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Thread: Cast Iron

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  1. #1
    Join Date
    Sep 2013
    Posts
    18

    Default Cast Iron

    May be a stupid question, but can you mig weld cast iron. If so is there a certain wire or anything special I would need to know. Have an old syrup pot that has a crack in it. Any ideas????? Thank for the advise. TW

  2. #2
    Join Date
    Oct 2007
    Location
    Cave Creek Az
    Posts
    929

    Default

    Crown alloys 44-30 wire. $80 for a 2# spool.

  3. #3
    Join Date
    Oct 2013
    Posts
    10

    Default Cast Iron

    You should be preheating it first. And it will need it to cool slowly. If it will fit you can preheat it in a bucket of sand on a gas grill. Arc rods for cast work the best and cost only a few dollars.

  4. #4
    Join Date
    Apr 2012
    Location
    Western Pa.
    Posts
    190

    Default Cast Iron

    If memory serves me correct (it doesn't) the last time I ran out of Ni-Rod & walked up to local auto-parts store who carry small amount welding supply's (LWS-20 mile away) I paid $68.00 a Lb.

  5. #5
    Join Date
    Jul 2010
    Posts
    374

    Default

    Quote Originally Posted by Redfishtony View Post
    Any ideas?????
    Braze it?????

  6. #6
    Join Date
    Jul 2010
    Location
    Four Flags city
    Posts
    288

    Default

    Weld Mold 750
    Eureka 5545

  7. #7

    Default

    Check out Chucke2009 on YouTube. He has 2 or 3 good videos on this topic.
    =======================
    Miller 211 AutoSet
    Miller Dynasty 200 DX
    Thermal Dynamics Cutmaster 42

    "The Sleep of Reason Produces Monsters"
    Francisco Goya

  8. #8
    Join Date
    Sep 2013
    Posts
    12

    Default

    Quote Originally Posted by stickermigtigger View Post
    Check out Chucke2009 on YouTube. He has 2 or 3 good videos on this topic.
    i came across his videos last week. he explained WHY you cant weld aluminium with certain machines (need a lot of amps).....i didnt know why some machines were listed as "no aluminium"

    he likes to try things out....i like that, it makes me think

  9. #9
    Join Date
    Sep 2013
    Posts
    18

    Default

    Thanks for the info. I'll have to preheat with torch and see what happens.

  10. #10
    Join Date
    Oct 2013
    Posts
    23

    Default

    preheat weld with weldmold 705 or 706 post heat rap in fiberglass insulation let cool overnight

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