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C11000 Copper Wire is a high-purity electrolytic tough pitch (ETP) copper material known for its excellent electrical conductivity, thermal conductivity, and reliable processing performance. It offers an ideal balance of conductivity, flexibility, and cost efficiency for a wide range of electrical and industrial applications.
Widely used in electrical conductors, transformers, connectors, terminals, and industrial equipment requiring dependable conductivity and consistent performance.
C11000 copper wire (also referred to as ETP copper wire, Electrolytic Tough Pitch C11000 conductor, or CDA 110 wire) is the industry-standard high-conductivity pure copper wire specified for electrical power transmission, magnet wire windings, and electronic connections. Containing a minimum copper purity of 99.90%, C11000 copper wire delivers an outstanding electrical conductivity rating of at least 100% IACS, superior thermal transfer, and consistent mechanical ductility.
At XQJ Metal, we manufacture high-precision C11000 copper wires in fine drawn gauges, heavy-duty spooled coils, and stranded wire forms. Produced in strict compliance with ASTM B1, ASTM B33, and EN 13602 standards, our ETP copper wire undergoes continuous bright annealing to ensure a smooth surface finish, uniform elongation, and tight diameter tolerances.
| Parameter | Standard Value / Specification |
| Material Grade | C11000 / CDA 110 / ETP (Electrolytic Tough Pitch Copper) |
| Copper Purity (Cu) | ≥ 99.90% |
| Electrical Conductivity | ≥ 100% IACS |
| Wire Diameter Range | 0.05mm – 8.0mm (Precision Fine & Heavy Gauge Wire) |
| Spool & Package Types | DIN 125, DIN 200, DIN 250, PT-15, PT-25, Basket Coils |
| Tempers Available | Soft Annealed (O60), Half Hard (H02), Full Hard (H04) |
| International Standards | ASTM B1, ASTM B33, EN 13602, JIS C1100, ISO 9001 |
Q1: What is the main difference between C11000 and C10200 copper wire?
A: C11000 is Electrolytic Tough Pitch (ETP) copper with residual oxygen, offering maximum cost-efficiency for general power distribution, transformer coils, and electrical wiring. C10200 is Oxygen-Free Copper (OFC) with less than 0.001% oxygen, which is specifically required for vacuum tube electronics or high-temperature welding in hydrogen atmospheres to prevent hydrogen embrittlement.
Q2: What diameter tolerances can be achieved for fine C11000 copper wire?
A: Utilizing modern diamond drawing dies, we achieve precision diameter tolerances as tight as ±0.002mm for fine copper wire gauges.
Q3: What is your Minimum Order Quantity (MOQ) for custom spooled C11000 wire?
A: Our standard MOQ for custom drawn wire gauges is 200 kg. Standard warehouse spool sizes can be shipped in smaller sample quantities immediately.
If you require specific wire tempers, tin-plated copper wire, or technical datasheets, explore our full range of Copper Wire Products or Contact Our Sales Engineering Team directly for a fast factory quotation.
Our materials support a wide range of construction and infrastructure projects
C11000 copper wire is electrolytic tough pitch (ETP) copper with excellent electrical and thermal conductivity, while C10200 is an oxygen-free copper alloy intended for applications requiring higher purity and lower oxygen content. The appropriate grade should be selected according to the operating environment and performance requirements.
C11000 copper wire provides excellent electrical conductivity, low electrical resistance, and stable current-carrying performance, making it an ideal choice for power transmission, electrical wiring, transformer windings, and industrial electrical equipment.
C11000 copper wire combines high conductivity, excellent ductility, and reliable processing performance, making it well suited for motor windings, transformer coils, generators, inductors, and other electrical winding applications that require consistent electrical performance and long-term reliability.
It offers excellent resistance to seawater corrosion and maintains strength in humid and salt-rich conditions.
No. Strength is achieved through strain hardening rather than heat treatment.
Yes. It provides excellent weldability for structural fabrication.
Yes, it is commonly applied in tanks and pressure equipment.
Yes. It provides higher strength compared with most non-heat-treated aluminum alloys.
Yes. Thickness, width and temper can be adjusted based on project demand.
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