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  1. Kelvigal1000

    Welding ANSI B16.5 Steel socket flange to 312 Stainless Steel flex hose

    Hi, We are a mounting a MC 331 LPG tank on to a truck frame and do all the related plumbing. We have a 312 SS flex hose that needs to be welded to a B16.5 steel socket flange. 1. I would like to know what filler material needs to be used. 2. Does the welder need to be qualified for this...
  2. Kelvigal1000

    12.5% Mill Undertolerance

    Thank you, jte !!
  3. Kelvigal1000

    12.5% Mill Undertolerance

    Thanks to everybody for the reply. The pipe we have is a 6" SA-53 Grade B Type E pipe.
  4. Kelvigal1000

    12.5% Mill Undertolerance

    Hi, I understand that the pipe wall thickness at maximum mill under tolerance is considered at 12.5%. Where can I find this information in the ASME code book ? UG-16(d) says "The manufacturing undertolerances are given in the several pipe and tube specs listed in the applicable tables in...
  5. Kelvigal1000

    Filler Metal Selection

    What is the best way to choose a process & filler metal for welding SA105 to SA612 ?
  6. Kelvigal1000

    A. Number for E8018 C1 H4R

    jwhit, Thank you for your response. 40 years in the field !! Thats amazing.... While looking up temperatures,should I look up base metal or filler metal's preheating and PWHT temperatures ? My questions are regarding a repair to be done to a MC331 pressure vessel. Thanks.
  7. Kelvigal1000

    A. Number for E8018 C1 H4R

    How to determine the preheating and post weld heat treatment necessary for E8018 C1 ? The base metals being SA612(head) and SA105(coupling).... Also, how to determine what kind of Non destructive examination is needed ? Pls. bear with the amateur questions. Thanks.
  8. Kelvigal1000

    A. Number for E8018 C1 H4R

    Thank you ! I found the A.Number. Its 10.
  9. Kelvigal1000

    ASME - Welding Procedure Specification

    Thank you jwhit. I am gaining better understanding of the procedures now.
  10. Kelvigal1000

    A. Number for E8018 C1 H4R

    Sorry, meant SFA-5.5.
  11. Kelvigal1000

    A. Number for E8018 C1 H4R

    Hi, How to find the A.No for E8018 C1 H4R ? I am looking in SFA-5.4 but dont seem to find it. Thanks.
  12. Kelvigal1000

    ASME - Welding Procedure Specification

    Hi, Thank you for the inputs. I am reading all the welding variables and trying to fill out the WPS & WPQ. About QW400, why is it that all the variables have a definition starting with 'change in' or 'increase/decrease', 'deletion/addition' ? Also, can one WPQ qualify more than one WPS ?
  13. Kelvigal1000

    ASME - Welding Procedure Specification

    Hi, We recently did a Repair on a MC331 propane tank. It was to fix a pinhole in the weld that joins the coupling on to a tank head. With all the paper work involved, I understand that we should also include a Welding Procedure Specification & Welding Procedure Qualification Record. My...
  14. Kelvigal1000

    Max Allowable Stress Value

    Hi, Thanks for the reply. It is for Specification DOT 400 Series cargo tanks. A1011 has been listed as authorized for construction of DOT 400 Series cargo tanks.
  15. Kelvigal1000

    Max Allowable Stress Value

    Hi, I am trying to find the max. allowable stress value & Tensile Strength Su, for A1011 Gr 50 material for performing stress calculations. I tried finding it in Section II Part D book, but with no success. Appreciate any help. Thanks

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