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  • Users: kunjhon
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  1. kunjhon

    Dear Expert, Kindly advise for t

    Dear Expert, Kindly advise for the below concern I have one WPS qualified by API 1104 Welder is Qualified by ASME section 9(GTAW, GTAW+SMAW) our scope is pipeline welding as per ASME B 31.4(water line) can I use this welder for pipeline manual welding using the WPS which was approved by API...
  2. kunjhon

    multiple WPS in the single production joints

    Dear Expert, Kindly clarify, Can I use more than 1 WPS in a single production joint eg: one WPS for SMAW another WPS for SAW, Can I use these two, For root/hot pass-SMAW wps For Fill/cap pass-SAW wps Note: The PQR combination of SMAW and SAW is not done to form a single...
  3. kunjhon

    Dear Expert, Kindly advise the P

    Dear Expert, Kindly advise the P No of the material 90/10 CuNi, UNS C70610 to BS 2871 I didn't find out from the table QW-422, ASME section 9. Kindly advise and support. It is needed prior to PWPS preparation
  4. kunjhon

    Validation and calibration of Welding equipment

    Dear Expert, Kindly define the difference between validation and calibration of the Welding machine.
  5. kunjhon

    CONSTRUCTION CODE

    hi Dear Kindly suggest to me a construction code for the Water pipeline project. we have to start sleeve welding at a road crossing Here Pipeline is RTR piping but the sleeve is CS then which code is need refer for the welding of sleeve
  6. kunjhon

    hi guys I have a doubt one we

    hi guys I have a doubt one welder qualified for the GTAW process and GTAW+SMAW combination process. Can I use the welding report/NDT report done by the GTAW+SMAW for the welder continuity renewal after 6 months ( For both GTAW, GTAW+SMAW)
  7. kunjhon

    Hi guys Kindly explain the below

    Hi guys Kindly explain the below by examples. I didn't understand When making root deposits only using GTAW, SMAW, GMAW, PAW, LBW, LLBW, and SAW, or combinations of these processes, a PQR for a process recording a test coupon that was at least 1/2 in. (13 mm) thick may be combined with one...
  8. kunjhon

    Hi guys I have one doubt regards

    Hi guys I have one doubt regards to the WPS I have an approved WPS with dia of the electrode is 2.5 mm (E 7018). my question is, can I use the 3.2 mm or 4mm size electrode of the E7018 because the dia of the electrode is a non-essential variable as per ASME section 9 Another question is one...

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