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  1. eng1978

    Temperbead Qual Section IX

    We completed the testing over the weekend and our hardness test with full out buttering just sqeeked by 350. Our sample with a simplified temperbead (which was suggested to me, ASME technique) was 400+. With a straight fillet relying on the subsequent passes to temper I would guess it would...
  2. eng1978

    Temperbead Qual Section IX

    hmmm...the cooling test (250 to 100) I was getting times of 11 seconds to 18 seconds. I didnt think I would be able to preheat that in any sort of reliable fashion. Maybe in the shop but in the field... I was aiming for 350 HV10 but do recognize that we can be somewhat higher since the rod...
  3. eng1978

    Temperbead Qual Section IX

    The work is for a API storage tank. From my expirence it would pretty hard to achieve the hardness without some sort of temperbead no?
  4. eng1978

    Temperbead Qual Section IX

    In this case yes. The client requires a section IX WPS and the conditions will require a temper bead to achieve the acceptable hardness values. The material is 516, 3/4" WT, 0.49 CE (ASME), and water as cooling medium. Temperature is going to be around 5 Deg.C day of the work. My issue...
  5. eng1978

    Temperbead Qual Section IX

    We are qualifying a hot tap procedure to section IX. What has been the approach to get around the thickness range limitation of fluid backing and >T in 290?

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