TIG WELDING 4130 1" THICK PREHEAT LAYWIRE

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How to Identify what type TIG torch you have...( don't worry, there are only 2 main styles of TIG torches)

When it comes to TIG torch parts, there are only 2 main types of TIG torches...#17, 18, 26  are one type.  

17 18 26 tig torch collet bodies

And #9 and 20 are the other type

9 20 tig torch collet bodies

So all you need to do is take a look at your current TIG torch and see which collet body matches the photos above and then order either a kit for 17,18,26 style torch or a kit for #9 and 20 TIG torch.

challenger kit 17 front
challenger kit 17 contents

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WELD PROCESS = TIG, GTAW, GAS TUNGSTEN ARC WELDING

METAL TYPE = 4130 chromoly 

THICKNESS = 1-1/4"

WELD TYPE = FILLET   

JOINT TYPE = TEE LAPJOINT

POSITION = 2F HORIZONTAL

AMPERAGE = 165 amps with foot pedal 

TUNGSTEN = 2% LANTHANATED, 3/32"

FILLER WIRE = 3/32” ER70S2

POLARITY = DCEN

GAS FLOW = 25 CFH argon

CUP SIZE =  12

PRE FLOW = .5 SEC

POST FLOW = 7 SEC

ADDITIONAL SETTINGS = 500F PREHEAT PRIOR TO WELDING

TIPS: KEEP A TIGHT ARC

 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

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4130 chromoly can be welded without a preheat using er70s-2 filler wire provided the thickness is .120" or less.

thicker 4130 needs a preheat to slow the cooling rate to prevent brittle zones.

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