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  1. orion952

    ASME Section VIII Div 1 paragraph UG-16(c)

    Can someone provide a plain English interpretation of this paragraph?
  2. orion952

    Levels of radiographic examination

    What is required for a radiographic examination level of RT-2 and RT-4?
  3. orion952

    preheat & post weld heat treatment of SA-387 Gr 11 Class 2 ( 1 1/4 Chrome-moly) material

    Ok, now I have conflicting recommendations. the only difference is I have class 2 material, not class 1 and my design temeperature is 250 F for one vessel and 650 F for the second vessel.
  4. orion952

    preheat & post weld heat treatment of SA-387 Gr 11 Class 2 ( 1 1/4 Chrome-moly) material

    I understand Section UCS covers the post weld heat treatment requirements. My concern is any required preheat for welding and if that preheat has to be maintained until the weldment enters the furnace for PWHT. This I undersatnd has been required or recommended for certain chrome-moly grades to...
  5. orion952

    preheat & post weld heat treatment of SA-387 Gr 11 Class 2 ( 1 1/4 Chrome-moly) material

    ASME Section VIII Div 1!
  6. orion952

    preheat & post weld heat treatment of SA-387 Gr 11 Class 2 ( 1 1/4 Chrome-moly) material

    What is required for preheating and post weld heat treatment of 1 1/4 Chrome-moly material?
  7. orion952

    post weld heat treatment of hydrogen storage vessel

    Is it recommended to post weld heat treat a vessel intended for hydrogen storage service when post weld heat treatment is not otherwise required.
  8. orion952

    UHX Fix Tubesheet

    I am also trying to determine Kj for a flanged & flued expansion joint. From a copy of Design of Process Equipment (third edition), chapter 6 walks you thru a design. Since I only needed a value for Kj to input into my software I only calculated Fj from this book which is the force required to...

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