Oxygen-free copper is a highly pure copper material, widely used due to its superior properties. Here are some of its main advantages:

1. High Electrical Conductivity: Oxygen-free copper has very high electrical conductivity. With extremely low oxygen content, there are no oxide impurities to affect current conduction, making it excellent for electrical and electronic applications.

2. Excellent Thermal Conductivity: It also has high thermal conductivity, suitable for applications requiring efficient heat transfer, such as heat sinks and heat exchangers.

3. Outstanding Machinability: Oxygen-free copper is highly machinable and easy to process through drawing, stamping, forging, and other techniques.

4. Superior Oxidation Resistance: Due to its low oxygen content, oxygen-free copper exhibits excellent oxidation resistance at high temperatures, and it does not easily form an oxide layer, making it suitable for high-temperature environments.

5. High Purity: With a purity of over 99.99%, oxygen-free copper is popular in applications requiring high-purity materials, such as manufacturing precision electronic components.

6. Good Weldability: It is suitable for various welding techniques, including brazing and laser welding, resulting in high-quality joints.

These properties make oxygen-free copper an ideal material for demanding electrical and electronic equipment, vacuum devices, and precision machining fields.