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  1. PaulEng

    Torque for NPT connections

    FLisa, I am looking for similar information on NPT torque values. I would be grateful if you could post any of the more useful information sources you have found. Thanks, Paul
  2. PaulEng

    Suitable steels for 20% H2S environment

    Does anyone have any knowledge on suitable steels for manufacturing equipment for use in a 20% H2S environment? Normally I would use AISI 4140 limited to 22RC but not at this elevated level of H2S. Thanks and regards, Paul
  3. PaulEng

    SWX , Win2KPro, & P4 graphic card recommendations

    Dean, Your set-up is almost identical to the one I use. P4 (512MB), SW 2001+ and Windows 2000 professional. The graphics card we use is the Quadro2 MXR. We have only been using it for three or four months but so far have found it an excellent entry level card and have had no problems with it. We...
  4. PaulEng

    Hydrogen Sulphide effects on low alloy steels up to 36Rc

    No problem Hush - it's been a good learning experience/discussion for me too!
  5. PaulEng

    Hydrogen Sulphide effects on low alloy steels up to 36Rc

    I design downhole tools for the petroleum industry and have a question with regard to the effect of hydrogen sulphide on low alloy steels with a hardness up to 36Rc. The normal route would be to use AISI 4140/45 with a maximum hardness of 22Rc. However, I have tools in a remote location which...
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