Bare TU1 Copper Wire
Gnee Steel (Tianjin) Co., Ltd. is one of the most professional manufacturers and suppliers of bare tu1 copper wire in China, also supports customized service. Welcome to buy discount bare tu1 copper wire for sale here from our factory. Quality products and reasonable price are available.
This bare copper wire is manufactured under stringent vacuum conditions, achieving a purity of ≥99.99% and an oxygen content of less than 10 ppm (0.001%). Unlike standard ETP copper (T2/C11000), TU1 is completely unaffected by hydrogen embrittlement, allowing for high-temperature processing in reducing atmospheres. With a conductivity exceeding 101% IACS, it is ideal for high-fidelity audio cables, vacuum electronics, and low-temperature superconducting applications.
Application areas
The characteristics of TU1 oxygen-free copper wire determine its wide range of applications. Due to its high purity, good processing performance and corrosion resistance, TU1 solid copper wire is widely used in electronic equipment, power engineering, aerospace and other fields. In electronic equipment, TU1 bare copper wire is commonly used in the manufacture of wires and cables to ensure the stability and reliability of signal transmission; while in the aerospace field, its excellent performance ensures the stable operation of aerospace components and aerospace cables in extreme environments.
High level of production technology of TU1 bare copper wire
Chemical Composition of TU1 Copper Wire
| Element | Maximum Content (wt%) |
|---|---|
| Copper (Cu) | 99.97 |
| Phosphorus (P) | 0.002 |
| Bismuth (Bi) | 0.001 |
| Antimony (Sb) | 0.002 |
| Arsenic (As) | 0.002 |
| Iron (Fe) | 0.004 |
| Nickel (Ni) | 0.002 |
| Lead (Pb) | 0.003 |
| Tin (Sn) | 0.002 |
| Sulphur (S) | 0.004 |
| Zinc (Zn) | 0.003 |
| Oxygen (O) | 0.002 |
Physical Properties of TU1 Copper Wire
| Property | Specification |
|---|---|
| Density (g/cm³) | 8.94 |
| Electrical Conductivity | High (Excellent conductivity) |
| Thermal Conductivity | High (Excellent thermal conductivity) |
| Coefficient of Linear Expansion (10^-6/℃) | Approx. 16.2 |
| Hardness (HB) | 80 |
| Ductility/Plasticity | Good (High ductility and plasticity) |
TU1 oxygen-free copper is also widely used in chemical equipment manufacturing, automobile manufacturing and other industries. In chemical equipment, its corrosion resistance can ensure long-term stable operation of the equipment, while in the field of automobile manufacturing, its excellent electrical conductivity can be used to manufacture automobile circuits and engine parts, to enhance automobile performance and safety.
Grade Comparison: TU1 (OFC) vs. T2 (ETP)
| Feature | TU1 (Oxygen-Free) | T2 (Electrolytic Tough Pitch) |
| Oxygen Content | Extremely Low (<10ppm) | ~200-400ppm |
| Purity | ≥ 99.99% | ≥ 99.90% |
| Conductivity | 101% IACS | 100% IACS |
| Hydrogen Embrittlement | Immune (Safe for H2 annealing) | Susceptible (Risky) |
| Crystal Structure | Uniform, Large Grains | Standard |
| Cost | Premium ($) | Standard () |
| Best For | Hi-Fi Audio, Vacuum Seals, Cryogenics | General Wiring, Power Cables, Grounding |
Manufacturing & Packaging
Upward Continuous Casting: Our process ensures oxygen is excluded from the molten copper.
Diamond Die Drawing: Guarantees precise diameter control and a mirror finish.
Vacuum Packaging: Finished spools are vacuum-sealed with desiccants to prevent even trace oxidation during storage and transit.
Spool Types: DIN 100/125/160/200/250/355/400/500/630 plastic spools available."
Highly reliable team supplying TU1 grounding wire
We have a team of highly skilled professionals who are committed to providing high quality products and services to our customers. Our team has the following advantages over our competitors:
Technical expertise: Our team has excellent technical expertise in the production of copper products.
Experience: Our team has many years of experience in the industry and a deep understanding of the market.
Customer Oriented: We are customer oriented and prioritize our customers' needs.
Responsive: Our team is responsive and able to quickly resolve any issues that arise.
Communication: We have excellent communication skills and keep our customers informed throughout the production process.
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