High-Quality C11000 Copper Bar Factories & Companies

The Global Benchmark for High-Conductivity Electrolytic Tough Pitch (ETP) Copper Solutions for Future-Tech Industries.

1 Global Industrial Context of C11000 Copper Bars

C11000 copper, commonly known as Electrolytic Tough Pitch (ETP) copper, represents the global standard for high electrical and thermal conductivity. As the world pivots toward the Green Energy Transition and Industry 4.0, the demand for C11000 copper bars has surged exponentially. With a minimum conductivity rating of 100% IACS (International Annealed Copper Standard), C11000 is the backbone of modern power distribution, renewable energy systems, and high-frequency communication infrastructure.

Information Gain: Unlike standard commercial copper, C11000 processed by Sichuan Kepai undergo rigorous electrolytic refining to ensure a purity level of at least 99.90%, specifically controlling oxygen content to optimize mechanical workability without sacrificing electrical efficiency.

EV & Battery Storage

In the New Energy Vehicle (NEV) sector, C11000 copper bars are utilized for busbars and battery connectors due to their superior current-carrying capacity and ease of fabrication.

5G & Telecommunications

High-frequency signal transmission requires materials with minimal impedance. C11000 provides the necessary physical properties for 5G base station components.

Aerospace & Precision Tech

Thermal management is critical in aerospace. The high thermal conductivity of ETP copper ensures efficient heat dissipation in compact electronic modules.

i Sichuan Kepai New Material Co., Ltd.

Established in 2017, Sichuan Kepai New Materials Co., Ltd. is a high-tech enterprise integrating research and development, production, and sales. We are at the forefront of the national 13th Five-Year Plan for strategic emerging materials. Our expertise spans tellurium copper, high-conductivity oxygen-free copper, silver copper, and dispersion copper.

2017 Established Year
9000㎡ Production Base
1000㎡ R&D Office Space

Sustainable Development Philosophy

Located in the western area of the Sichuan Guanghan Industrial Development Zone, Kepai leverages superior geographical logistics. We adhere to "innovation-driven development, quality wins the market," ensuring our high-end copper alloy materials contribute to global industrial upgrading and environmental sustainability.

Advanced Manufacturing & Technical Strength

Our core competitiveness lies in our R&D team, composed of senior industry experts who master international cutting-edge technology. Through industry-university-research collaboration, we have achieved breakthroughs in high-performance tellurium copper and oxygen-free high-conductivity variants.

Smelting
Smelting
Laying-off
Laying-off
Extrusion
Extrusion
Drawing
Drawing
Straightening
Straightening
Package
Package
Conductance instrument
Eddy Current Test
Test room
Chemical Composition Room

The "China Efficiency" Advantage in Copper Production

Supply Chain Integration

China's copper processing industry benefits from a complete ecosystem—from smelting to precision machining—reducing lead times by 30-40% compared to Western counterparts.

Cost-Effective Innovation

Sichuan Kepai leverages localized R&D to produce oxygen-free high-conductivity copper that meets international ASTM B187 standards but at a significantly more competitive price point.

Rapid Prototyping

Our facility is designed for flexibility. Whether you need a standard C11000 bar or a customized profile, our integrated extrusion and drawing lines allow for fast turnaround on OEM specifications.

Quality Assurance & Certifications

Our commitment to quality is backed by comprehensive international standards and internal testing protocols, including metallographic analysis and microcomputer-controlled universal testing.

Cert 1
Cert 2
Cert 3
Cert 4
Cert 5
Cert 6

📈 Future Trends in Copper Metallurgy

The copper industry is moving towards Miniaturization and Higher Strength-to-Weight Ratios. While C11000 remains the standard, the market is shifting towards alloys that offer "machinability" without losing conductivity. This is where Kepai's Tellurium Copper (C14500) and Sulfur Copper (C14700) are becoming game-changers, offering 85% machinability compared to standard C11000.

Global Procurement Tip: When sourcing C11000 bars, international buyers should focus on "Conductivity Certification (IACS%)" and "Grain Size Control." Improperly annealed copper can lead to stress corrosion cracking in high-vibration environments like EV battery packs.

? Frequently Asked Questions (FAQ)

What is the difference between C11000 and C10100? +
C11000 (ETP) contains a small amount of oxygen (roughly 0.04%), whereas C10100 (OFE) is oxygen-free. C11000 is ideal for most electrical applications, while C10100 is reserved for vacuum electronics where hydrogen embrittlement is a concern.
How does Sichuan Kepai ensure the conductivity of its C11000 copper bars? +
We use eddy current conductance instruments and chemical composition testing on every batch to ensure a minimum of 100% IACS, meeting international ASTM and DIN standards.
Can C11000 copper bars be customized in terms of shapes? +
Yes, our extrusion and drawing equipment allows us to produce round, square, hexagonal, and custom-profile busbars tailored to your blueprint.
What is the typical lead time for international shipping? +
Depending on the order volume, production typically takes 7-15 days, with efficient logistics from Sichuan via the China-Europe Railway or sea freight through major ports.

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