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Thread: welding 4140

  1. #1
    Join Date
    Jan 2012

    Default welding 4140

    I am repairing some farm equipment..have to tack weld a strip of 4140 (1/4x3/4x12") to mild steel for a wear strip..I have a stick welder and use 7018 as a good unversal rod..Not sure if it will work for 4140? Just a small project so didn't want to buy large quanities of eletrodes that will just go bad..
    Just a farmer

  2. #2
    Join Date
    Feb 2009
    Lodi, CA


    7018 is the correct rod to use.
    Obviously, I'm just a hack-artist, you shouldn't be listening to anything I say .....

  3. #3
    Join Date
    Jan 2012


    Thank You...There is so many special rods, alloys, and etc. out there make things confuseing. My head has't got room for the complicated stuff.
    Thanks again..

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