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Recent content by Cheops

  1. Cheops

    SA 240 904L, N08904, SB 625

    Thanks EdStainless for shedding the light on this issue. Cheops
  2. Cheops

    SA 240 904L, N08904, SB 625

    Thanks Marty. I agree with you that B16.5 should refer to A 182, not A 479. Classification under different material specifications has created a lot of confusion for a Fabricator I am working with. I hope this issue is addressd in the 2013 edition of the Code!
  3. Cheops

    SA 240 904L, N08904, SB 625

    Can anyone explain the difference between SA-240 N08904 and SB-625 N08904? The first is listed as Austenitic Steel and it is NOT listed in the allowable stress tables of ASME Sec II table 1A. It is also NOT listed in table UHA-23. The second is listed as a non-ferrous material under both...
  4. Cheops

    Possible Bug

    In my opinion, the interpretation covers the case of a full penetration weld between the nozzle neck and the shell. The pad does not necessarily have to be welded with full penetration. I realize that this is in conflict with UW-16.1(h) which indicates a minimum size of weld tc at the internal...
  5. Cheops

    Possible Bug

    It is not a bug. See Interpretation VIII-1-86-89
  6. Cheops

    FEA & MAWP

    The only way is to do it by trial and error. Even if you were outside Compress, you would have to look for the MAWP by trial and error
  7. Cheops

    Tube-to-tubesheet weldjoints or not...

    You will find useful information in Section IX paragraphs QW-202.6 and QW-193. The extent of qualification tests depends upon the criticality of the application. For critical applications (high pressure, highly corrosive, lethal or other dangerous fluids, high loads on the joint, etc... , it is...
  8. Cheops

    ASME VIII-2 training

    vesselguy, You indicated that you attended the Online course by Dr. Mokhtarian. Do you actually listen to his voice or do you have to read the material? I am interested to attend, but only if I would listen to his course. If I have to read, then I may as well read the Code myself. Thanks,
  9. Cheops

    Pressure vessels for use in Europe, Asia,Arab countries, South America

    Luiz, Does NR13 require compliance with ASME Code Section VIII Div. 1? Do you have to submit drawings to the authorities for a design review or acceptance? Can you indicate who should we contact to inquire about design review, inspection, certificaiton, etc... Many thanks.
  10. Cheops

    tilted nozzle 6 reinforcement area

    ggroppi, ASME issues official interpretations. The question is submitted to a committee. Be prepared to wait a long time before you receive an answer.
  11. Cheops

    Pressure vessels for use in Europe, Asia,Arab countries, South America

    Thanks, VeryPicky. Thanks, deanc. The info on HSBCT website is very good. Will contact the HSB regional offices to get more info. As for Europe, will contact one of the approved Inspection Agencies.
  12. Cheops

    Pressure vessels for use in Europe, Asia,Arab countries, South America

    Hi. I am located in Canada. We need to ship a demonstration unit containing pressure vessels, to Scotland, Norway, Sweden, Ireland, Brazil, Egypt, India, Algeria, and possibly other Arab countries (Saudi Arabia, etc...). Would anyone have information regarding the local regulations for design...
  13. Cheops

    tilted nozzle 6 reinforcement area

    Your approach makes sense. It is a matter of interpretation. The Code does not address the tilted nozzles. In my many years of pressure vessel design, I did not see any calculation done the way you describe it. Probably nobody thought of it? One note: you need to make sure that the limits of...
  14. Cheops

    RECTANGULAR VESSEL

    Codecalc (by Coade) does
  15. Cheops

    Flanges subjected to external moment

    Arto, I don't have Kellogg handbook for piping(I am a Pressure Vessel guy). Does it use a factor of 8 or 16 when calculating the equivalent pressure ? Thanks.
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