High-Performance C17300 Beryllium Copper Alloy - China Suppliers & Factory for Precision Engineering
Basic features of the C17300
- Copper (Cu): the main matrix, accounting for about 97.5% to 98.5%
- Beryllium (Be): 1.8%-2.0%, providing high strength and hardness
- Cobalt (Co): 0.2%-0.6%, enhanced heat resistance and wear resistance
- Tensile strength: 800-1200 MPa (after heat treatment)
- Hardness: HRC 38-42 (after age hardening)
- Elongation: 5%-10%, both strength and toughness
- Conductivity: 45%-50% IACS (International Annealed Copper Standard)
- Thermal conductivity: 105-120 W/m·K
- Thermal expansion coefficient: 17.5×10⁻⁶/℃ (similar to silicon chip, suitable for electronic packaging)
- Heat resistance: It can still maintain the tensile strength of more than 600 MPa at 300℃, which is suitable for high temperature environment.
The outstanding advantages of C17300
It is difficult for ordinary copper alloys to meet high strength and high conductivity at the same time, and the C17300 balances these two points perfectly through the addition of beryllium and cobalt, which is especially suitable for high-load and high-current application scenarios.
The precipitation strengthening of beryllium makes the material have very high wear resistance, which is suitable for the manufacture of springs, bearings and other parts that need to withstand friction for a long time.
Easy to cut, press and form, excellent surface treatment performance, suitable for the manufacture of complex shapes of precision parts.
Stable performance in humid, high temperature or chemical corrosion environment, long service life.
The main application areas of C17300
It is used to manufacture high-precision components such as connectors, relays and switches to ensure the stability and reliability of signal transmission.
Manufacturing sensors, high voltage relays, charging pile contacts, etc., to meet the stringent requirements of high temperature and high current.
Used to manufacture fasteners, springs, bearings and other key components, with lightweight, high strength characteristics.
Manufacturing mold, electrode, welding, etc., wear resistance, high temperature resistance, extend the service life of equipment.
Used for fuel cell bipolar plate, wind power conductive slip ring, etc., to meet the needs of high conductivity and corrosion resistance.
Environmental protection and safety of C17300
- The content of beryllium is low (1.8%-2.0%), and strict protective measures are taken during processing to ensure safety.
- The material can be recycled 100%, in line with RoHS, REACH and other environmental standards.
Frequently Asked Questions (FAQ)
What is the chemical composition of C17300 beryllium copper?
C17300 consists mainly of Copper (Cu) at approximately 97.5% to 98.5%, Beryllium (Be) at 1.8% to 2.0% for high strength and hardness, and Cobalt (Co) at 0.2% to 0.6% to enhance heat and wear resistance.
What are the mechanical properties of C17300?
After heat treatment, C17300 displays a tensile strength of 800-1200 MPa, a hardness of HRC 38-42 after age hardening, and an elongation of 5%-10%, offering an exceptional balance of strength and toughness.
What makes C17300 suitable for high-temperature electronic packaging?
C17300 has a thermal expansion coefficient of 17.5×10⁻⁶/℃, which is similar to that of silicon chips. Additionally, it retains a tensile strength of over 600 MPa even at 300℃, making it highly reliable in high-temperature environments.
In which industries is C17300 beryllium copper most commonly used?
It is widely used in the electronic and electrical industry (connectors, relays, switches), the automotive sector (sensors, charging pile contacts), aerospace (fasteners, springs, bearings), industrial equipment (molds, electrodes), and the new energy field (fuel cells, wind power slip rings).
Is C17300 beryllium copper environmentally friendly and safe to process?
Yes. The beryllium content is kept low (1.8%-2.0%). With strict protective measures during processing, safety is ensured. The material is also 100% recyclable and complies with environmental standards like RoHS and REACH.