HEY yall, fixin' to look at some cryogenic work at an LNG plant down in the flat land. It's on pipe up to 8" SCHD 10, 304L to include fittings, flanges and valves. My experiance with LNG work is limited and after reading the CBI web on LNG materials, controlled ferrite seems to be an issue. I have used GTAW fluxcore for a welder qual years ago but have never used it in the field. SOOO my experiance with it is limited. My question is- is there a controlled ferrite GTAW FCAW electrode that can be used at -320F and still meet the .015 charpy requirement?