TIG WELDING STAINLESS .063" WALL SANITARY TUBE WITH SCRATCH START RIG

scroll down for details and settings used

TIG welding sanitary stainless tubing is all about the purge and the inside of the tube. Of course you want the outside of the weld to look good too but the quality of the purge and smoothness of the root is the main desired outcome.

WELD PROCESS = TIG, GTAW, GAS TUNGSTEN ARC WELDING,  

METAL TYPE = 304L STAINLESS STEEL

THICKNESS =  .063" 

WELD TYPE = GROOVE WELD NO BEVEL 

JOINT TYPE = BUTT

POSITION = 6G

AMPERAGE = 45 AMPS

TUNGSTEN = 2% LANTHANATED, 3/32"

FILLER WIRE = NONE autogeneous

POLARITY = DCEN

GAS FLOW = 20 CFH argon

CUP SIZE =  7

ADDITIONAL SETTINGS =    

5 CFH ARGON PURGE

PRE FLOW = TORCH VALVE

POST FLOW = TORCH VALVE

TIPS: KEEP A FAIRLY TIGHT ARC AND WATCH TORCH ANGLE

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.  

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