Copper is one of the most versatile and widely used materials in industrial applications. It offers a unique combination of conductivity, ductility, and corrosion resistance, making it essential in electrical, thermal, and mechanical systems. Among its many grades, Copper C10300 stands out as a premium oxygen-free alloy designed for superior performance in critical applications.

As a leading Copper C10300 Tubes supplier, we provide high-quality tubes engineered to meet demanding requirements across industries like electronics, power generation, aerospace, and medical technology. Let’s explore what makes C10300 copper tubes so exceptional and why they are trusted worldwide for precision applications.


What is Copper C10300?

Copper C10300, also known as Oxygen-Free Copper (OFC), is a high-purity copper alloy containing a minimum of 99.95% copper. It’s produced using a refining process that removes oxygen and other trace elements, resulting in an ultra-clean and highly conductive material.

This grade of copper is preferred in environments where even slight impurities can compromise performance — such as in vacuum systems, electrical conductors, and high-frequency electronic devices. Its combination of electrical and mechanical properties makes it one of the finest coppers available.


Chemical Composition of Copper C10300

Element Percentage (%)
Copper (Cu) 99.95 min
Phosphorus (P) 0.0003 max
Oxygen (O) 0.001 max
Silver (Ag) 0.002–0.007

This carefully controlled composition ensures superior purity and eliminates the risk of hydrogen embrittlement — a common issue in oxygen-bearing coppers.


Key Characteristics of Copper C10300 Tubes

Copper C10300 Tubes supplier deliver a blend of exceptional properties that make them suitable for high-performance applications.

1. Outstanding Electrical Conductivity

C10300 boasts an electrical conductivity of up to 101% IACS (International Annealed Copper Standard), making it one of the most conductive metals available. This allows for efficient current flow with minimal energy loss.

2. Superior Thermal Conductivity

With excellent heat transfer capabilities, C10300 copper tubes are perfect for heat exchangers, condensers, and cooling systems where quick thermal response is crucial.

3. Corrosion and Oxidation Resistance

These tubes perform exceptionally well in both fresh and marine environments, resisting corrosion, oxidation, and scaling — even under continuous exposure to heat.

4. High Ductility and Formability

Copper C10300 Tubes can be bent, shaped, and drawn into complex forms without cracking, making them easy to install and fabricate.

5. Non-Magnetic and Clean Surface Finish

The non-magnetic nature and smooth finish of C10300 make it suitable for medical and vacuum systems where magnetic interference and contamination are unacceptable.

6. No Hydrogen Embrittlement

The oxygen-free structure prevents hydrogen embrittlement, ensuring the tubes maintain mechanical strength in high-temperature or vacuum environments.


Manufacturing Process of C10300 Copper Tubes

Producing Copper C10300 Tubes requires precision and purity at every stage. The process includes:

  1. Refining and Melting: Pure copper cathodes are melted under a reducing atmosphere to remove all oxygen.

  2. Casting: The molten copper is cast into billets or rods.

  3. Extrusion: Billets are extruded through dies to form seamless tubes.

  4. Cold Drawing: The extruded tubes undergo cold drawing to achieve exact dimensions and mechanical strength.

  5. Annealing: Tubes are annealed in a vacuum to enhance ductility.

  6. Finishing and Inspection: The tubes are polished, cleaned, and thoroughly inspected to meet quality standards.

Each tube undergoes strict metallurgical testing to ensure consistency, reliability, and purity.


Applications of Copper C10300 Tubes

Because of its superior performance characteristics, C10300 Copper Tubes are used in various critical applications across industries:

1. Electrical and Electronic Systems

  • Power generation and distribution equipment

  • Transformer windings and bus bars

  • Semiconductor and vacuum tube components

  • Connectors, switches, and terminal parts

2. Thermal and Heat Transfer Equipment

The high thermal conductivity of C10300 makes it ideal for:

  • Heat exchangers

  • Condensers

  • Air conditioning and refrigeration systems

  • Radiators and cooling plates

3. Aerospace and Defense Industry

C10300 tubes are used in avionics, radar systems, and aerospace electrical assemblies where precision and reliability are critical.

4. Medical and Cryogenic Systems

Oxygen-free copper is widely used in medical gas pipelines, MRI systems, and cryogenic applications, thanks to its purity and non-reactive nature.

5. Vacuum and High-Temperature Environments

Because it resists outgassing, C10300 performs reliably in ultra-high vacuum systems, furnaces, and instrumentation lines.


Advantages of Using Copper C10300 Tubes

Choosing C10300 Copper Tubes offers a wide range of benefits over conventional copper alloys:

  • Superior Purity: 99.95% minimum copper ensures maximum conductivity.

  • Enhanced Reliability: No risk of hydrogen embrittlement or cracking.

  • Consistent Performance: Maintains integrity under thermal cycling and high vacuum.

  • Easy Fabrication: Can be machined, welded, and brazed easily.

  • Excellent Surface Finish: Suitable for high-precision engineering.

  • Extended Service Life: Resistant to oxidation and corrosion.

These benefits make C10300 a preferred material in industries that demand performance and precision.


Available Types and Sizes

Suppliers provide Copper C10300 Tubes in different shapes, tempers, and sizes to suit diverse applications.

Types:

  • Seamless Tubes

  • Welded Tubes

  • Drawn Tubes

  • Capillary Tubes

Shapes:

  • Round

  • Square

  • Rectangular

Available Tempers:

  • Hard

  • Half Hard

  • Soft / Annealed

Typical Dimensions:

  • Outer Diameter: 3 mm to 200 mm

  • Wall Thickness: 0.5 mm to 20 mm

  • Length: Up to 6 meters or as required

All tubes can be customized as per project specifications.


Testing and Quality Control

Quality assurance is a key factor for any C10300 Copper Tubes manufacturer. To ensure reliability and consistency, the tubes are tested using:

  • Eddy Current Test – Detects surface cracks or flaws.

  • Hydrostatic Test – Ensures leak-proof construction.

  • Mechanical Testing – Checks tensile and yield strength.

  • Dimensional Inspection – Verifies accurate tolerances.

  • Spectro Analysis – Confirms chemical composition.

Each tube is accompanied by a Material Test Certificate (MTC) in compliance with EN 10204 3.1 standards.


Standards and Specifications

Copper C10300 Tubes are manufactured in accordance with the following international standards:

  • ASTM B111 / B111M – Standard for Seamless Copper and Copper Alloy Tubes

  • BS EN 12449 – Copper and Copper Alloy Seamless Round Tubes

  • JIS H3300 – Japanese Standard for Copper Tubes

These specifications guarantee consistent quality, mechanical strength, and corrosion resistance.


Why Choose a Trusted Copper C10300 Tubes Supplier?

When selecting a Copper C10300 Tubes supplier, reliability and quality assurance are key. A reputed supplier ensures:

  • Premium Raw Material: 100% pure copper sourced from certified mills.

  • Precision Engineering: Dimensional accuracy with excellent finish.

  • Global Standard Compliance: ASTM, BS, and EN-certified products.

  • Custom Fabrication: Tailored lengths and sizes to meet specific needs.

  • Competitive Pricing: Affordable solutions without compromising on quality.

  • Timely Delivery: Efficient logistics for domestic and international clients.

Partnering with a reliable supplier guarantees consistent quality, technical support, and long-term performance.


Handling and Storage Recommendations

To maintain the superior quality of C10300 Copper Tubes, proper handling and storage are essential:

  • Store in dry, covered spaces to prevent oxidation.

  • Avoid direct contact with chemicals, acids, or moisture.

  • Use protective wrapping during transport.

  • Handle carefully to prevent dents or scratches.

Following these precautions ensures the tubes maintain their integrity until installation.


Sustainability and Recycling

Copper is one of the most sustainable materials available. C10300 copper can be fully recycled without losing its performance characteristics. The recycling process consumes less energy compared to primary production, reducing environmental impact and supporting circular economy initiatives.

By choosing C10300 Copper Tubes, industries contribute to a more sustainable and eco-friendly future.


Conclusion

Copper C10300 Tubes are the perfect choice for applications demanding high conductivity, purity, and reliability. Their oxygen-free structure, superior thermal and electrical properties, and resistance to hydrogen embrittlement make them indispensable across industries like electronics, aerospace, and power systems.

When you partner with a trusted Copper C10300 Tubes supplier, you’re assured of world-class quality, timely delivery, and products that meet global standards. Whether you need tubes for precision electronics, heat exchangers, or vacuum systems, C10300 copper delivers unmatched performance every time.

Investing in the right copper grade can significantly enhance your system’s efficiency, reliability, and longevity — and Copper C10300 is the benchmark of purity and performance in modern engineering.

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Last Update: October 6, 2025