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Recent content by angel14

  1. angel14

    Minimum distance between two welds

    Hi, Which is the minimum distance to respect according B31.3 between two butt welds ? The piping is in carbon steel 3/8'' thickness. Can we overlap two welds or there is a minimum distance to respect between each weld? Thank you
  2. angel14

    SA-105N vs SA-105

    Hi, I am working on a piping project and I need to find a table showing dimensions ,class and rating for flanges SA-105& SA-105N. In which code & section I can find these informations? Thanks in advance
  3. angel14

    ALUM B209-6061-T6 vs ALUM B209-6061-T651

    Hi, Does somebody can explain to me the differnce between the 6061-T6 and the 6061-T651 ? There is one stronger or better than the other one ? Thansk in advance.
  4. angel14

    API-5L-B, DSAW / A672 GR.60 CLASS 22

    Hi, I am reading a specification giving me the choice between two type of pipe, API-5L-B, DSAW or A672 Gr.60 Class 22. Does somebody knows what is the major mechanical difference between this two kind of pipe ? Thanks
  5. angel14

    API INSPECTION

    I would like to know which certifications an inspector must have to be able to inspect piping and pressure vessel on a petrochemical site ? Thanks in advance
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