Tungsten electrodes WC20 grey: The universal specialist with cerium oxide
The grey tungsten electrode (WC20) is the "multitool" among the TIG electrodes. Doped with approx. 2 % cerium oxide (CeO2), it combines excellent excellent ignition properties with a high thermal load capacity Load capacity. It is the ideal choice for welders who want to cover a wide Range of applications and want to consistently avoid radioactive additives without radioactive additives.
At Schweiss-Shop.de you will find high-quality WC20 MMA electrodes for stable arcs for steel, stainless steel, copper and aluminium.
WC 20 - grey - 307WTR0001
WC 20 - grey - 307WTR0002
WC 20 - grey - 307WTR0003
WC 20 - grey - 307WTR0004
WC 20 - grey - 307WTR0005
WC 20 - grey - 307WTR0006
WC 20 - grey - 307WTR0007
WC 20 - grey - 307WTR0008
WC 20 - grey - 307WTR0009
Why the grey WC20 is convincing in everyday workshop use
The grey identification colour stands for an MMA that is particularly strong in the lower and medium amperage range in particular. In comparison Compared to pure tungsten electrodes, the cerium oxide doping offers offers decisive practical advantages:
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Excellent ignition: The WC20 ignites extremely easily - even repeated starts (re-strike) and when the burner is already heated Torch.
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Arc stability: The arc remains focussed and steady and steady, which is particularly important for thin sheets and in pipework is crucial for a clean seam root.
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Environmentally friendly & safe: In contrast to the thoriated (red) electrode, the MMA, the WC20 is completely radiation-free. This means: no radioactive radioactive grinding dust in the workplace and no special requirements disposal.
Areas of application: Where does the grey MMA shine?
The WC20 is a real all-rounder and covers almost all metallic materials Materials:
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Direct current (DC): Perfect for unalloyed steel, stainless steel (V2A/V4A), copper, titanium and nickel alloys.
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Alternating current (AC): On modern TIG inverters, the grey electrode offers Inverters, the grey MMA also offers stable performance and controlled calotte formation.
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Automation: Due to the high reproducibility of the ignition Ignition, it is the preferred choice for orbital welding and in automated robot cells.
Technical details & standards
To ensure that your process reliability is guaranteed, our MMAs meet the highest industry standards:
| Feature | Specification |
|---|---|
| Composition | Tungsten + approx. 2 % cerium oxide (CeO2) |
| Standard | DIN EN ISO 6848 (highest precision) |
| Characteristic colour | Grey |
| Diameter | 1.0 / 1.6 / 2.0 / 2.4 / 3.2 / 4.0 / 4.8 mm |
| Length | 175 mm (standard) |
Professional tip for a longer service life
To exploit the full potential of the grey MMA, the grinding should always be Always grind axially (in the longitudinal direction). Cross grinding leads to an unstable, "dancing" arc and increases wear on the tip Wear on the tip. For very low amperages, we recommend a more acute angle is recommended in order to focus the arc even more strongly and to avoid burn-in faults.
FAQ - Frequently asked questions about the grey tungsten electrode (WC20)
Can I also weld aluminium with the grey MMA? Yes, that is a major advantage of the WC20. Whereas in the past it was primarily used for DC (steel), modern AC/DC systems show excellent results with aluminium Results with aluminium, as the MMA retains a very stable tip tip.
Is the WC20 better than the golden WL15? "Better" depends on the application depends on the application. The gold MMA (lanthanum) is more universal at extremely high currents, while the grey Currents, while the grey WC20 is often better at low currents and in terms of ignition Ignition behaviour often has the edge.
Why should I change from red (WT20) to grey? The red MMA contains radioactive thorium oxide. The grey WC20 offers comparable ignitability, but is completely harmless to health harmless. It is the safest step for modern occupational safety.
