Tungsten Applications

Tungsten is used in several methods due to its stable material properties. It has a melting point of 3 422 °C and a tensile strength measured up to 550 MPa. Its performance is enhanced when alloyed, whereas pure tungsten exhibits lower hardness.

Regarding Electrical Contacts

Stanford Advanced Materials has provided manufacturing services for electrical contacts for over 30 years. Customer records indicate that product quality and service reliability meet defined industry specifications. Consequently, the company delivers products within the required time frames.

Whether discrete silver contacts, silver-tungsten or copper-tungsten contacts, cold-formed rivet contacts or soldered assemblies are required, please contact SAM directly.

Each contact application requires individual analysis. Electrical circuit design, mechanical forces and environmental as well as service requirements are assessed according to quantitative criteria. Given that operating conditions differ, materials are selected based on specific application parameters. Please telephone or email SAM for assistance in identifying the appropriate product, component or material for your electrical contact application.

Circuit Breakers and Relays for Aeroplanes

Most aircraft power circuit breakers and relays require a DC circuit protection system for control or alarm functions. Specification standards mandate measured reliability in these systems.

Industrial Controls and Relays

Devices for machine control, process automation, process control and alarm indication are available. These components meet established performance metrics.

Load Switching Devices

High-voltage transformer applications under load produce electric arcs with intensities ranging from moderate to high. Components are designed to withstand such arc conditions under measured test protocols.

Reclosers: Arc Contacts Are Required

Reclosers are electrical contact devices that eliminate contact bounce. This action improves switching performance as confirmed by arc interruption tests.

Acuum Switching Systems, Switches and Circuit Breakers

In these applications, resistance to electric arcs is a necessary parameter. Given the rapid circuit interruption, current decay is carefully managed.