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downhill stick welding the rootpass on big bore pipe.

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  • downhill stick welding the rootpass on big bore pipe.

    what is the recommended gap,land,rod, and setting of rootpass welding downhill on pipe.
    i heard pipeliners weld downhill instead of uphill.

  • #2
    downhill stick welding the rootpass on big bore pipe.

    Pipeline welders that I have talked to down here in south Texas. Have told me root varies but they use a nickel for spacing approx. 1/8". They are running root with 1/8" 6010 5P+. Fill and cap is with an 8010 downhill pipeliner rod. Depends on size pipe but most are using 3/16" rods on the 8010s. All welds are run downhill.

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    • #3
      downhill stick welding the rootpass on big bore pipe.

      Don't start off running a 3/16 bead lol I rarely run 3/16 on a bead use 1/8 in or 5/32 on big bore pipe I'll run 5/32 with a heavy nickel land and use a two foot square fore a spacer otherwise run 1/8 in with a 3/32 gap ... Running downhill is way easier than step it in uphill .... Any other questions I weld pipe every day

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      • #4
        Do you just drag the rod downhill on the root pass Dr pipe??

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        • #5
          downhill stick welding the rootpass on big bore pipe.

          .....well that depends on the situation. If the gap is just right you can burn a good keyhole and follow it down the pipe with ease just applying pressure .... We call it a skate bead ... I prefer to weld a bead by whipping it in ...stepping down the pipe if a hole gets out of hand then step the rod up let the hole cool for a second and step back down .... Then grind your bead med. rare and run that hot pass in if you run a little hotter you will push that bead right in and you will push through the bead in places that may not be completely tied in ...

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