In the intricate network of modern electrical systems, one material quietly performs an essential role—much like blood circulating through the human body, delivering energy and powering the entire system. This material is C11000 electrolytic copper, also known as ETP (Electrolytic Tough Pitch) copper, a commercially pure copper renowned for its exceptional conductivity, superior workability, and reliable corrosion resistance.

Imagine a massive power plant generating electricity that must travel through efficient transmission networks to reach homes and businesses, illuminating every corner of a city. C11000 electrolytic copper serves as the critical component in these transmission networks, minimizing energy loss through its ultra-high conductivity to ensure safe, stable power delivery.

As one of the most common copper materials available, C11000 contains at least 99.9% copper content. This high purity gives it superior properties that excel in various applications.

• Superior Workability: Excellent for both cold and hot working processes, with Vickers hardness ranging from 45 to 155 HV.
• Exceptional Weldability: Compatible with various welding methods including gas, arc, and resistance welding.
• Ultra-High Conductivity: Achieves 101% IACS (International Annealed Copper Standard) conductivity.
• Outstanding Corrosion Resistance: Performs reliably in harsh environments including exposure to water, acids, and alkalis.
• Heat Treatment Adaptability: Annealing can enhance stress resistance and extend service life.

During electrolytic refining, C11000 maintains oxygen content between 300-400 ppm. This seemingly small amount plays a crucial role—oxygen combines with impurities to form oxides, reducing their negative impact on conductivity. Without this oxygen interaction, impurities in solid solution would significantly increase resistivity.

• Sheets: Under 3/16 inch thickness for electronic components
• Plates: Over 3/16 inch thickness for structural applications
• Round Bars: For large cables or small wires
• Square/Rectangular Bars: Ideal for machining and forming projects

• Power Distribution: Busbars, transformer windings, and grounding strips
• Electrical Components: Motor windings, commutators, and switchgear
• Industrial Products: Heat sinks, welding fixtures, and battery components

• C10200 Oxygen-Free Copper: Higher purity for specialized electronics
• C14500 Tellurium Copper: Improved machinability
• Aluminum: Lightweight alternative where conductivity can be compromised

C11000 electrolytic copper remains fundamental to electrical engineering, combining reliability, efficiency, and sustainability. As technology advances, this material continues to evolve—enhancing its properties to meet growing demands in power transmission, electronics, and industrial applications.

From massive power grids to delicate electronic circuits, C11000 forms the invisible foundation of modern electrical infrastructure, powering progress while maintaining its position as the gold standard in conductive materials.