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4130 Moly Links

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  • outlawfab
    started a topic 4130 Moly Links

    4130 Moly Links

    Hey guys I'm a little new to this TIG thing esp when it comes to picking fillers and tungsten. I did a search and couldn't find anything that was like what I'm doing so here it is... I have 2" OD 1/4" wall 4130 chromoly tubing for links on my mega truck and the weld in bungs are 4130 as well. I'm pretty sure to use the 2% correct? but what about filler? I've heard some people using a stainless rod on the moly. I know different applications call for different filler but I've also heard of people having luck with the er80s2. also the whole link bar is gonna be heat treated so will that change my use of filler? any help is appreciated.

  • H80N
    replied
    ER-70 S2... NOT ER-80....

    Please read this thread for clarity...

    http://www.millerwelds.com/resources...043#post314043

    Leave a comment:


  • Showdog75
    replied
    Originally posted by Showdog75 View Post
    If it's gonna be heat treated weld it with 4130 if not use er80sd2
    I was referring to normalizing/stress relieving.

    Leave a comment:


  • JerseyWelder
    replied
    Right, it's not heat treating chrome-mo it's normalizing it. Er80s2 will be fine.especially with both parts in chrome-mo
    Originally posted by dave powelson View Post
    ......and by "heat treat" you mean ?????

    normalize/stress relieve?

    full bore harden and temper?

    Leave a comment:


  • dave powelson
    replied
    "heat treated"

    ......and by "heat treat" you mean ?????

    normalize/stress relieve?

    full bore harden and temper?

    Leave a comment:


  • Showdog75
    replied
    If it's gonna be heat treated weld it with 4130 if not use er80sd2

    Leave a comment:

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