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WELD PROCESS = TIG, GTAW, GAS TUNGSTEN ARC WELDING,
METAL TYPE = carbon steel PIPE TO STAINLESS FLANGE
THICKNESS = 3 inch SCHED 40 PIPE .300" wall
WELD TYPE = groove
JOINT TYPE = BUTT WELD
POSITION = ROLLED IN JACK STANDS
AMPERAGE = 105-125 AMPS
TUNGSTEN = 2% LANTHANATED, 3/32"
FILLER WIRE = 1/8” ER309L
POLARITY = DCEN
GAS FLOW = 20 CFH argon
CUP SIZE = 8
PRE FLOW = MANUAL
POST FLOW = 10
ADDITIONAL SETTINGS = ARGON PURGE AT 25CFH REDUCING TO 10 CFH AT THE END
TIPS: EXTEND ELECTRODE ENOUGH TO GET A DECENT ANGLE SO THAT WALKING THE CUP OR FREEHAND WELDING BOTH WORK WELL …
Aim for an arc length that is equal or less than the diameter of your tungsten electrode.
Torch angle can be forgiving provided your arc length is tight.Keep the hot tip of the filler wire shielded by the argon envelope from the tig cupSnip oxidized tip of filler metal before a restart