TIG WELDING STAINLESS STEEL .120" WALL COPED TUBE

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

METAL TYPE = 304L STAINLESS STEEL TUBING 1-1/2"

THICKNESS =  .120" 

WELD TYPE =  COPED TUBE JOINT

JOINT TYPE = COPED TUBE JOINT

POSITION = FLAT

AMPERAGE = 100-120  AMPS.  

TUNGSTEN = 2% LANTHANATED, 3/32"

FILLER WIRE = .045” ER308L

POLARITY = DCEN

GAS FLOW = 20-25 CFH argon

CUP SIZE =  10

ADDITIONAL SETTINGS =    

PRE FLOW = .2 SEC

POST FLOW = 11 SEC

TIPS: GET THE PUDDLE MOVING WITHIN 3 SECONDS.

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.  

A few tips for TIG welding Stainless steel...

  • get that puddle established and moving within 2 seconds to prevent heat buildup.
  • use a gas lens with #8 or larger cup
  • sometimes using one size smaller filler rod helps
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