Dear Experts,
-- Need your suggestions/feedback for developing PQR /WPS for the following:-
Wet crude Sour service pipeline , ASME B31.4/31.8 , API 5 L Gr X60 ,ISO 15156 ,PSL2 , 24" ,12.7MM thickness, ASME Sec IX/API 1104 , Temperature range 0 to 90' C
My quarry:-
1)As per the applicable Aramco Standard ( SAES-W-012) , for Manual Welding process PQR can be qualified to either ASME SEC IX or API 1104, but many are insisting to use API 1104 to qualify as it is a pipeline . So kindly advise
2) Impact test required?
3)Suggested Welding Consumables for a) SMAW only b) GTAW & SMAW
4)Contractor is insisting for all pass Downhill welding using cellulosic electode E7010 for all passes,to avoid baking and storage requirements of Low hydrogen electrode(E7018).Is it possible ?
5)Hardness required for PQR?
6)Can this PQR be used for welding API 5L Grade B joints, without re-qualification?
Apologize for the lenghty quarry, waiting your valuable reponses.
Thank you
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