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  1. #1
    Join Date
    Aug 2007
    Posts
    720

    Default Mig Welding Cast Steel

    Hey guys,
    I am going to MIG weld cast steel, is this an acceptable method?

    Thanks,
    Nick

  2. #2
    Join Date
    Oct 2008
    Location
    Edmonton, Alberta
    Posts
    89

    Default

    No. That's the short answer.

    Depending what you are going to weld, it's application, what kind of cast steel, will determine how it's welded. You can stick weld it, braze weld it, and even TIG it, but not with mild steel filler.

    Let us know what it is, and maybe give us a picture and we'll help you out.

  3. #3
    Join Date
    Aug 2007
    Posts
    720

    Default

    Quote Originally Posted by jasonspoon View Post
    No. That's the short answer.

    Depending what you are going to weld, it's application, what kind of cast steel, will determine how it's welded. You can stick weld it, braze weld it, and even TIG it, but not with mild steel filler.

    Let us know what it is, and maybe give us a picture and we'll help you out.
    It is not structural in any way. I need to weld some ornamental cast steel to an arbor that I am making. I knew that I could braze it, but I wondered since it was cast steel and not cast iron if it would be possible to MIG weld it.
    Thanks,
    Nick

  4. #4
    Join Date
    Mar 2007
    Location
    Oahu, Hawaii
    Posts
    2,469

    Default

    Not much of an expert on cast steel, but if it's ornamental, long as it is not too big, break, and fall on someone, hurting them, I can't see why not...I repaired my friend's kids moped...cast aluminum...bolt holes from the engine cover, broke up after he crashed it on the road, die grinder to open it up so I could reach the bottom of the holes, then filled them up with tig then re-tapped them.

    Cast steel? If it looks good, and not made in China, I'd try it......(Honestly, I did some kind of small project last year with cast steel...nothing structual or anything like that, I forget what it was) but mig came out fine....Do you have some scrap to practice with???
    good luck
    I'm not late...
    I'm just on Hawaiian Time

  5. #5
    Join Date
    Dec 2007
    Location
    alabama
    Posts
    746

    Default

    Cast steel welds fine,no necessary precautions. Weld it all the time on ornamental work .I use 70-S6 .
    2, XMT's 350 cc/cv
    1, XMT 350 vs
    1, TRAILBLAZER 302
    1, MILLER DVI
    1, PASSPORT PLUS
    1, DYNASTY 200 DX
    1, MAXSTAR 150 STL
    1, HOBART CHAMP
    1, HF-251 BOX
    1, S-74d
    1, S-75DXA
    2, 12-RC SUITCASES
    2, 30 A spoolguns

  6. #6
    Join Date
    Dec 2007
    Location
    alabama
    Posts
    746

    Default

    Quote Originally Posted by fabricator View Post
    Cast steel welds fine,no necessary precautions. Weld it all the time on ornamental work .I use 70-S6 .
    It does not have the same properties as cast iron. It is steel and welds the same.
    2, XMT's 350 cc/cv
    1, XMT 350 vs
    1, TRAILBLAZER 302
    1, MILLER DVI
    1, PASSPORT PLUS
    1, DYNASTY 200 DX
    1, MAXSTAR 150 STL
    1, HOBART CHAMP
    1, HF-251 BOX
    1, S-74d
    1, S-75DXA
    2, 12-RC SUITCASES
    2, 30 A spoolguns

  7. #7
    Join Date
    Aug 2007
    Posts
    720

    Default

    Well, you guys were right. I was able to MIG weld the cast steel with ease. Thanks for the advice...you guys are the best!!!!
    Nick

  8. #8
    turbo38t Guest

    Default

    I second that, any mild steel electrode will work.....or some 11018......I always weld cast steel bucket adaptors/shanks with either 7018, er70s6 or e71.....iron finnials for decoration are the same.....Dave
    Quote Originally Posted by fabricator View Post
    It does not have the same properties as cast iron. It is steel and welds the same.

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