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  • Nathan128
    replied
    7018 root pass

    I've done this pipe test a few times and only seen it actually used in plants that have banned 6010 rods (and similar). The best I can tell you is play with your land and Gap and find what works for you. I found even 3/32 land and Gap worked for me. No pushing the rod and no dragging just straight 90 degrees. A lower heat setting and fit up is key! This is what I found for the 6g pipe test. Honestly your just gonna have to play with it. Watch what works for other guys and try it yourself. If it works keep it if not try something else. And I don't keyhole personally. Good luck

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  • ryanjones2150
    replied
    better late than never...

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  • getrichorweldtryin
    replied
    an actual reply that may help you

    Obviously he knows a 6010 rod would be much more useful on an open root and when using 7018 a backing plate is normally used. I am currently taking my a level in bc and we are doing open roots single V bevel 4 inch pipe in 2g 5g and 6g all 9018 yes all 9018 ROOT to CAP 9018 and this is what me must use to pass test. I have been working on this for awhile and ive found running a 3/32 - 1/8 land and a 1/8 gap works best (open up that 3/32 gap) using 3/32 9018 electrodes.. you want electrode a little smaller than gap due to high amount of flux on 18 series rods switching to electrode negative will also help. for 5g shed 80 4" pipe i run about 70 amps DCEN with my arc force set high enough so it wont stick , roughly 60-65 and keep very tight arc if it keyholes it will not work out well for you, i also slighty rotate my hand back and forth to help burn flux away evenly. For overhead sections i use about a 30% drag to throw metal up there, vert your gunna want to be straight if not pushing up a bit and flat depending on fit up at shrinkage ect i drag about 10 %my test last week was a flat and overhead open root on 3/8s plate like yours with 12 coupons total and i managed to pass all bends and nick breaks

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  • flange jockey
    replied
    i have a job in the near future which will involve filler and cap with these rods,to get some practice i tried root filler and cap the rods burnt well dc electrode neg. f/j
    Attached Files

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

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  • enlpck
    replied
    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

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  • blackbeard's welding
    replied
    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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  • Copperdog
    replied
    7018 vs 7018-1

    Can somebody explain what the difference is?

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  • OldSparks
    replied
    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

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  • apprentice welder
    replied
    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.

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  • Jetmekdc-10
    replied
    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

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  • apprentice welder
    replied
    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.

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  • Jetmekdc-10
    replied
    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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  • apprentice welder
    replied
    Thanks OldSparks, I didn't really know what they ment when they called them F3 and F4 tickets! I just knew what it allowed you to weld (structual welds with 6010/6011 and 7018) and what you had to do to get it.

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