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Zhejiang Jingliang Copper-Tube Products Co., Ltd

Wholesale Electrical Conductivity Copper

Electrical Conductivity Copper

-- Steady & Reliable Manufacturer --

Powering the Future with High-Purity Copper

Electrical conductivity copper is the foundation of the world’s power grids, electronics, and telecommunications. When it comes to conducting electricity, purity is the most critical factor; even trace amounts of impurities like phosphorus or oxygen can significantly degrade the material's ability to move electrons. At Zhejiang Jingliang, we produce high-purity C11000 (ETP - Electrolytic Tough Pitch) and C10200 (OF - Oxygen-Free) copper, reaching an electrical conductivity of at least 100% IACS (International Annealed Copper Standard). This ensures that electrical systems operate with minimal energy loss and heat generation. From high-voltage busbars to delicate semiconductor leads, our electrical-grade copper is manufactured using a controlled smelting and drawing process that eliminates contaminants and optimizes the grain structure for the highest possible conductivity.

As global energy systems transition to electrification and renewable sources, the demand for high-conductivity copper has reached unprecedented levels. Our tubes and components are used in the core of transformers, generators, and electric motors where efficiency is paramount. We focus on the "Skin Effect" and thermal management properties of copper, ensuring that our products can handle the rapid load changes of modern digital power supplies. Our electrical copper also features excellent surface quality, which is vital for high-frequency applications and for components that require plating with silver or tin. By maintaining strict metallurgical control, we provide a product that allows electrical engineers to push the limits of power density while ensuring the long-term reliability of the equipment. Whether it is for a multi-megawatt wind turbine or a high-speed data center, our conductivity copper is the benchmark for performance.

Electrical & Physical Parameters

PropertyConductivity Grade Spec
Material GradeC11000 (ETP), C10100/C10200 (Oxygen-Free)
Electrical Conductivity100% to 102% IACS
Resistivity (at 20°C)≤ 0.01724 Ω·mm²/m
Thermal Conductivity390 - 401 W/(m·K)
Copper Purity99.90% to 99.99% Minimum
Melting Point1083°C
Hardness (HV)45 (Soft) to 110 (Hard)
Coefficient of Expansion17.7 x 10⁻⁶ / K
Surface FinishMirror Bright / Oxygen-Free Annealed

Applications in Energy & Electronics

High-conductivity copper is found at every stage of the electrical supply chain. It is used to manufacture Busbars for power distribution panels, where it must carry massive currents with low voltage drop. In the renewable energy sector, it is used for Inverter Components and solar cell connectors. In the automotive industry, it is essential for EV Battery Terminals and charging port connectors. Our copper tubes are also used in Induction Heating Coils and high-frequency wave guides. In the world of industrial machinery, it forms the windings of high-efficiency motors and the core of welding electrodes. Because of its thermal properties, it is also used in cooling systems for high-power semiconductors. Finally, it is the standard for grounding systems and lightning protection, where its low resistance ensures that electrical surges are safely dissipated into the earth.

Advantages of 100% IACS Copper

The primary advantage is "Energy Efficiency." Higher conductivity means less energy is lost as waste heat, which reduces the operational costs of electrical equipment and the need for large-scale cooling systems. Another benefit is "High Power Density." Our high-purity copper allows for smaller, lighter components that can carry the same amount of current as larger components made from lower-grade material. This is a critical advantage in aerospace and EV design. Our "Oxygen-Free" grades offer the additional benefit of being immune to hydrogen embrittlement, making them safe for high-temperature brazing and welding. From a long-term perspective, copper's natural durability and resistance to oxidation ensure that electrical connections remain stable over decades, preventing the hazardous "hot spots" caused by rising resistance. Lastly, the high scrap value of electrical copper supports a profitable recycling loop at the end of the product's life.

Supply Chain and Global Logistics

We supply electrical conductivity copper in various forms, including hollow tubes, solid bars, and custom-profile busbars. Payment is generally T/T or L/C at sight. Given the volatility of the copper commodity market, we offer flexible pricing models (LME-based) to help our clients manage cost risks. We package our electrical products in vacuum-sealed bags with desiccant to prevent surface oxidation during sea freight, ensuring the material arrives "Bright and Clean." Our production facility is located near the world’s busiest shipping lanes, allowing us to export to power-grid projects and electronics manufacturers globally. We provide full chemical analysis and conductivity test reports with every shipment to verify that the IACS rating meets your technical requirements.

  • Q: What is the difference between ETP and OF copper?
  • A: ETP (C11000) is standard for most electrical uses. OF (C10200) is oxygen-free, meaning it has higher purity and can be brazed without the risk of cracking, making it ideal for high-vacuum and high-temp applications.
  • Q: Do you offer tin or silver plating?
  • A: Yes, we offer in-house plating to improve the contact resistance and corrosion protection of electrical connectors.
  • Q: How do you verify the 100% IACS rating?
  • A: We use eddy current conductivity meters and precision bridge tests on every batch to ensure compliance with IACS standards.
ABOUT US
30+YEARS OF
EXPERIENCE
About Us

A Reliable Partner of the Copper Tube Industry

Zhejiang Jingliang Copper-Tube Products Co., Ltd is China Electrical Conductivity Copper and Electrical Conductivity Copper Factory, which established in 1994, has been deeply involved in the copper tube industry for over three decades. The company primarily produce various specifications of products such as copper tubes, brass tubes, copper square tubes, fin copper tubes, copper capillary tubes, condenser copper tubes, copper evaporator tubes, and conductive rods, which are of quality and have earned the trust and acclaim of customers both domestically and internationally.

Wide Applications:

These products are widely used in various fields including air conditioning, refrigeration, heat exchange, sanitary ware, automotive, machinery, electric furnaces, and chemical industries.

Convenient Transportation:

Strategically located in Tangpu Town, renowned as the “home of copper tubes” in East China. Our company enjoys a prime location, adjacent to the Shangsan Expressway and National Highway 104, and is conveniently situated just over 70 kilometers from Hangzhou and Ningbo, ensuring easy accessibility and a business position.

Strong Financial Resources:

With its strong financial resources and advanced copper tube processing technology, our company holds an advantageous position in market share, brand value, technological content, and product quality, becoming a preferred supplier for many listed groups.

Large Scale Production:

The company occupies an area of over 20,000 square meters, with a construction area of 12,800 square meters. In 2022, our annual production exceeded 7,500 tons, with a value output of up to 450 million yuan, demonstrating our strong production capacity and market competitiveness.

Comprehensive Industry Chain:

Jingliang has now developed into a complete industrial chain integrating smelting, extrusion, drawing, precision rolling, and annealing. It has been awarded multiple honors, including "Top Ten Copper Tube Enterprises" and "Leading Taxpayer in the Copper Tube Industry".

Smart Manufacturing:

Jingliang Copper-Tube Products will better integrate the concept of factory construction into its corporate development strategy, insist on refining technology and polishing products more finely, and the future of "intelligent manufacturing".

Genuine Cooperation:

Zhejiang Jingliang Copper-Tube Products Co.,Ltd warmly welcomes friends from all walks of life to visit and offer guidance. We look forward to joining hands with you to create a brilliant future together.

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