PQR Qualification

[williamswilsonp]

Dear experts

Please reply with your suggestions for the below mentioned query,

We are going to conduct the pqr qualification test for base metal - SA 516 gr.70(P 1 Gr.1,2 to P1 Gr.1,2) as per ASME Sec.IX

Thickness of Base metal is 20 mm

Which type of heat treatment is required during welding
Preheat
Interpass heating
PWHT

Thanks in advance







Sent from Samsung Mobile

[José Juan Jiménez Alejandro]

Ok, please see:
Preheat: NONMANDATORY APPENDIX R. Of Section VIII Div. 1
PWHT: UW-40; UCS-66; Table UCS-56-1 of Section VIII Div. 1
Interpass Heating: QW-406 of Section IX.
Regards!.

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[Chirag Sandhane]

Dear sir,

First confirm which design code is applicable for your job, whether PWHT is required or not. Even though I am giving following suggestions.
1) For preheating refer Non mandatory A100 of section & non mandatory appendix of section VIII division I.
2) You can use 250 deg Celsius interpass temperature
3) For PWHT refer PW 39 of ASME section I & UCS 56 of ASME section VIII div.1.

Thanks & regards,
Chirag Sandhane