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  • Users: kcme2005
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  1. kcme2005

    Circumferential Weld Start & Stop Location Overlap

    I have a GTAW butt weld at the joint between two cylindrical SST peices (diameter approx 3/4"). Of 11 units tested, one failed a static pressure test with a crack forming in the weld. The location of the failure point is interesting to me as the crack is positioned immediately beyond the end...
  2. kcme2005

    What value of vibration would be required to overcome a known torque?

    I am using a 10-32 1/4" set screw with a nylon patch (for its "self-locking" properties) to hold a wire in place. This wire is non-moving, but the entire assembly can be subject to vibration. Value, direction, etc of possible vibration is unknown. We are concerned about the set screw loosening...
  3. kcme2005

    Fatigue Properties for 316SS

    Does anyone know where to find fatigue values for 316SS? This seems like it would be easily available, and easily accessible. But we have been unable to locate such information. We've look at ASTM, and ASME standards. We've also contacted our material vendors for the info, but they either...
  4. kcme2005

    Cemented Joint (for FM & ATEX Approval) Need Mat'l Suggestions

    I need a material suggestion for an adhesive to use in a cemented joint for an explosion proof enclosure. The material will go between a 316SS body and a ceramic transducer. We need the material to be fairly flexible so as not to put stress on the transducer and alter its output (especially at...
  5. kcme2005

    Cemented Joint (for FM & ATEX Approval) Need Mat'l Suggestions

    I need a material suggestion for an adhesive to use in a cemented joint for an explosion proof enclosure. The material will go between a 316SS body and a ceramic transducer. We need the material to be fairly flexible so as not to put stress on the transducer and alter its output (especially at...
  6. kcme2005

    Ceramic Al2O3 - Compatibility with Dry Cholorine Gas

    Does anyone know where I can find a compatibility chart for Al2O3 ceramic that will show compatibility with dry chlorine gas?
  7. kcme2005

    Machine Screw with Yield Stress Rating

    Does anyone know a good supplier where I can purchase machine screws with a certificate giving the yield stress rating? We are working on an ATEX listing and the agency is requesting the yield stress rating for a screw we are using. The cert we recieved from our vendor only gives the tensile...
  8. kcme2005

    Ethylene Glycol/Water Mixture - Vapor Pressure

    We are trying to calculate the vapor pressure of an Ethylene Gylcol/Water mixture. We are using pure ethylene glycol (no additives), and our mixture is 60% EG and 40% H2O. The Critical Pressure and Temperature of EG is: Pressure - 1116.8 psia Temperature - 733.3°F The Critical Pressure and...
  9. kcme2005

    B31.3, Unlisted Material 303SS

    We are trying to get a level control product a CRN (canadian registration number) through TSSA. The unit is made from a slug of SS, 2in in diameter by 5in length. It has NPT threads on the outside to engage in the process, and a 1 in hole bored half way in down the center axis for a float and...
  10. kcme2005

    B31.3 Unlisted Matieral 303SS

    We are trying to get a level control product a CRN (canadian registration number) through TSSA. The unit is made from a slug of SS, 2in in diameter by 5in length. It has NPT threads on the outside to engage in the process, and a 1 in hole bored half way in down the center axis for a float and...
  11. kcme2005

    SS Sheet Permeation

    Does anyone know where I can find information on the properties of SS sheet as it pertains to permeation at elevated temperatures? We have .001" 316L stainless steel sheet used as a pressure diaphragm with approximately 200 psi of Nitrogen behind it. We have run numerous units though aging...

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