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Recent content by dennjay

  1. dennjay

    Cracks appear after PWHT of a Fire Tube

    A 30" Dia. fire tube from a Treater has collapsed and was sent to reapir. this fire tube has been collapsed few times before. Once MPI was carried out we found only one crack on mitre weld. Then we ground the crack and re-welded and sent to oven for stress relieving. Once the tube arrived...
  2. dennjay

    NACE materilas selection & design specialist certification

    I am planning to take this exam in early next year. Does anyone has taken this exam before? I know this is a 4 hr. mutiple choice and True/false type questions exam. But I don't know where I can find practice questions bank? Any help would be greatly appreciated. [bigsmile]
  3. dennjay

    material damage to SA 106 Gr. B piping

    Thanks for every one for your valuble input. As metengr ask, Pipe design temperature: 350 C (662 F) Pipe design pressure: 10350 kPa (1500 psi) Pipe opeating temperature: 330 C (626 F) Pipe operating pressure: 9000 kPa (1305 psi) I am conducting replica analysis, metallographic analysis and...
  4. dennjay

    material damage to SA 106 Gr. B piping

    A pipe carrying steam was exposed to over temperature event for approx. 2 hrs. (180 C above the design temperature). This happened due to malfunction of VHP (very high pressure) let down valve. Results of the external visual inspection revealed that no permanent damage to the piping. However...
  5. dennjay

    PIPELINE ENGINEERING

    Hello; Does anyone knows where I can find CBT (CD), online or corrospondence training on following. Fundamentals of Pipeline Engineering Design and Construction Economics for Pipeline Engineers Asset Management of Pipelines. Thanks very much in advance. [bigsmile]
  6. dennjay

    Catodic Protection

    Hi; Does anyone knows where to find cathodic protection and protective coatings of pipelines on-line learning? I need detail learning of CP Design, Installtion and monitoring. Can not travel. Only online learning or CBT Thanks in advance
  7. dennjay

    metallurgy in power generation industries

    Can anyone suggests, where can I get relavent information on Plant shutdown inspection procedure. Specifically oil or gas plants. quick response would be greatly appreciated.
  8. dennjay

    metallurgy in power generation industries

    I am a metallurgist by profession. I would like to expand my knowledge in metallurgical problems, metallurgy in plants components etc. in power genration industies eg; petroleum refineries, gas manufacturing plants etc. Can anyone suggests where I can get information on this (books/journals...
  9. dennjay

    metallurgy in power generation industries

    I am a metallurgist by profession. I would like to expand my knowledge in QA/QC procedures in terms of metallurgy in power genration industies eg; petroleum refineries, gas manufacturing plants etc. Can anyone suggests where I can get information on this (books/journals etc?) Thanks.

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