Products Description
C10100 copper tube is a high-purity oxygen-free expansion (Oxygen-Free Electronic Copper, OFE) copper alloy with extremely low oxygen content, usually less than 0.001%. This copper tube is widely used in electronics, electrical appliances, communication equipment and other fields due to its excellent electrical and thermal conductivity.
C10100 copper tube has good plasticity and machinability and can be processed through a variety of processes such as cold rolling, drawing, annealing, etc. In addition, it also has excellent corrosion resistance and mechanical properties, allowing it to maintain stable performance in a variety of environments.
Core Advantages
Ultra-Purity:
Copper purity ≥99.99%, oxygen content ≤5ppm, total impurities <0.001%, eliminating the risk of hydrogen embrittlement; it will not become embrittled even when heated at high temperatures in reducing gases.
Ultra-Low Loss:
Conductivity close to the theoretical limit of pure copper, extremely low resistivity, reducing energy loss and improving current transmission efficiency.
Stable Machining Performance:
Excellent cold and hot working performance; can be drawn into ultrafine wires, deep-drawn, and electropolished (surface roughness <1nm), meeting the needs of precision manufacturing.
Chemical Composition
| Sb | As | Cu | O | P | Te | |
| Min/Max | 0.0004 | 0.0005 | 99.99 min | 0.0005 | 0.0003 | 0.0002 |
| Nominals | - | - | - | - | - | - |





Application Areas
Cutting-Edge Technologies:
Nuclear Fusion Devices: First-wall material, withstanding extreme temperatures and particle bombardment.
Synchrotron Radiation Beamlines: High-precision components, ensuring beam stability.
Quantum Bit Superconducting Circuits: Superconducting magnet-stabilized substrate, reducing resistance noise.
Terahertz Waveguide Components: High-frequency signal transmission, reducing signal attenuation.
Space Station Thermal Control Systems: Piping materials, efficiently conducting heat.
Semiconductor Industry:
Wafer-Level Packaging Copper Pillars: High-conductivity connections, improving chip performance.
EUV Lithography Machine Mirror Substrates: Low coefficient of thermal expansion, ensuring lithography precision.
Atomic Layer Deposition (ALD) Equipment Cavities: Corrosion resistant, extending equipment lifespan.
Semiconductor Epitaxial Growth Substrates: High-purity substrate, improving epitaxial layer quality.
Specialty Industries:
Superconducting Magnet Stabilization: Substrate material, maintaining superconductivity stability.
Standard Resistance References: High-precision resistance materials used for instrument calibration.
Gravitational wave detector reflector: Low thermal noise, improving detection sensitivity.
High-energy laser resonator: High thermal conductivity, rapid heat dissipation, preventing thermal damage.
FAQ
Q1: What is C10100 Copper?
A1: C10100, also known as Oxygen-Free Electronic (OFE) Copper, is a pure copper grade with a minimum of 99.99% Cu content. It is characterized by having virtually no oxygen (typically < 0.0005%) and extremely high electrical conductivity.
Q2: What is the key difference between C10100, C10200 (OF), and C11000 (ETP)?
A2: The primary difference is oxygen content and purity.
C10100 (OFE): 99.99% Cu, oxygen-free. Highest conductivity and formability.
C10200 (OF): 99.95% Cu, oxygen-free. Slightly lower purity than OFE.
C11000 (ETP): 99.90% Cu, contains oxygen. Standard for general electrical applications but less suitable for high-temperature, reducing atmospheres.
Q3: What does "OFE" stand for?
A3: OFE stands for Oxygen-Free Electronic.
Q4: What is the electrical conductivity of C10100?
A4: C10100 has the highest electrical conductivity of all coppers, rated at 101% IACS (International Annealed Copper Standard). This is the benchmark for 100% conductivity.
about us
GNEE is a leading manufacturer and global supplier of high-quality, precision-engineered copper products. We specialize in providing a comprehensive range of copper solutions tailored to meet the rigorous demands of various industries worldwide, including HVAC/R, automotive, construction, electrical engineering, and industrial machinery.
Our Extensive Product Portfolio:
Copper Tubes & Pipes:
We supply a full spectrum of copper tubes, including Round Pipes, Square Pipes, Welded Pipes, Seamless Pipes, Heat Exchanger Tubes, and Condenser Tubes, designed for superior thermal conductivity and corrosion resistance.
Copper Sheets & Plates:
Our flat-rolled products range from delicate Copper Foils and Thin Sheets to heavy-duty Plates and Circles (Round Plates), ideal for fabrication, roofing, and electrical applications.
Copper Bars & Rods:
We offer Copper Bars in various profiles such as Round Bars, Square Bars, and Hexagonal Bars, providing excellent machinability and strength for precision parts.
Copper Wires & Strips:
Our product line also includes high-conductivity Copper Wires and finely manufactured Copper Strips, essential for electrical components and connectors.
All our products are manufactured to international quality standards, with a strong focus on common American grades and ASTM specifications to ensure global compatibility and performance. Our key materials include:
C11000 (Electrolytic Tough Pitch - ETP Copper)
C10200 (Oxygen-Free Copper - OFC)
C12200 (Phosphorus Deoxidized Copper, DHP)
C10100 (Oxygen-Free Electronic Copper - OFE)
C26000 (Cartridge Brass, 70/30)
C27200 (Brass, 65/35)
C44300, C68700 (Admiralty Brass)
C70600 (Copper Nickel, 90/10)
C71500 (Copper Nickel, 70/30)
These materials conform to critical standards such as ASTM B111 (Copper and Copper-Alloy Seamless Condenser Tubes and Ferrule Stock), ASTM B68 (Seamless Copper Tube), ASTM B75 (Seamless Copper Tube), ASTM B88 (Seamless Copper Water Tube), ASTM B152 (Copper Sheet, Plate, Strip, and Rolled Bar), ASTM B187 (Copper Bus Bar, Rod, and Shapes), and ASTM B601 (Temper Designations for Copper and Copper Alloys).




