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  1. mxms80809

    A-672 Gr 60 Thermal Conductivity?

    Thanks, I think you meant Table TCD. But anyhow, This is exactly what I was looking for. I didnt even realize this table was in ASME Section II.
  2. mxms80809

    A-672 Gr 60 Thermal Conductivity?

    Im taking a quick glance at the heat loss through an insulated pipe (A-672 Gr60). I however do not have the ASTM Spec at this time. Can anyone tell me the thermal conductivity of such material @ 75F. Thanks
  3. mxms80809

    Base Plate Design- Tension & Bending

    I have a HSS column that experiences tension and bending. I am having a hard time applying the AISC Column base plate design procedure, as it does not describe how to analyze an eccentrically loaded column. Any suggestions/ guidance would be greatly appreciated. Thanks
  4. mxms80809

    UG-45(b) Corrosion Allowance

    Thanks, You have all just confirmed what I thought was going on. Where can I find the Code Interpretation VIII-1-83-199 that was mentioned?
  5. mxms80809

    UG-45(b) Corrosion Allowance

    I have a 0.5" shell with an internal pressure of 5psi. A 2" sch 40 (strd pipe size) goes through the pressure boundary. The required thickness of the shell is 0.388". and the corrosion allowance is 0.04". When applying Section UG-45(b)[note that UG-45(a)<(b)] I get: 0.175 UG-45(b) [in] 0.428...
  6. mxms80809

    Pipe Stress due to Thermal Expansion

    Im trying to fully understand, I thought the expansion joint could either move axial or lateral not both. What is the advantage to placing the bellows at the elbow as opposed to the center of x? How do you determine the correct spring rate for the bellows? Thanks
  7. mxms80809

    Pipe Stress due to Thermal Expansion

    There is just over 1 foot in the z direction from pipe centerline. I know most would advise against an expansion joint, but at this point I need suggestions/references to properly design one into the system. Thanks
  8. mxms80809

    Pipe Stress due to Thermal Expansion

    Thanks for the suggestion. We discussed such an expansion loop, however there is not enough room, and its not very cost effective as we are dealing with 8" Pipe. Sorry looks like i forgot to mention the pipe size earlier.
  9. mxms80809

    Pipe Stress due to Thermal Expansion

    Thanks guys. It took me a while to find the suggested reading material, but I did find the Design of Piping Systems (extremely old) and Piping Handbook. Unable to locate the others. The ones I did get are valuable resources, Lots of great information. I have evaluated my system and have...
  10. mxms80809

    Pipe Stress due to Thermal Expansion

    I have a stainless steel pipe system that runs about 35' along the x-axis and then 10' along the y-axis. The system is fixed at both ends. The working fluid is air, and temperature goes from 50F to 300F. The system experiences thermal expansion due to the temperature increase. I have...
  11. mxms80809

    Large Opening in Rectangular Vessel

    jehan, I am fairly new to the whole B&PVC scene as I just graduated a year ago. Its a complex project that i have been assigned to analyze. This is just a tiny piece of the puzzle. It is not U-stamped but customer has asked we build it with all of the criteria as if we were to get it stamped. I...
  12. mxms80809

    Large Opening in Rectangular Vessel

    I have a rectangular vessel with stiffeners on 3 sides. There is a large non-circular opening on one side (where a heater is mounted on weld studs). I have analyzed the vessel according to APPENDIX 13, but am not sure how to approach the large opening and reinforcement required. The Vessel...

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