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  1. asbjornr

    How to calculate Thermal strength on ASTM A995 J93404

    Hi metengr, Yes of course, now I understand. Many thanks for sharing your knowledge. AsbjornR
  2. asbjornr

    Rusted Stainless Steel Plate

    Hi, We are delivering stainless steel equipment to ships. When we are delivering equipment like this and without coating, I always spesify material of 316L grade or 304L because of the marine conditions. asbjornr
  3. asbjornr

    How to calculate Thermal strength on ASTM A995 J93404

    Thanks metengr, then it should be ok using ambient working pressure even at low temperatures as long as it's a group 2 or 3 material without further calculations. I assume that the fact that some of these materials in group 2 or 3 are becoming weaker in a cold state, still allows ambient...
  4. asbjornr

    How to calculate Thermal strength on ASTM A995 J93404

    Hello metengr, Sorry, I didn't explain the problem well enough. The problem occurs when the temperature is outside of ASME B16.34; which lowest temerature is -29C. I work with valves for LNG, LEG and LPG which have temperatures -163C, -101C and -46C, thus I need working pressure according to...
  5. asbjornr

    How to calculate Thermal strength on ASTM A995 J93404

    Hi, I am currently calculating the shell test pressure for valve bodies in various materials and temperatures. This is done in order to find the weakest state of the valve body, and from that state determine ambient test pressure. This is no problem as long as I can find Temperature/pressure...

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