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High Performance Oxygen-Free Copper from China - Trusted Suppliers and Factory Quality

Oxygen-free copper, known as oxygen-free copper in English, is a high-purity copper that is free from oxygen and any deoxidizer residues. While manufacturing processes may introduce trace amounts of oxygen and impurities, strict standards dictate that the oxygen content must not exceed 0.003%, total impurities must be below 0.05%, and the copper purity must be over 99.95%. In China, suppliers classify oxygen-free copper into two categories: No. 1 (C10100) and No. 2 (C10200). No. 1 oxygen-free copper boasts an impressive purity of 99.97%, with an oxygen content of no more than 0.003% and total impurities not exceeding 0.03%. Meanwhile, No. 2 oxygen-free copper maintains a purity of 99.95%, with oxygen and impurity levels capped at 0.005% and 0.05%, respectively. As a reliable factory for high-quality oxygen-free copper, we are proud to meet the rigorous standards that our customers expect

    Uses of oxygen-free copper

    Oxygen-free copper has been widely used in many fields due to its excellent performance.

    • Electronics Industry

      Oxygen-free copper is an important material in the electronics industry. It is often made into oxygen-free copper plates, oxygen-free copper strips, oxygen-free copper wires and other copper materials, which are used to manufacture wires and cables, batteries, motors, tachronic tubes, microwave tubes, transistor components, etc. Its high electrical conductivity ensures the high efficiency and reliability of electronic devices.

    • Heat Dissipation and Heat Exchange

      Oxygen-free copper has excellent thermal conductivity, and thus is widely used in fields such as radiators and heat exchangers that require efficient heat conduction.

    • Pipe Materials

      In pipe materials for water supply, gas supply, heating, etc., oxygen-free copper is highly favored due to its high strength and corrosion resistance.

    • High-temperature and High-pressure Equipment

      In the chemical industry, the stability and high strength of oxygen-free copper make it an ideal material for manufacturing high-temperature and high-pressure equipment.

    • Instrument and Meter Components

      Oxygen-free copper is also used in the manufacture of electric vacuum instrument and meter components, as well as coaxial tubes for liquefied petroleum gas service pipes, medical gas oxygen tubes, etc.

    Advantages of oxygen-free copper

    The reason why oxygen-free copper can be widely used in multiple fields mainly lies in the following advantages:

    • High electrical conductivity

      Oxygen-free copper has an extremely high electrical conductivity, reaching 100% IACS (International Annealed Copper Standard), which gives it a significant advantage in fields such as wires and cables that require efficient transmission of electrical energy.

    • Corrosion Resistance

      Oxygen-free copper has extremely strong corrosion resistance. In salt spray tests, its corrosion resistance is three times stronger than that of ordinary copper, which gives it a longer service life in fields such as submarine cables that need to withstand harsh environments for a long time.

    • High Strength

      Oxygen-free copper features high strength and excellent processing performance, capable of withstanding significant mechanical stress, making it suitable for manufacturing various structural and connecting components.

    • Excellent thermal conductivity

      Oxygen-free copper has outstanding thermal conductivity. When oxygen-free copper is used in heat sinks, the thermal conductivity efficiency can be increased by 25%

    Properties and applications of copper alloys

    Frequently Asked Questions

    What is the electrical conductivity of oxygen-free copper?

    Oxygen-free copper possesses an exceptionally high electrical conductivity, reaching 100% IACS (International Annealed Copper Standard), making it ideal for high-efficiency electrical transmission applications.

    How does oxygen-free copper perform in corrosive environments?

    It exhibits outstanding corrosion resistance. In salt spray tests, its corrosion resistance is three times stronger than that of ordinary copper, which makes it highly suitable for long-term use in harsh environments like submarine cabling.

    What thermal benefits does oxygen-free copper offer?

    Due to its excellent thermal conductivity, using oxygen-free copper in heat sinks can boost thermal dissipation efficiency by up to 25% compared to standard materials.

    In which electronic components is oxygen-free copper commonly used?

    It is widely processed into plates, strips, and wires used in manufacturing batteries, motors, tachronic tubes, microwave tubes, transistor components, and high-performance wires and cables.

    Is oxygen-free copper strong enough for structural applications?

    Yes, oxygen-free copper provides high strength and excellent processing performance, allowing it to withstand significant mechanical stress in structural, connecting, and high-pressure chemical equipment.

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