Tungsten Contacts Manufacturer | Heavy-Duty W-Fe & W-Cu Solutions

Tungsten Contacts

High-Impact Solutions | cdsilver.com

Tungsten Contacts: Built for Extreme Arcing

Expertly manufactured W-Fe and W-Cu alloy contacts designed to survive 3410°C melting points and high-frequency electrical stress.

Why Choose Tungsten for Electrical Contacts?

While silver is the king of conductivity, Tungsten (W) is the king of endurance. At CD Silver (cdsilver.com), we manufacture tungsten contacts for applications where silver would simply melt or vaporize. With a hardness unmatched by any other contact metal, tungsten resists mechanical wear and material transfer in high-speed sparking environments.

📂 Specialized Tungsten Alloy Categories

Select a sub-category to view deep technical specifications and industry applications:

Tungsten contact rivets and discs for automotive horns
Figure 1: High-purity tungsten discs and rivets designed for high-frequency switching.

The Engineering Spectrum of Tungsten Alloys

Pure tungsten is brittle and difficult to weld. To optimize performance, we specialize in two primary alloy structures:

1. W-Fe (Tungsten-Iron) Contacts

Commonly used in automotive horns and buzzers. The addition of iron increases the toughness of the contact, preventing the tungsten from cracking under the millions of high-frequency mechanical impacts required in signal devices.

2. W-Cu (Tungsten-Copper) Alloys

These are "pseudo-alloys" that combine the heat resistance of tungsten with the conductivity of copper. They are the standard for high-voltage circuit breakers and EDM electrodes, where electrical arcing is constant and intense.

The 3410°C Advantage: Tungsten’s melting point is the highest of all metals. This makes CD Silver’s tungsten series virtually immune to "welding" (sticking) during high-energy discharges, ensuring the safety of critical ignition and power systems.
Tungsten contact arcing resistance test
Figure 2: Performance test of a W-Cu contact tip under high-voltage arcing conditions.

Precision Manufacturing at CD Silver

Our tungsten contacts are produced through advanced powder metallurgy and precision grinding. Whether you need a W-Fe rivet with a specific head geometry or a W-Cu tip for brazing, we ensure oxygen-free environments during production to prevent surface oxidation, maintaining the lowest possible contact resistance for a tungsten surface.

Expert Heavy-Duty Contact Support

Switching from silver to tungsten? Let our metallurgical engineers help you select the right W-alloy for your specific load and cycle requirements.

© 2026 CD Silver Manufacturing | Heavy-Duty Tungsten Alloy Specialist

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