stuff was like pressing the easy button. The company brought in the gas because the inspection was so rigorous and the ESAB Coreshield 8 (5/64) wasn't cutting it. I know a lot of welders didn't love the core shield 8 compared the lincoln Innershield NR-233 or the hobart xlr-8 witch are all the same class flux core wires, of those 3 straight polarity wires i always thought the lincoln was the most consistent but you could find the sweet spot with each and do fine. Now that i'm setting the old millermatic up and i want to find the best option for a flux core gas wire that works with 75-25. It looks like a top contender is the Lincoln UltraCore® 71A85 which comes in 15 lb spools .045. I can run the bare wire fine but i just know that the out of position work comes out sweet with the flux gas combo. My welding needs for projects are building trailers, jigs a homebrew sawmill, mixed steel and wood slab furniture, aluminum skiff building. I might also use flux gas setup might to build a small work barge. I would love to hear any opinions and experience on the ultra core and any others I see Blue Demon which i never really heard of has some too.Those are a couple of dual shield full penetration welds from back in 2011 at ground zero reconstruction. Probably 4-inches thick with cooper-heat the first one has a buildup because the joint was out of plain all the welds were flush ground.
Reply:On most of the construction projects the flux core no gas worked fine and the ESAB 1/16 wire with the gas was really good at the trade center witch was a bridge code D 1.5 fracture critical job with a lot of extra oversight. We were running mostly Miller XMT 350s with LN 25s but a few of the Miller digital readout feeders. Lately we get XMT 450s and full digital control at the feeder which is great. The Co2 was a pain with the heaters stop freezing going out and all the wind shielding false work we had to do but it welds clean.I know the MM 200 is under gunned but the .045 with the core probably has about the same metal as .035 bare wire. The Lincoln comes in smaller spools so that's attractive to start. It the same with the Co2 I would just as soon deal with the C25 that have to get Co2. Not looking to do real production and if that becomes important I would get a bigger inverter setup. Have 300 amp stick and tig capacity already.
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Originally Posted by Eelspike
I know the MM 200 is under gunned but the .045 with the core probably has about the same metal as .035 bare wire. The Lincoln comes in smaller spools so that's attractive to start. It the same with the Co2 I would just as soon deal with the C25 that have to get Co2. Not looking to do real production and if that becomes important I would get a bigger inverter setup. Have 300 amp stick and tig capacity already.
Reply:That MM200 will do fine with .045 dual shield. Bonus with the 75/25 gas is less voltage is required to run it. The downfall to 75/25 is that it doesn't have the same cooling effect regarding duty cycle on the mig gun as CO2 has more effective cooling.
Reply:I've run the Blue Demon 71M on Argon/CO2, and just 100% CO2 in both the .035", and .045" sizes. Both sizes ran well on both my inverter mig, and my transformer mig machine. I ususally get it from Mcmaster-Carr in the 10 lb spool. Some people don't like it , not sure why. I've also run the Praxair store brand wire, which ran well also. Even the really cheap-o stuff (welders choice) from MSCDirect ran well for me. I've only run one spool of lincoln .035" but I don't remember the exact number, seemed to weld the same as the others.My biggest problem with wire is storage. I'll wind up with half a roll leftover, and it will go bad out in my garage by the next time I need it (corrosion).I keep meaning to put it in a ziplok bag with a dessicant pack, but sadly, I hardly ever do.good luckAirco 250 ac/dc Heliwelder Square waveMiller Synchrowave 180 sdMiller Econo Twin HFLincoln 210 MPDayton 225 ac/dcVictor torchesSnap-On YA-212Lotos Cut60DPrimeweld 225 ac/dcPrimeweld mig180Miller AEAD-200
Reply:Thanks, a lot of useful replies! The fabrication work i anticipate is not very demanding but it's good to have all the opinions on the gas shielded flux core. I will try the Lincoln UltraCore® 71A85 wire first just because Lincoln has done so much for American Arc Welding education. I feel the millermatic 200 will push .045 ok for my needs but i will find out.
Reply:I had a terrible time with 71A85 using 75% argon. I finally used up the roll & replaced it. The guy at Maine Oxy said it won't work with 75% gas He sold me Lincoln 71A75 & I've had a much better experience.
Damn, I can't make it vertical in the photo.Last edited by Willie B; 2 Weeks Ago at 08:32 PM.An optimist is usually wrong, and when the unexpected happens is unprepared. A pessimist is usually right, when wrong, is delighted, and well prepared.
Reply:Wow great thread didnt know you could do thatRetired Old GuyHobart 210Lincoln AC/DC 225/125 Tombstone Evolution 14 Saw
Reply:The Esab website has pretty good descriptions on what wires work with what gasses . If I remember they have plenty of choices in the dual shield category. Have run .045 in co2 with esab 7100 in MM200 with good results.
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Originally Posted by NotaVegetarian
Wow great thread didn’t know you could do that
Reply:I agree 👍 Dave
Originally Posted by Louie1961
Yeah, dual shield flux core is a great tool for a wire feed welder, especially for heavier material and out of position stuff. It has weld qualities as good as or better than 7018 welding rod, but without having to change rods every 8-12 inches, and it is much easier to run vertical up and overhead than 7018. The 035 wire extends the range/capability of 175-200 amp consumer grade MIG welding machines quite a bit for thick stuff
Reply:I started using in 1980 for shop work E71T-1 w/CO2. It replaced E7018 for all shop welding. If everything is right the flux will peal off after cooling. Dave
Originally Posted by NotaVegetarian
Wow great thread didnt know you could do that
Reply:That second video nails it on the vertical stringer and the cross section cut show it well, he also shows exactly what's up with the worm tracks when they show up shave a bit of voltage. We had tapered nozzles for doing root passes which helped too.
Reply:Thanks for my use because it can be pretty sporadic storage is an important consideration so the 10-15 pound spools are best. I know for work welding large verticals I got it set to run nice fat stringers really clean a well tied in.
Reply:Sorry to change the subject slightly, but would you be able to run dual shield .035 on a Hobart 190? Havent found much information on that.
Reply:Should run but it is probably sort of in the low end of the parameters. If the machine runs .035 bare wire well it should do fine with .035 dual shield. I ran a lot of bare wire before running the dual shield and i think it's easier to run particularly for out of position work but there is a learning curve and a few rules like verticals must be run uphill and don't let the flux get ahead of the puddle.Last edited by Eelspike; 1 Week Ago at 05:08 AM.
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That's a pretty horizontal welded with ESAB Dual Shield welding by two shifts. 9 inches thick with cooper heat keeping it at around 350 deg f. I kept trying to stack it in vertical but the day welders kept sloping it.
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Originally Posted by AgDawg15
Sorry to change the subject slightly, but would you be able to run dual shield .035 on a Hobart 190? Haven’t found much information on that.
Reply:Have found the contamination to be a minor inconvenience as well. Didn't want to mention it as it may have been lucky...not 6010 like but pretty tolerant
Reply:I have been using Kiswel E71T-M from Amazon. Comes in 10 lb rolls and is about $3.50/lb vs over $7/lb for the Lincoln wire from LWS.So far so good as long as I keep the gas CFH high enough, and stickout correct. But I haven't tried any other dual shield wire so I have nothing the compare it to.
GlenHobart Champion 16Hobart Hefty CC/CVHobart Handler 140Lotos LTP5000D
Originally Posted by ArcTan
I have been using Kiswel E71T-M from Amazon. Comes in 10 lb rolls and is about $3.50/lb vs over $7/lb for the Lincoln wire from LWS.So far so good as long as I keep the gas CFH high enough, and stickout correct. But I haven't tried any other dual shield wire so I have nothing the compare it to.Attachment 1739386
Reply:The Kiswel I've been using does require gas. I use it with 75/25.Maine OXY wanted about $250 for that roll of ultracore that you haveGlenHobart Champion 16Hobart Hefty CC/CVHobart Handler 140Lotos LTP5000D
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Originally Posted by Willie B
I get confused at the sea of numbers. Is this actually gas shielded? Or is it non shielded flux core?
Reply:
Originally Posted by Willie B
I get confused at the sea of numbers. Is this actually gas shielded? Or is it non shielded flux core?
Reply:I run 71A85 on heavy equipment repair. I love it. It is stupid easy, in any position or direction."Where's Stick man????????" - 7A749"SHHHHHH!! I sent him over to snag that MIC-4 while tbone wasn't looking!
" - duaneb55"I have bought a few of Tbone's things unlike Stick-Man who helps himself" - TozziWelding"Stick-man"
Reply:
Originally Posted by Willie B
I get confused at the sea of numbers. Is this actually gas shielded? Or is it non shielded flux core?
Reply:The good stuff It was always to pricey for me. But when I was in shops that used only Lincoln you could smell the difference. Dave
Originally Posted by Willie B
I get confused at the sea of numbers. Is this actually gas shielded? Or is it non shielded flux core?
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发表于 2022-5-19 11:02:22