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  1. #1
    porkchop4464 Guest

    Default Welding Grade 8 bolts nuts to 1/4 plate?

    I am wondering if it's Okay to weld grade 8 bolts to plate steel for a bracket? I only ask because I was thinking that there might be trouble between the different tensil strentghs of the two metals, but weld is weld, still would work, right? I was thinking that when you buy bungs to weld in for rod ends, they are high tensil too right? So why couldn't you weld a bolt to plate? Any comments or suggestions please ?



  2. #2
    Join Date
    Jan 2007
    Location
    wisconsin
    Posts
    237

    Default

    I'm certainly not a metallurgist, but I don't see why not. we have all welded grade 5's I'm sure. i don't think grade 8's have that much of a different make up.

    sgs

  3. #3

    Default

    Should work fine I have done it many times.

  4. #4

    Default

    The short answer is yes you can.

  5. #5
    Join Date
    Nov 2008
    Location
    in the garage, CO
    Posts
    120

    Default

    yes,

    jusy let cool by itself when done

  6. #6
    Join Date
    Jan 2008
    Location
    Vallonia IN
    Posts
    331

    Default

    When I weld a nut on the back of a plate I just weld it on a couple of flats to hold it in place. I also do it with a spare bolt installed so the nut is pulled down tight against the plate. Don't know that it matters but that way you are sure you don't damage the bolt you are going to use.

  7. #7
    Join Date
    Aug 2007
    Location
    Olalla, WA
    Posts
    263

    Default

    Its fine. I have even lightly brushed the coating off to get it down to bare steel and it still worked great. Just try and weld as much of the area of the bolt that you can (drill a hold through the plate and run part of the bolt through and weld the back side too if possible)

  8. #8

    Default

    works fine. If you have access to a small lathe machine a inner shoulder to the nut so it is centered in the hole you drilled.

  9. #9

    Default

    You can - just don't expect the bolt to be Grade 8 anymore. You will change its heat treat.

  10. #10
    Join Date
    Jul 2008
    Location
    Ohio
    Posts
    331

    Default

    Quote Originally Posted by RacerRick View Post
    You can - just don't expect the bolt to be Grade 8 anymore. You will change its heat treat.
    This is the answer

 

 
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