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  1. Muza33

    heating rate applicable for normalisation of Dish end for pressure vessel

    Dear Experts, Does any heating rate (controlled heating rate degree celsius per hour)is applicable for normalisation heat treatment of Dish end for pressure vessels? i could not find any reference on code ASME 8 .
  2. Muza33

    SA 537 CL 2 Welding electrode

    Yes i cross checked ,and in API 650 it is mandatory requirement to match welding consumable minimum stress as per spec to material minimum specified stresshttps://files.engineering.com/getfile.aspx?folder=fea9cbb7-5fb0-455f-95d0-025ab41af032&file=API_650_WELDING_REQ.pdf
  3. Muza33

    SA 537 CL 2 Welding electrode

    Dear Experts, i have a material SA 537 CL2 30 mm basemetal ,as per ASME SEC 9 QW 422 Whose minimum tensile strength is 80 ksi, now the matching electrode will be E 8018 AS PER TABLE 3 SFA 5.5 whose tensile strength minimum is 80 ksi now if contractor proposes E 7018 (Whose minimum tensile...
  4. Muza33

    API 650 RT CRITERIA FOR BUTTWELDS

    Jstephen, Thanks a lot for clarification especially the second answer, i was not sure whether to take first 3 meter of each thickness of each welder (and even initially didn't consider in my RT scope),as clause 8.1.2 b says to follow clause 8.1.2 a(which applicable for below 10 mm) and not...
  5. Muza33

    API 650 RT CRITERIA FOR BUTTWELDS

    ALSO FOR 15 MM AND 21 MM ,30 MM one RT shall be taken in first 3 meter of welds as per clause 8.1.2.2 ? because RT is mentioned for each thickness ,even though already we have done RT done in first 3 meter of 10 mm itself
  6. Muza33

    API 650 RT CRITERIA FOR BUTTWELDS

    As per API 650 CLAUSE 8.1.2.2 b For thinner shell plate greater than 10 mm but less than 25 mm “In the lowest shell course, two spot radiography in each vertical joints shall be taken” Now for our tank, shell plate thickness are 10 mm,10mm,15 mm,21 mm,and 30 mm in this case we are already...
  7. Muza33

    PWHT requirement of shell plate buttweld for API 650 tanks if simulated PWHT required for plates

    Thanks for explanation, can i assume FTCO is abbreviation for clean out doors.
  8. Muza33

    PWHT requirement of shell plate buttweld for API 650 tanks if simulated PWHT required for plates

    yes it have clean out doors, and same will be done PWHT as per API 650 requirements as well as if any nozzles applicable as per API 650 requirements , my concern was why Simulated PWHT is done in test coupons and mechanical properties evaluated ,if we are only going to do PWHT only in nozzles...
  9. Muza33

    PWHT requirement of shell plate buttweld for API 650 tanks if simulated PWHT required for plates

    Dear Experts we are constructing crude oil storage tanks as per API 650, Now as per my understanding PWHT is only applicable for nozzle openings as per API 650,not shell buttweld, but now in drawing it is mentioned supplementary requirement for simulated PWHT of mechanical test coupons for our...

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