Saturday, September 21, 2019

[MW:30084] PQR for PTAW Process by ASME Sec IX

Dear Experts I would like to know below query on preparation of PQR as per ASME Sec IX, Process: PTAW by hardfacing overlay by Stellite 6 Powder 1. What is the current, voltage, Gas flow and Powder feed rate need to be maintained for 10mm and 25mm thickness plate. To which standard and reference i need to refer. 2. What is the pre heating and interpass temperature need to be maintained for P.No: 1,8,4,5A, 15E and to which standard need to refer 3. What is the hardness requirement for P.No: 1,8,4,5A, 15E during testing PQR? Which standard is mentioned this requirement? 4. Chemical analysis is mandatory for Co base as per ASME Sec IX , Table QW: 453 Kindly give your suggestion and feedback for the above doubts Thanks in advance

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