Product Description
Weldmark® 2% Thoriated Tungsten TIG Welding Electrodes – Ground Finish, Red Tip
Industry’s Most Trusted Electrode for DC and Specialty AC TIG Welding
Weldmark® 2% Thoriated (Red Tip) Tungsten Electrodes are the go-to choice for TIG welders demanding reliable arc starts, excellent longevity, and stable arc performance. Containing a minimum of 97.30% tungsten and 1.70–2.20% thorium, these electrodes are best suited for DC welding applications and select specialty AC work, particularly on thin-gauge aluminum and metals under 0.060".
The red tip makes identification fast and easy, while the ground finish ensures optimal conductivity and a smooth arc start right out of the package.
Key Features:
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Composition: 2% thorium / balance tungsten
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Finish: Ground for clean arc starts
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Tip Color: Red (AWS standard for thoriated tungsten)
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Polarity: Excellent for DCEN (electrode negative) TIG welding
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Performance: High current-carrying capacity, long electrode life, and strong arc stability
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Packaging: 10 electrodes per pack
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Length: 7 inches
Available Sizes & Part Numbers:
| Diameter | Part Number | Common Use Case |
|---|---|---|
| 1/25" | WEM WM437040 | Ultra-precise work, low amperage TIG |
| 1/16" | WEM WM437116 | Thin materials, stainless, and light fabrication |
| 3/32" | WEM WM437332 | General-purpose DC welding on steel, stainless, nickel |
| 1/8" | WEM WM43718 | High-amperage DC TIG on thicker materials |
| 5/32" | WEM WM437532 | Heavy-duty TIG welding, structural and high-volume work |
Ideal For:
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DC TIG welding on carbon steel, stainless steel, nickel, and titanium
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Specialty AC TIG welding on thin-gauge aluminum
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High-frequency start or lift-arc machines
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Fabrication shops, aerospace, pipe welding, and automotive TIG
Weldmark® 2% thoriated tungsten electrodes deliver unmatched arc stability, long life, and performance welders trust—job after job.
Now in stock at GTW Welding Supplies—serving Michigan’s fabrication and industrial welding industries since 1947.
