0.5 - 2.6mm Round Pure Copper Wire for Electricians

Products Specification

　　Oxygen-free copper wire is a high-purity copper product specifically designed to minimize the presence of oxygen and other impurities. This unique manufacturing process results in a wire that delivers superior electrical conductivity, durability, and resistance to corrosion. As industries increasingly demand high-performance materials, oxygen-free copper wire has emerged as a preferred choice for various electrical applications, particularly in audio, aerospace, and telecommunications.

　　1. Composition and Benefits: Oxygen-free copper wire is produced through a specialized refining process that reduces the oxygen content to less than 0.001%. This low oxygen level prevents the formation of copper oxides, which can compromise the wire's conductivity. The primary benefit of using oxygen-free copper is its enhanced electrical performance. It provides better conductivity than standard copper, resulting in lower resistive losses and improved efficiency in electrical systems.

　　2. Enhanced Durability and Resistance: In addition to superior conductivity, oxygen-free copper wire exhibits enhanced durability and resistance to corrosion. This makes it ideal for applications exposed to harsh environments, such as marine and industrial settings. The absence of oxygen helps to prevent the formation of conductive oxides, ensuring long-lasting performance even under challenging conditions. As a result, oxygen-free copper wire is a preferred choice for critical electrical connections where reliability is paramount.

　　3. Applications in Various Industries: Oxygen-free copper wire is widely used in high-end audio and video systems, where its superior conductivity contributes to better sound and picture quality. Audiophiles and professionals often favor this wire for speaker cables and interconnects. In the aerospace and aviation sectors, oxygen-free copper is utilized in wiring harnesses and electrical systems, where reliability and weight reduction are essential. Additionally, it is employed in telecommunications for high-frequency data transmission, ensuring minimal signal loss.

　　4. Environmental Considerations: With increasing awareness of environmental sustainability, the demand for high-purity materials like oxygen-free copper is on the rise. Its recyclable nature and reduced energy consumption during manufacturing make it a more sustainable choice compared to lower-purity alternatives. Industries are now prioritizing oxygen-free copper wire as part of their commitment to reducing their carbon footprint and promoting eco-friendly practices.

　　In conclusion, oxygen-free copper wire is a premium material that offers unmatched conductivity, durability, and corrosion resistance for high-performance electrical applications. Its widespread use in various industries underscores its importance as a reliable and sustainable solution for modern electrical systems.

Oxygen-Free Copper Grades and Their Benefits

Oxygen-free copper is copper material that has undergone an electrolytic refining process to remove all (almost 99.99%) but a trace level of oxygen. By removing oxygen and other impurities, the copper attains superior electrical conductivity and becomes less susceptible to corrosion.

Types of Oxygen-Free Copper

There are three oxygen-free copper grades, detailed below.

• C10100: C10100 is designated as OFE, or oxygen-free electronic, and achieves a minimum electrical conductivity rating of 101% IACS under annealed conditions. C10100 is recommended for applications requiring high ductility and electrical and thermal conductivity.
• C10200: C10200 is 99.95% pure copper. It is an ideal choice when the material needs a strong resistance against stress corrosion cracking. It also has excellent conductivity, welding, and soldering characteristics, the same as C10100.
• C11000: C11000 is also known as electrolytic tough pitch copper or ETP. Though it is 99.9% pure copper, ETP copper contains more oxygen than OFE copper, with OFE having less than 10 ppm of oxygen, whereas ETP contains a minimum of 150 ppm of oxygen. However, ETP is the most commonly used grade copper for its inherent fabrication qualities.

Below is a summary of the oxygen-free copper (OFC) grades, along with their oxygen contents, high purity levels, and applications.

Benefits of Using Oxygen-Free Copper

Using OFC can be beneficial for specific applications. Below, we explore some of these benefits in more detail.

Exceptional Electrical Conductivity

During the manufacturing of OFC, the copper is processed with carbon to remove any oxygen present. High purity, coupled with the absence of oxygen, allows more currents to pass through the same conductor size. Thus, OFC is specifically used for battery cables, induction coils, and space heaters.

High Thermal Capacity

Due to higher thermal conductivity, OFC elemental copper wires do not heat up as quickly as other metals, such as aluminum. As a result, they also have superior thermal strength and thermal conductivity. Industries heavily rely on them for high-temperature applications such as induction heating furnaces.

Excellent Resistance to Hydrogen Embrittlement

Oxygen-free coppers achieve excellent resistance against hydrogen embrittlement occurring under wet electrochemical environments. Because of its malleability, weldability, and lack of reactivity in oxygen-free waters, Finland is even using copper canisters to store nuclear waste inside an encapsulation plant.

Excellent Fabrication Properties

All oxygen-free copper grades are good for machining, with an excellent machinability rating of 20 (100 is more difficult to machine). They have excellent hot-working and cold-working properties. All grades are ideal for soldering, brazing, and gas shielding arc welding. However, spot welding and seam welding are not recommended.

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