Tungsten Electrode Selector Charts
Find the right tungsten electrode for your weld head, tube or pipe size and wall thickness.
Click any chart to open it full size — easy to read on a phone and ready to print for the shop.
Full PDFs are linked under each set.
AMI 8 & 9 Series Weld Heads — Electrode Selector
Covers 9-250 through 9E-7500, 8-2000, 8-4000 and 8-6625, including the AF, AFM, E and ER variants,
for inch (OD) tube and IPS pipe sizes — part number and arc gap for every size.
AMI chart — page 1 — click to enlarge
AMI chart — page 2 — click to enlarge
AMI chart — page 3 — click to enlarge
AMI chart — page 4 — click to enlargeDownload the AMI chart (PDF, 4 pages)
AXXAIR SATFX-52 / SATFX-76 / SATFX-115 — Electrode Selector
AXXAIR part numbers read SCEXX–YY.YY:
XX is the electrode diameter (16 = 1/16", 24 = 3/32") and
YY.YY is the electrode length in millimeters.
AXXAIR chart — SATFX-52 / 76 / 115 — click to enlarge
How to order
Know the weld head and the tube size? That’s enough — give us the weld head model,
the tube OD, the wall thickness and the quantity, and we’ll match the electrode for you.
| Length | Specify the length |
| Diameter | .040″, 1/16″, 3/32″, 1/8″, 5/32″, 3/16″ or metric equivalent |
| Included angle | Specify angle |
| Tip diameter | Specify tip flat diameter |
| Material | 2% thoriated, 2% ceriated, 1-1/2% lanthanated |
| Finish | Standard (20 RA) or polished (6–8 RA) |
Download the AXXAIR chart (PDF)
Don’t see your size?
If the size you need isn’t on these charts, reach out — we can help.
Our tungsten electrodes are precision ground to your specification: length, diameter,
included angle and tip flat. If you don’t know the part number, give us the weld head model,
the tube OD and the wall thickness and we’ll match it for you.