Tig Welding sched 40 Carbon pipe to stainless flange root pass purge settings

scroll down for settings

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

METAL TYPE = carbon steel PIPE

THICKNESS = 3 inch  SCHED 40 PIPE

WELD TYPE = groove   

JOINT TYPE = BUTT WELD

POSITION =   ROLLED IN STANDS OPEN ROOT WITH 1/8” GAP AND ZERO LAND 

AMPERAGE = 95 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

tig kits banner 1
tig welding pipe
WTT-Banner-first-order10-percent-2025

Enjoy this page? Please pay it forward. Here's how...

Would you prefer to share this page with others by linking to it?

  1. Click on the HTML link code below.
  2. Copy and paste it, adding a note of your own, into your blog, a Web page, forums, a blog comment, your Facebook account, or anywhere that someone would find this page valuable.
var l = window.location.href, d = document; document.write('<form action="#"><div style="text-align:center"><textarea cols="50" rows="2" onclick="this.select();"><a href="'+l+'">'+d.title+'</a></textarea></div></form>');