Tungsten Selection & Prep

Select your welding parameters to get recommendations on the best tungsten alloy, diameter, and grind angle for optimal arc stability and penetration.

Amps
Used to determine the minimum safe diameter and grind angle.
Tungsten Recommendations
Recommended Alloy

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Diameter Size

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Grind Angle / Prep

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Grind Geometry
Included Angle Effects
  • Sharper Angle (e.g., 20°): Creates a wider arc cone. Good for low amperages on thin metals. Easier arc starting, but the thin tip melts away quickly at high amps.
  • Blunter Angle (e.g., 60°): Creates a narrower, stiffer, and more focused arc cone. Excellent for deeper penetration and longer life at high amperages.
  • Truncated Tip (Flat): Snapping off the very sharp tip prevents the point from melting and dropping tungsten inclusions into the weld puddle at high AC/DC amps.
Color Code Reference
Color Alloy Best Application
Blue		2% LanthanatedUniversal (AC/DC). Best modern default.
Red		2% ThoriatedDC Steel/SS. (Radioactive dust warning)
Grey		2% CeriatedLow Amp DC, Pipe, Thin sheet.
Green		PureAC Aluminum on older transformers only.