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.
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.
why choose us
why choose our products
We are a leading manufacturer and exporter specializing in a comprehensive range of high-quality copper products, including copper tubes, copper plates/sheets, copper bars, copper rods, copper wires, and copper strips. Our advanced manufacturing facilities are equipped with state-of-the-art continuous casting lines, extrusion presses, cold rolling mills, and drawing machines to ensure precision and consistency. Rigorous quality control is integral to our process, conducted through spectrometers for material verification, tensile testers, eddy current testers, and hydrostatic pressure testers, guaranteeing that all our products meet international standards for performance and durability.
E-mail: sales@gneesteel.com
