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  1. #1
    Join Date
    Dec 2008
    Location
    Highlandville, Mo.
    Posts
    14

    Default Flux Core vs. Mig Wire with gas

    Is there a difference in the quality of welds other than looks between the 2 different wires? On mild steel.

  2. #2
    Join Date
    Jun 2004
    Location
    virginia
    Posts
    74

    Default

    Flux-core gives you better penatration,burns in a little deeper.But it does also make for a little more cleanup,a wire wheel on a grinder will take care of that.I like it and its all I use on my mig machine.

  3. #3
    Join Date
    Mar 2008
    Location
    Anchorage AK
    Posts
    344

    Default

    ESAB lists 8 self shielded wire products, 8 gas shielded, and over 30 gas shielded cored wires.

    Lincoln has over 40 products in the wire type electrode.


    I am sure if you did some reading you would find an electrode rod filler for your application


    "Quality of weld" please define. What are you building???

    Kind of like asking if a quality difference exists between traveling by Porsche or freight train.


    If you have 700,000 tons of material to move 1000 miles I would not be using the Porsche. But if you are going out for a drive in the country the train might be difficult to turn.
    Last edited by FATFAB; 01-25-2009 at 12:59 PM.

  4. #4
    Join Date
    Oct 2007
    Posts
    2,949

    Exclamation "MIG" Wire Weldments

    Quote Originally Posted by coop View Post
    Is there a difference in the quality of welds other than looks between the 2 different wires? On mild steel.
    There's a BIG difference in application. Certain types of UltraCore, Innershield and Outershield wire is pre-qualified for AWS D 1.8 Seismic Applications, solid MIG wire is not.

    Dave
    "Bonne journe'e mes amis"

  5. #5
    Join Date
    Mar 2008
    Location
    Anchorage AK
    Posts
    344

    Default

    Quote Originally Posted by davedarragh View Post
    There's a BIG difference in application. Certain types of UltraCore, Innershield and Outershield wire is pre-qualified for AWS D 1.8 Seismic Applications, solid MIG wire is not.

    Dave
    What if the OP is just fixing the kitchen chair, and not the Empire State Building? Is their a difference then?

  6. #6
    Join Date
    May 2006
    Posts
    180

    Default

    On the practical side.....For weld repairs on metal that will be painted, MIG is easier to work with than flux-core. Auto repair web sites http://www.streetrodderweb.com/tech/...ods/index.html note that after flux core welding auto body panels it is necessary to thoroughly clean the welds before grinding to remove any contaminants that may adversely affect adhesion of body filler and/or primer. Grinding the flux-core weld without thorough cleaning has the tendency to "smear" the contaminants into surrounding metal, compounding paint and filler adhesion problems.
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  7. #7
    Join Date
    Mar 2008
    Location
    Anchorage AK
    Posts
    344

    Default

    So in the end it all depends on the application when choosing a process and filler type.


    Much to be considered when asking about quality.

  8. #8
    Join Date
    Aug 2004
    Location
    Milan Michigan
    Posts
    1,677

    Default

    As Dave Deragh said, I had a AWS welding inspector at a show tell me that they do not have a certified weld proceedure for solid wire with gas.
    Only for the flux core.
    I never checked into it so I'm going on heresay.

    For general welding in a shop, I and most welders run solid wire with gas.
    For welding on cars, chairs, brackets, angle frames and railings.

    A shop that primarily welds structural would be more apt to run a flux core.

  9. #9
    Join Date
    Dec 2008
    Location
    Highlandville, Mo.
    Posts
    14

    Default

    Thanks everyone....All I use is solid with a 75/25 mix....just a little shop talk with some friends the other day and the subject came up,no one knew for sure but I told them I knew the place to find out.

  10. #10
    Join Date
    Oct 2007
    Posts
    2,949

    Default "Huh?"

    Quote Originally Posted by FATFAB View Post
    What if the OP is just fixing the kitchen chair, and not the Empire State Building? Is their a difference then?
    Are you serious? What do you think?

    Dave
    "Bonne journe'e mes amis"

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