Products Description
Metal stamping dies are key metal components used in the conductive and elastic actuators within relays, typically manufactured using high-precision stamping dies. These products are based on beryllium copper and are processed into specific shapes through precision stamping, forming, and post-processing techniques for use in the moving spring structure of relay contact systems. The moving spring performs multiple functions during relay operation, including conductivity, elastic reset, and contact pressure transmission; therefore, high requirements are placed on the material's elastic properties, dimensional stability, and machining accuracy.
Material Properties/Advantages
C17200 Material Properties
C17200 beryllium copper for Beryllium Copper Flat Spring is the most commonly used stamping material, containing 1.90%-2.15% beryllium and 0.2%-0.5% nickel. After age hardening treatment, its tensile strength can reach 1105 MPa, hardness 38-44 HRC, and electrical conductivity 18% IACS. This material is suitable for high-strength applications such as micro-motor brushes, spring sheets, and connector contacts.
C17510 Material Properties
C17510 beryllium nickel copper for Beryllium Copper Springs contains 0.2%-0.6% beryllium and 1.4%-2.2% nickel, with a tensile strength of 839 MPa, hardness 96-102 HRB, and electrical conductivity 48% IACS. Due to its higher conductivity, this material is mainly used in resistance welding electrodes, high-strength electrical leads, and applications requiring high conductivity.
Material Selection Advantages
Selecting different grades of beryllium copper according to different application requirements achieves a balance between performance and cost. For military and aerospace applications with high reliability requirements, C17200 material is selected; for applications with higher electrical connection performance requirements, C17510 material is selected for C17200 Beryllium Copper Stamping.
Frequently Asked Questions
How should the surface plating of NGK Beryllium Copper Stamping be selected based on operating conditions?
For automotive high-voltage relays, a thick nickel layer on a hard gold substrate is recommended for the contacts; a thin gold plating can be used for indoor industrial control signal switches; while for outdoor electrical control components in high-humidity coastal areas, a palladium-nickel composite plating should be used to slow down the oxidation and corrosion rate of the plating.
How can the performance of Beryllium Copper Flat Spring be adjusted through heat treatment?
By combining solution treatment and aging hardening treatment at different temperatures and times, an optimal balance between strength and conductivity can be achieved. Our technical team can provide customized recommendations based on specific operating conditions.
How to arrange delivery for Beryllium Copper Springs?
If you have a freight forwarder in China, we can send the goods to you through your freight forwarder.
If you do not have a freight forwarder in China, we can arrange direct delivery from the factory via international express, air freight, or sea freight, whichever you choose.
Application Areas
Relays and Electromagnetic Switches: C17200 Beryllium Copper Stamping are widely used in electromagnetic relays, contactors, and circuit breakers as moving spring assemblies. In high-frequency switching scenarios, the products withstand tens of thousands to millions of elastic deformations without fatigue failure.
Electrical Connectors: NGK Beryllium Copper Stamping
is used as contact terminals, spring contacts, and insertion/removal springs in various electrical connectors. Provides stable contact pressure and reliable electrical connection during connector mating and removal.
EMI Shielding Applications: Beryllium Copper Flat Spring is used as electromagnetic shielding springs in communication equipment, computers, medical equipment, and military electronic equipment. Provides high-frequency and low-frequency electromagnetic shielding protection by forming a continuous conductive path through multiple elastic contact points.
Industrial Automation: Used as elastic contact elements in industrial control systems, sensors, and actuators. Adapts to vibration and temperature variations in industrial environments, maintaining long-term stable performance.
contact us
If you are looking for a highly reliable Beryllium Copper Springs solution, please contact our engineering team. We will provide expert advice, sample support, and stable mass production services tailored to your application needs.
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