Dear Sirs,
--
Good day.
As per API 1104, we are going to run PQRs soon;
So, Please give your suggestion and comments for welding the following API 5L series of pipes with the selected Class of welding rods & Fillers :
First, let me know if the selected AWS class are OK to proceed or not ?
1) API 5L Gr. X42 : GTAW : AWS Class 5.18 ER70S-6 + FCAW : AWS 5.20 E71T-1C
2) API 5L Gr. X65 : GTAW : AWS 5.28 ER80S-Ni1 + SMAW : AWS 5.5 E8018-C3
3) API 5L X70 : GT : AWS 5.28 ER80S-Ni1 + SMAW : AWS 5.5 E9018M (OR)
FCAW : AWS 5.29 E91T1-K2C
Also recommend me for welding parameters such as Amps, Volts, Gases, Preheat, Post Heat, Interpass Temps with site links to make these PQRs successful.
Best Regards,
Saravanan Sornam,
Ansan-Si,
S.Korea
https://materials-welding.blogspot.com/
https://www.linkedin.com/groups/122787
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