Custom Oxygen-Free Copper Tube Supplier & Company

High-Conductivity Solutions for Vacuum Electronics, Semiconductor & New Energy Systems

The Science of Purity: Why Oxygen-Free Copper Matters

Decoding the standards of C10100 and C10200 for high-end industrial utility.

In the realm of advanced manufacturing, the term "Oxygen-Free Copper" (OFC) refers to a group of high-conductivity wrought copper alloys that have been electrolytically refined to reduce the level of oxygen to .001% or below. As a leading Oxygen-free copper tube supplier, we recognize that the difference between standard ETP (Electrolytic Tough Pitch) copper and OFC is not just chemical, but functional.

🔹 C10100: Oxygen-Free Electronic (OFE)

This is the purest grade, with 99.99% copper content. It is essential for vacuum electronics where "outgassing" must be minimized. Our C10100 tubes are processed in an oxygen-free environment to ensure immunity to hydrogen embrittlement.

🔹 C10200: Oxygen-Free (OF)

With 99.95% purity, C10200 offers excellent thermal and electrical conductivity. It is the gold standard for high-current busbars, waveguides, and cryogenic applications where structural integrity at low temperatures is paramount.

For global procurement officers, the "Information Gain" lies in understanding the Hydrogen Embrittlement Test. While standard copper fails when exposed to reducing atmospheres at high temperatures, our OFC tubes maintain 100% ductility, ensuring the longevity of critical components in fusion reactors and aerospace propulsion systems.

China Factory 4.0: Supply Chain Resilience

How Sichuan Kepai New Materials is Redefining Global Copper Manufacturing.

⚙️ R&D and Manufacturing Synergy

Established in May 2017, Sichuan Kepai New Materials Co., Ltd. represents the pinnacle of China's "Smart Manufacturing." Operating from a 29,000 sqm facility, we integrate AI-driven quality control with traditional metallurgical expertise. Our focus on high-conductivity, high-strength free-cutting tellurium copper and oxygen-free copper tubes has positioned us as a critical link in the global high-tech supply chain.

Our Industry 4.0 approach ensures that every batch of copper alloy is traceable, from the raw cathode to the finished precision-machined tube. This level of transparency is why over 1,000 global customers trust Kepai for their most demanding projects.

Core Strengths

  • ✅ 30+ Patent Certificates
  • ✅ ISO9001, ISO14001, OHSAS 45001
  • ✅ IATF 16949 for Automotive
  • ✅ Independent R&D Team
2017

Year Established

29,000

Factory Space (㎡)

1,000+

Global Customers

30+

Patents Held

Global Market Trends & Industrial Applications

From New Energy Vehicles to Aerospace: The Expanding Horizon of OFC.

⚡ EV & Charging Infrastructure

The rise of 800V architecture in Electric Vehicles demands materials that can handle extreme heat and high conductivity. Oxygen-free copper tubes are used in liquid-cooled charging cables and high-precision battery connectors to reduce energy loss.

📡 5G & Vacuum Electronics

In high-frequency signal transmission, surface impurities can cause signal attenuation. Our OFC tubes provide the "Skin Effect" efficiency required for advanced waveguides and microwave tubes in 5G base stations.

🏥 Medical & Cryogenics

Used in MRI machines and scientific accelerators, oxygen-free copper maintains its thermal conductivity even at temperatures near absolute zero, preventing thermal runaway in superconducting magnets.

Localized Application Scenarios

Medical equipment

Medical Equipment

Copper has bactericidal, anti-inflammatory, and antioxidant effects, utilized in high-end medical diagnostic tools.

New energy vehicle

New Energy Vehicle

Optimal electrical and thermal conductivity makes it the best choice for power system efficiency.

Aerospace Applications

Aerospace Applications

Ideal for generators and data transmission parts in extreme high-altitude environments.

Research and Development Strength

With the industry's core technical personnel, Kepai possesses high independent R&D capacity. We have developed a new type of highly conductive oxygen-free tellurium copper. Compared with traditional copper tellurium, this material has lower impurities and higher consistency.

KEPAI NEW MATERIAL Factory

International Certification

Our company has passed ISO9001:2015, ISO14001:2015 and OHSAS 45001:2018, reflecting our international standards in quality, environment and occupational health.

Environmental Responsibility

We focus on sustainable development through the use of environmentally friendly, free-cutting copper alloys to reduce environmental impact during manufacturing.

Oxygen-Free Copper FAQ

Expert answers for procurement managers and engineers.

❓ What is the main benefit of Oxygen-Free Copper over ETP Copper?

The primary benefit is resistance to hydrogen embrittlement. OFC can be brazed or welded in hydrogen-rich atmospheres without becoming brittle. Additionally, its high purity results in higher electrical conductivity (up to 101% IACS) and lower outgassing in vacuum systems.

❓ Can Kepai provide custom dimensions for Oxygen-Free copper tubes?

Yes. As a custom Oxygen-free copper tube company, we offer a wide range of wall thicknesses and diameters tailored to specific industrial blueprints, especially for plasma cutting electrodes and heat exchangers.

❓ How do you ensure the purity of your C10100 tubes?

We utilize vacuum induction melting (VIM) and continuous casting under a protective atmosphere. Each batch undergoes spectroscopic analysis to ensure oxygen levels remain below 5ppm.

❓ What are the typical lead times for international orders?

With our China Factory 4.0 efficiency, standard stock items ship within 7-10 days, while custom alloy formulations typically range from 3-5 weeks depending on the complexity of the extrusion.

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