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Thread: Flux core self shielding wire

  1. #1
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    Flux core self shielding wire

    Has anyone tried running self shielding wires like NR-211 with shielding gas, and if so, what were the results?
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    Re: Flux core self shielding wire

    Lincoln is very specific in stating to 'not' use any shielding gas with self shielded flux core so I just never got around to trying to use it.
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    Re: Flux core self shielding wire

    I think I'm gonna try it, I think I have a roll of Forney .030 in right now I'll give it a try on both polarities with the C25. I had been wondering about and was just hoping someone had tried it.
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    Re: Flux core self shielding wire

    I tried NR211 with argoshield light, just out of interest, and it welded just like solid wire without gas - i.e. fizzing and popping and loads of porosity. Terrible idea

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    Re: Flux core self shielding wire

    The result is going to be an unnecessary increase in your welding cost. If you want to weld with gas shielded flux cor wire, buy some.
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    Re: Flux core self shielding wire

    I'm just curious as to how or if it would work, I'm happy with mig, flux or stick, you know what they say a bout curiosity & the cat!
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    Re: Flux core self shielding wire

    Innershield wire needs atmospheric elements for proper flux reaction. NR211 flux reacts with the oxidizing elements in the air to create correct alloying. Trying to use shielding gas with fluxcore defeats the flux in the wire. Absolute waste of time.

    EDIT: https://www.lincolnelectric.com/en-u...lectrodes.aspx

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    Re: Flux core self shielding wire

    for me the whole point of running innershield wire was the elimination of shielding gas. i guess it wouldn't hurt anything to try it out on some non load bearing scrap to satisfy your curiosity. afterward give it the sledge-o-matic test and report back.
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    Re: Flux core self shielding wire

    It would definitely be on something non-critical, probably more on the line of padding some beads on some scrap, & I won't go to much effort to try it, I've got some .030 Forney in the machine right now so it's just a matter of turning on the bottle, and trying the wire on each polarity which is swapping a dinse connector from one side of the machine to the other.
    Last edited by CAVEMANN; 03-14-2019 at 07:30 PM.
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    Re: Flux core self shielding wire

    Quote Originally Posted by CAVEMANN View Post
    It would definitely be on something non-critical, probably more on the line of padding some beads on some scrap, & I won't go to much effort to try it, I've got some .030 Forney in the machine right now so it's just a matter of turning on the bottle, and trying the wire on each polarity which is swapping a dinse connector from one side of the machine to the other.

    Just to satisfy your own curiosity go ahead and give it a whirl, noones gonna get hurt if you try it like that so why not? I don't think its gonna work but what the hell. I use NR 233 all the time and never had any desire to mess with what works even though I could if I wanted too. Im curious myself to see what you come up with though. Have fun you old mad welding scientist

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    Re: Flux core self shielding wire

    Curious to see what will happen too. I once thought about running just low pressurized atmospheric air through a gun once with gasless flux core, to cool the gun so I wouldn't have to stop as much as i was laying looooooooooong fillet beads in the hot california sun on shiny metal bins (one of THOSE days) with a low duty cycle gun.

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    Re: Flux core self shielding wire

    Not sure why anyone would want to "try it" when the results are already known - as posted by the wire manufacturers.

    In my opinion, the worst result you could get would be to have it seem to weld "fine" thus encouraging you to further ignore the manufacturer published information

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    Last edited by MinnesotaDave; 03-14-2019 at 10:33 PM.
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    Re: Flux core self shielding wire

    Good info MinnesotaDave. What if he was curious to see what kind of bead profile/look it would leave for artistic purposes? Be careful not to dismiss curiosities too quickly, sometimes they work put pretty well, even if completely without logical merit. That's my excuse for putting liquid paper on a bumble bee, anyway. (silly movie reference)

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    Re: Flux core self shielding wire

    Quote Originally Posted by SlowBlues View Post
    Good info MinnesotaDave. What if he was curious to see what kind of bead profile/look it would leave for artistic purposes? Be careful not to dismiss curiosities too quickly, sometimes they work put pretty well, even if completely without logical merit. That's my excuse for putting liquid paper on a bumble bee, anyway. (silly movie reference)
    Yeah, I don't play "what if." When people ask questions about artistic look and feel I'm happy to talk about that stuff
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    Re: Flux core self shielding wire

    Thanks Dave for that info, I always wondered myself and a young fella asked me the same thing a few weeks ago, and I told him the same thing I said earlier...why mess with whats been workin for years?...and now we know

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    Re: Flux core self shielding wire

    Curiosity got the best of me one day and I used a 75/25 shielding on with .068 NR-211 innershield just to see what would happen. The process resulted in a beautiful weld. However, the weld did have some small cracks if you turned the heat up.
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    Re: Flux core self shielding wire

    Well, I haven't tried it yet, got too many irons in the fire, it will happen tho, it has to, My parents were from Missouri, so I gotta have some of that "SHOWME " in there somewhere, I'll try to remember to post it up when I git-r-done. Right now I gotta get a bathroom floor fixed and finish running a dog fence.
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