TIG CARBON STEEL 6 INCH SCHED 80 .430" WALL PIPE ROOT SCRATCH START VALVE TORCH

scroll down for details and settings

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

METAL TYPE = carbon steel PIPE


THICKNESS = 6 inch schedule 80 pipe wall thickness .430"

WELD TYPE = groove   

JOINT TYPE = BUTT WELD OPEN ROOT WITH 5/32” GAP AND ZERO LAND

POSITION = ROLLED IN JACK STANDS

AMPERAGE =  80-85 AMPS USING SCRATCH START AND VALVE TORCH

TUNGSTEN = 2% LANTHANATED, 3/32"FILLER WIRE = 1/8”

ER70S2POLARITY = DCEN

GAS FLOW = 20 CFH argon

CUP SIZE =  7

PRE FLOW =  VALVE TORCH 

POST FLOW =  VALVE TORCH

ADDITIONAL SETTINGS =  

 TIPS: EXTEND ELECTRODE ENOUGH TO GET A DECENT ANGLE SO THAT WALKING THE CUP OR FREEHAND WELDING BOTH WORK WELL.

trail out on thicker part of pipe wall before snapping out to avoid a crater eye. aka fish eye

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 cup

Snip oxidized tip of filler metal before each restart

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