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Thread: 7018 root pass

  1. #21
    Join Date
    Feb 2007
    Location
    Olive Branch Ms
    Posts
    129

    Default

    This is a good thread. I don't know squat about welding pipe and would never attempt it but it sounds really interesting. I have been trying to learn about it and threads like this are good source of info. Kudos to those with inputs.
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  2. #22
    Join Date
    Mar 2008
    Location
    Miramichi New Brunswick Canada
    Posts
    14

    Post

    Hey Jetmekdc-10, it is a great thread! I have learned so much already and I'm only 16! If I were you I would give pipe a try. I even did some TIG welding on a scrap piece of pipe a few times just to see what its like, and I'm not even close to being good, but if you don't try you can't learn. Thats what I figured out so far, the more you weld, the better you get.

  3. #23
    Join Date
    Feb 2007
    Location
    Olive Branch Ms
    Posts
    129

    Default

    I've beveled some pipe and messed with it in my shop but I would not take on a job that required a spec pipe weld. My hats are off to you guys up in Canada though. Colder than I could take. I wish there was a decent school to go to here in Memphis to learn pipe welding. I'd take it in a second! Most of the calls I get in my new venture are simple things that anyone decent with a mig can handle. Some mobile Tig stuff is starting to pick up though.,Adam
    Webb's Welding and Repair LLC
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  4. #24
    Join Date
    Mar 2008
    Location
    Miramichi New Brunswick Canada
    Posts
    14

    Post

    Thats great to just mess around with things, its how I learned to weld. Its to bad their's not a decent school to go to where you are. Its pretty sparse up here to, I'm taking mine through the school so I can still graduate, (still in grade 11) but I do the welding at the local union shop.

  5. #25
    Join Date
    Oct 2005
    Location
    British Columbia
    Posts
    241

    Default

    Quote Originally Posted by blackbeard's welding View Post
    out of pure curiosity, what is an "A","B","C" ticket in BC. ive got my sk. 6" "B" and my alberta small-bore "B". from what i understand, a "C" ticket here is only valid with the companyyou tested with, am i wrong?
    In B.C. you recieve training for and have to pass a variety of practical tests for each ticket level. Also an assortment of written exams on metallurgy, layout, codes and standards etc. School time and work experiance must total one year for each level. In all cases it is likely that any company you hire on to will have their own procedural test. Working from memory...
    'C' ticket....all position 6010/7018 open root plate, and all position 'CWB type' stick, mig, and flux core plate with backing strip
    'B' ticket....6G 6010/7018 pipe, mild steel open root tig on plate, aluminum tig on plate
    'A' ticket....6G 7018 root/cap on pipe, stainless stick root/cap on pipe, mild steel tig on pipe, stainless tig on pipe, intro to open root aluminum tig on pipe

  6. #26
    Join Date
    Nov 2006
    Location
    Benton, Pa
    Posts
    68

    Default 7018 vs 7018-1

    Can somebody explain what the difference is?

  7. #27
    Join Date
    Mar 2008
    Location
    marsden,sk
    Posts
    101

    Default

    thanx old sparks, that clears things up a little. it would be nice that in the near future all relative welding tickets could be standardized from coast to coast
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  8. #28
    Join Date
    Jun 2004
    Location
    nj
    Posts
    204

    Default

    Quote Originally Posted by Copperdog View Post
    Can somebody explain what the difference is?
    Low temperature impact spec. The -1 variant is specified at -50F, the regular at -20F

  9. #29
    Join Date
    Nov 2006
    Location
    Benton, Pa
    Posts
    68

    Default

    Thanks, I try and avoid welding at -50, so the regular ones should be ok for what I do?

  10. #30
    Join Date
    Jun 2004
    Location
    nj
    Posts
    204

    Default

    Quote Originally Posted by Copperdog View Post
    Thanks, I try and avoid welding at -50, so the regular ones should be ok for what I do?
    It isn't the temp when you put in the weld, it is the temp the weld will see in service. With either, the minimum temp of the base metal when the wed goes in should be 50F, 70F is better, unless there is a reason for more preheat.

    One place where the -1 variant is often required is marine work. It can get mighty cold in the north atlantic.

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