Characteristics and Applications Analysis of Oxygen Free Copper Bar

Oxygen free copper bar is a type of high-purity, low-oxygen-content copper material, and its characteristics mainly include the following aspects:

High Purity and Low Oxygen Content

High Purity

The purity of oxygen free copper bar is usually very high; the purity of first-class oxygen free copper bar reaches 99.97% or higher, and the purity of second-class oxygen free copper bar also reaches99.95% or higher.

Low Oxygen Content

The oxygen content in oxygen free copper bar is extremely low; the oxygen content of first-class oxygen free copper bar is not greater than0.003%, and the oxygen content of second-class oxygen free copper bar is not greater than0.005%. This low oxygen content gives oxygen free copper bar superior physical and chemical properties.

Excellent Conductivity and Thermal Conductivity

High Conductivity

Oxygen free copper bar has extremely high electrical conductivity, making it widely used in electronics, electrical engineering, and other fields. High conductivity helps reduce energy loss during power transmission, improving energy efficiency.

High Thermal Conductivity

The thermal conductivity of oxygen free copper bar is also excellent, allowing it to quickly transfer heat. This characteristic makes oxygen free copper bar perform remarkably in situations requiring efficient heat dissipation, such as in the electric control systems of new energy vehicles and electronic devices.

Good Machinability and Weldability

Easy to Machine

Oxygen free copper bar has good machinability and can be processed into the required shapes and sizes by various methods.

Easy to Weld

The weldability of oxygen free copper bar is also excellent, allowing it to be welded with various materials to form strong joints.

Excellent Corrosion and Cold Resistance

Corrosion Resistance

Oxygen free copper bar is corrosion-resistant in the atmosphere, pure fresh water, and slow-moving seawater, and also shows good resistance to non-oxidizing acids. This makes oxygen free copper bar perform well in environments requiring corrosion resistance.

Cold Resistance

Oxygen free copper bar maintains stable performance in low-temperature environments, without becoming brittle or failing due to lower temperatures.

No Hydrogen Embrittlement and Low Magnetism

No Hydrogen Embrittlement

The production process of oxygen free copper bar avoids the introduction of hydrogen, thus eliminating the phenomenon of hydrogen embrittlement, ensuring the strength and toughness of the material.

Low Magnetism

Oxygen free copper bar is a magnetic-resistant material with a low mass magnetic susceptibility at room temperature, making it perform well in applications that need to avoid magnetic interference.

High Heat Resistance (Certain Oxygen Free Copper Bar)

For certain specific types of oxygen free copper bar (such as high heat-resistant oxygen free copper bar), the heat resistance is superior. These materials can maintain stable performance under continuous high temperature, without deforming or failing due to temperature rise. This makes high heat-resistant oxygen free copper bar widely used in applications requiring high temperature resistance, such as power modules and circuit boards of new energy vehicles.

In summary, oxygen free copper bar, with its high purity, low oxygen content, excellent electrical and thermal conductivity, good machinability and weldability, excellent corrosion and cold resistance, no hydrogen embrittlement, low magnetism, and high heat resistance (certain oxygen free copper bar), is widely used in electronics, electrical engineering, new energy, and other fields.