Clean Start, Stable Profile:
SVS Standards for TIG Electrodes
TIG electrodes are manufactured with high dimensional accuracy. A burr-free surface and precisely ground tip ensure consistent and stable arc control. The cylindrical base body fits securely into the collet and retains its shape even under high thermal loads. Depending on the application, electrodes are designed with optimized ignition performance, thermal stability, or increased longevity.
Available as standard versions or custom designs based on drawings or samples. Geometry, interfaces, and materials are precisely matched to your specific requirements.
Catalog
Standard Configurations
Exemplary Materials
Pure tungsten (WP), tungsten-lanthanum oxide (WL), tungsten-cerium oxide (WC), and tungsten-thorium oxide (WT)
| Type | Color Coding | Oxide Content | Diameter (mm) | Action |
|---|---|---|---|---|
WLa 10 | black | 0,8%-1,2% lanthanum oxide | 1 | |
WLa 10 | black | 0,8%-1,2% lanthanum oxide | 1.6 | |
WLa 10 | black | 0,8%-1,2% lanthanum oxide | 2.4 | |
WLa 10 | black | 0,8%-1,2% lanthanum oxide | 3.2 | |
WLa 15 | gold | 1,3%-1,7% lanthanum oxide | 1 | |
WLa 15 | gold | 1,3%-1,7% lanthanum oxide | 1.6 | |
WLa 15 | gold | 1,3%-1,7% lanthanum oxide | 2.4 | |
WLa 15 | gold | 1,3%-1,7% lanthanum oxide | 3.2 | |
WLa 20 | blue | 1,7%-2,2% lanthanum oxide | 1 | |
WLa 20 | blue | 1,7%-2,2% lanthanum oxide | 1.6 | |
WLa 20 | blue | 1,7%-2,2% lanthanum oxide | 2.4 | |
WLa 20 | blue | 1,7%-2,2% lanthanum oxide | 3.2 | |
WP | green | pure tungsten | 1 | |
WP | green | pure tungsten | 1.6 | |
WP | green | pure tungsten | 2.4 | |
WP | green | pure tungsten | 3.2 | |
WCe 20 | gray | 1,8%-2,2% cerium oxide | 1 | |
WCe 20 | gray | 1,8%-2,2% cerium oxide | 1.6 | |
WCe 20 | gray | 1,8%-2,2% cerium oxide | 2.4 | |
WCe 20 | gray | 1,8%-2,2% cerium oxide | 3.2 | |
WZr 03 | brown | 0,15%-0,5% zirconium oxide | 1 | |
WZr 03 | brown | 0,15%-0,5% zirconium oxide | 1.6 | |
WZr 03 | brown | 0,15%-0,5% zirconium oxide | 2.4 | |
WZr 03 | brown | 0,15%-0,5% zirconium oxide | 3.2 | |
WZr 08 | white | 0,7%-0,9% zirconium oxide | 1 | |
WZr 08 | white | 0,7%-0,9% zirconium oxide | 1.6 | |
WZr 08 | white | 0,7%-0,9% zirconium oxide | 2.4 | |
WZr 08 | white | 0,7%-0,9% zirconium oxide | 3.2 |
Options
Material Selection
Provides stable arcs in AC welding and uniform heat distribution with soft-melting materials such as aluminum and magnesium. Its relatively low hardness limits service life under high currents and dynamic loads.
Suitable for both AC and DC applications. It offers reliable ignition, smooth arc characteristics and longer service life than unalloyed types. Commonly used for welding stainless steel and mild steel as well as in automated processes with stable parameters.
Combines excellent arc starting characteristics with stable arc control and low emissions. Service life remains consistent even under fluctuating process conditions. Particularly suited for precise DC applications with steady current levels.
Delivers very high service life, stable arc control and precise heat input in DC welding. Ideal for thin-walled materials and automated DC processes. Due to its radioactive content, it may only be used under strict occupational safety regulations.
Request a Custom Design
Kai Kleinevoß
Head of Sales Wirbalit®
kleinevoss@svs-schweisstechnik.de
+49 208 99 328 15
We ensure the quality of your welding processes.
We process highly conductive copper components with a defined and verified purity level. All current-carrying surfaces are precisely machined and optimized for minimal contact resistance.
All components are manufactured in Germany and precisely matched to your application. Standard designs are available from stock, ensuring short delivery times and maximum flexibility.
Tight tolerances, stable production equipment, and consistent clamping conditions ensure reliable dimensional accuracy and repeatable results across all production runs.
Our products are subject to strict quality inspections. For special requirements, individual tests are carried out according to defined specifications.
Flexibility is our strength. Our products are available in numerous variants and can be manufactured with high precision to fit your system requirements.
For decades, we have contributed our expertise to SVS products and, as an active member of the German Welding Society (DVS), have helped shape technical standards.
SVS Capabilities
For over 60 years, we have been a reliable partner in welding technology for manufacturers worldwide.
Fundamentals
Function of Electrodes in TIG Welding
In TIG welding, an arc is created between a non-consumable electrode and the workpiece. The electrode directs current precisely to the joint and stabilizes arc position within the shielding gas stream. Electrical energy is concentrated at the electrode tip, generating the localized heat needed to melt the base material. This creates a weld pool which solidifies into the finished weld seam.
Key Parameters for TIG Electrodes
The shape of the electrode tip influences arc form, arc stability and weld bead characteristics. Grind angle and its consistency across batches are especially critical for maintaining a stable arc. Variations directly affect welding parameters such as penetration depth and bead width, and therefore overall weld quality.
Precise diameter and length are essential for a secure fit in the collet. Accurate manufacturing ensures consistent arc positioning and stable welding performance.
In addition to being burr-free, the electrode surface must have uniform roughness. Irregularities at the contact area increase resistance, hinder arc initiation and negatively impact thermal coupling and arc stability.
The decisive factor is how evenly the components are distributed within the material. Only a homogeneous composition ensures controlled burn-off behavior and stable arc control over the entire service life.
Homogeneous distribution of alloying elements ensures controlled burn-off behavior and stable arc characteristics throughout the electrode’s service life.
