Hi All, I know there is a previous thread about this subject but it does not cover my question. I need to attach a piece of 4130 commercial heat treat tubing to 1018 plate. The tubing will be cut with a torch lengthwise (to make cee channel) and ground smooth and then welded to the plate. I'm using 4130 on recommendation from a heat treater. I need this assembly to be tough as it is the basis for a hand tool. After I weld this tube and plate together I understand I will have to stress relieve the weld. I was told also that I may have to heat the parts up prior to MIG welding. Anyone tried this before? Any suggestions would be appreciated.
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20 years ago