Stainless Open root

  1. Northern sweden welding Member

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    26
    Location:
    Sweden
     
    olek, backpurge, lincoln17 and 2 others like this.
  2. Northern sweden welding Member

    Messages:
    26
    Location:
    Sweden
    Is this something that is used I the UK?
     
  3. olek

    olek Member

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    296
    Location:
    Paris, France
    I doubt of that , as they weld from right to left in UK ;)
     
  4. Only if your left handed but seeing as the video is showing a weld in 6G position you will always weld it upwards unless you are stoving it.
     
    olek likes this.
  5. olek

    olek Member

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    296
    Location:
    Paris, France
    Is there an advantage in widening the root gap ?
     
  6. You set the root gap in accordance with what you are welding, the gap on the video is what I would expect to see
     
    BarrieJ, Richard. and olek like this.
  7. olek

    olek Member

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    296
    Location:
    Paris, France
    Thank you, so it depend of material and material thickness, make sense , but I was not aware of that .
     
  8. Richard.

    Richard. Member

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    13,217
    Location:
    Cambridgeshire
    Not in stainless no. You need minimal gap to ensure good root pen and no more. Hang around too long bridging bigger gaps and it will pull and twist. I’ve never 5/6G a stainless pipe before but I know the nature of the material all too well.
     
  9. You're right in what you say Richard but when MMA welding stainless you need to ensure there is no danger of the root closing too much, with TIG you can generally get away with it but with MMA there is always a danger of flooding the root with slag. Just a personal preference
     
  10. olek

    olek Member

    Messages:
    296
    Location:
    Paris, France
    If the goal is to have all the slag backside I understand that having some space is comfortable.
    Stainless is loving more than steel?
     
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