W70Cu30 Parts

W70Cu30 (70% tungsten, 30% copper) is a composite material that offers a balance between strength, wear resistance, and electrical/thermal conductivity. With a higher tungsten content than W60Cu40, it provides enhanced hardness and durability while maintaining good conductivity.

Classification:

Product Series

E-mail:

monfils.chen@mtwkj.com

Contact

Message

introduce

Key Properties
1. High Hardness & Wear Resistance – The increased tungsten content significantly improves mechanical strength and durability, making it suitable for high-stress applications.
2. Moderate Electrical & Thermal Conductivity – While the conductivity is lower than alloys with more copper, W70Cu30 still provides good thermal and electrical performance for demanding environments.
3. Excellent Arc Resistance – The high tungsten content improves resistance to electrical arcing, reducing material erosion in electrical applications.
4. Low Thermal Expansion – Compared to pure copper or lower tungsten-content alloys, W70Cu30 exhibits lower thermal expansion, ensuring dimensional stability under varying temperatures.
5. Good Machinability – Although harder than W60Cu40, it can still be machined effectively using specialized techniques.
Applications
- High-Voltage Electrical Contacts – Used in circuit breakers, vacuum interrupters, and high-power switches for improved durability and arc resistance.
- Electrical Discharge Machining (EDM) Electrodes – Provides enhanced wear resistance for precision machining applications.
- Heat Sinks & Thermal Management Components – Applied in aerospace and power electronics to handle high thermal loads.
- Resistance Welding Electrodes – Offers a balance between conductivity and mechanical strength for spot welding applications.