Round Silver Bimetal Rivet Industry Overview: An Efficient and Energy-Saving Electrical Contact Solution

Round Silver Bimetal Rivets are electrical contact components made from two dissimilar metals. They typically combine a highly conductive contact layer with a cost-effective or mechanically strong base metal. The contact surface is typically composed of silver or silver-based alloys such as AgCdO, AgSnO₂, or AgNi, which ensure excellent electrical performance and arc corrosion resistance. The base metal, typically copper or brass, provides structural support and reduces material costs. This layered structure enables bimetallic contact rivets to maintain high electrical efficiency while enhancing mechanical stability and reducing the overall use of expensive precious metals.

From a production perspective, the main manufacturing processes for Bi-metal Silver Contacts include internal oxidation, pre-oxidation, powder metallurgy, and chemical coating.

Bimetal Silver Contacts offer numerous advantages, including efficient use of precious metals and cost reduction through double composite riveting. They also improve contact rivet performance and can be used in continuous automated production. In terms of performance, it offers excellent corrosion and welding resistance and exhibits excellent resistance to material transfer in DC switching circuits.

Bimetallic Silver Contacts are widely used in automotive and household appliances, relays, contactors, thermostats, various switches, aviation electronics, timers, and other electronic applications. For example, silver-iron/copper contact rivets offer excellent electrical and thermal conductivity, are non-toxic, wear-resistant, have a strong breaking capacity, and a low temperature rise. Their service life is twice that of silver contacts of the same specification. They are primarily used in appliances with frequent switching currents under 40A, such as AC contactors and household appliance contacts. Silver-copper/copper contact rivets offer high hardness and excellent wear resistance, and are primarily used in appliances where sliding friction occurs during contact opening and closing, such as transportation starter switches, pushbutton switches, and household appliances.

According to QYResearch, the global China Bimetal Contact Rivet market size was approximately US$823 million in 2024 and is expected to reach US$1.065 billion in 2031, with a compound annual growth rate (CAGR) of 4.1% from 2025 to 2031. The Chinese market has undergone rapid changes in the past few years. Although detailed data such as market share is not fully disclosed, it is clear that China holds a significant position in the global bimetallic contact rivet market and has enormous market growth potential.

With the development of the industry, Bi-metal Silver Contacts will place greater emphasis on high performance and multifunctionality. On the one hand, the application of new materials and advanced manufacturing technologies will further enhance their performance. For example, the use of new alloys and improved welding techniques will enhance strength and corrosion resistance, extend service life, and improve reliability. On the other hand, with the development of smart manufacturing and Industry 4.0, the production and processing of bimetallic contact rivets will become more intelligent and automated. The introduction of robots and automated production lines will improve production efficiency and product quality, and reduce human error. At the same time, with the popularization of green manufacturing and sustainable development concepts, its production process will also become more environmentally friendly and sustainable.

When you seek to control costs without compromising product performance and reliability, strong local supply chain support is crucial. Round Silver Bimetal Rivet is an outstanding product embodying this philosophy. We not only master the core technology of bimetallic composites, ensuring they maintain low temperatures and long life even under high-frequency opening and closing, but also boast a technical team with years of industry experience, offering comprehensive services from product selection advice to application support. Choosing us means you've chosen a strategic supplier based in China, dedicated to quality, and committed to collaborative growth.