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Recent content by Ajay Mehta

  1. Ajay Mehta

    Allowable design stress in ASME II Table 1-100

    Hello Gents, I have reproduced the clause UG-4 below; "UG-4 GENERAL (a) Material subject to stress due to pressure shall conform to one of the specifications given in Section II, Part D,Subpart 1, Tables 1A, 1B, and 3[/highlight], including all applicable notes in the tables, and shall be...
  2. Ajay Mehta

    Allowable design stress in ASME II Table 1-100

    Hi Mike, I am referring to ASME Section II MANDATORY APPENDIX 1 "BASIS FOR ESTABLISHING STRESS VALUES IN TABLES 1A AND 1B". In the appendix, in clause 1-100 "DERIVATION OF ALLOWABLE STRESS VALUES" there is a paragraph "Two sets of allowable stress values are provided in Tables 1A and 1B for...
  3. Ajay Mehta

    Allowable design stress in ASME II Table 1-100

    Hi Mike, Thanks again! I am using SS 304 material with Ys being above standard suggested in ASME II part D. So I am using the table 1-100 formula where Allowable is required to be the Lower of the two values derived namely 1) Ts/3.5 and 2) Ys/1.5. However there is a sub-paragraph and a Note...
  4. Ajay Mehta

    Allowable design stress in ASME II Table 1-100

    Hi Mike, Thanks for your prompt response. My interpretation from my above references is that in the cases of Austenitic materials it is allowed to choose Allowable strength between 0.66*Ys (Yield strength) and 0.9*Ys in certain applications as suggested even if that exceeds value of Tensile...
  5. Ajay Mehta

    Allowable design stress in ASME II Table 1-100

    [b]In ASME Section II MANDATORY APPENDIX 1 BASIS FOR ESTABLISHING STRESS VALUES IN TABLES 1A, Para 1-100 (a), if the 90% of Yield strength is allowed as Allowable stress in Austenitic Material and if it exceeds St / 3.5 (Ultimate strength / 3.5), is it still allowed? Para 1-100 (a) says: . (4)...
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