TIG welding stainless settings for clean, repeatable results

TIG Welding Secrets gives you exact tig welding stainless settings for sheet, tube, and sanitary pipe, proven on 304/316. Amperage windows by thickness and joint, pulse presets, gas flow and cup sizes, and travel-speed cues keep heat input low and colors in range. Each range includes visual checkpoints, so you can verify mid-bead and adjust before heat tint, sugaring, or distortion appears.

Written by an AWS CWI-led team and shop-tested across food-grade and fab work. You get purge tables, interpass limits, tungsten and filler matching, and troubleshooting that explains what to change and why. Confident, repeatable stainless TIG from tacks to final pass, without trial-and-error.

• Amps/pulse: DCEN; 0.8-1.2 A per thousandth; background 35-45%; duty 30-50%; 1-2 Hz or 100-200 Hz.
• Gas/cups: 100% Ar at 12-20 CFH; #8-#12 gas lens; back purge 15-25 CFH to 0.1% O2 or less.
• Tungsten/filler/technique: 2% lanthanated 1.6-2.4 mm, long taper; ER308L/309L; 10-15 degree torch; arc length about tungsten diameter.