Copper Wire
Walsin Lihwa has ushered in the Southwire Continuous Rod (SCR) process from the U.S., Niehoff MM85 drawing machine from Germany, and SAMP drawing machine from Italy to produce 8.0 mm SCR copper rod and 2.6 mm hard drawn \ annealed copper wire featuring high purity and easy processability. Established in 1987, the Yangmei plant has an annual capacity of 180,000 tons of copper rod and 72,000 tons of copper wire. The Dongguan plant was established in 2000 and has an annual capacity of 80,000 tons of copper rod as well as 72,000 tons of copper wire.
- Copper Rod
The diameter is 8.0 mm, made from electrolytic copper, copper purity higher than 99.95％, and easy processing, raw material for the power cable and wire industry. - Copper Wire
The diameter is around 1.8 mm – 3.5 mm, apply for such as enameled wires, communication cables, and power cables and electronic wire. - Advantages and Features
1.Enhanced end product performance
2.Extended product life
3.Excellent drawability
4.Excellent fine-wire processability
Manufacture Process and Applications
Specifications
Specifications of Cooper Bar and Wire:
| UNS Number C11040 ETP | |||
| Chemical Composition | ppm | ||
| Name,Min/max | Element | ||
| Copper, min | CU | 99.90% | |
| Tellurium, max | Te | 2 | |
| Selenium, max | Se | 2 | |
| Bismuth, max | Bi | 1 | |
| Group total, max | 3 | ||
| Antimony, max | Sb | 4 | |
| Arsenic, max | As | 5 | |
| Tin, max | Sn | 5 | |
| Lead, max | Pb | 5 | |
| Iron, max | Fe | 10 | |
| Nickel, max | Ni | 10 | |
| Sulfur, max | S | 15 | |
| Silver, max | Ag | 25 | |
| Oxygen | O | 100-650 | |
| Maxium allowable total (not lncluding oxygen) | 65 | ||
Specifications of Cooper Rod:
| ASTM B49 | ||||
|---|---|---|---|---|
| Diameter (mm) | Tolerance (mm) | Elongation (%), min | Conductivity (%), min | Resistivity Ref. (Ω/km), max |
| 8 | ±0.38 | 30.0 | 100.0 | 0.343 |
Specifications of Cooper Wire:
| Hard Drawn (JIS C3102 / 1.6mm~3.5mm) | ||||
|---|---|---|---|---|
| Diameter (mm) | Tolerance (mm) | Elongation (%), min | Conductivity (%), min | Resistivity Ref. (Ω/km), max |
| 1.6 | ±0.03 | 25.0 | 100.0 | 8.754 |
| 1.8 | ±0.03 | 25.0 | 100.0 | 6.775 |
| 2.0 | ±0.03 | 30.0 | 100.0 | 5.487 |
| 2.3 | ±0.03 | 30.0 | 100.0 | 4.150 |
| 2.6 | ±0.03 | 30.0 | 100.0 | 3.248 |
| 2.9 | ±0.03 | 30.0 | 100.0 | 2.610 |
| 3.2 | ±0.04 | 30.0 | 100.0 | 2.144 |
| 3.5 | ±0.04 | 30.0 | 100.0 | 1.792 |
| Annealed Copper Wire (JIS C3101 / 1.8mm~3.5mm) | ||||||
|---|---|---|---|---|---|---|
| Diameter (mm) | Tolerance (mm) | Elongation (%), min | Conductivity (%), min | Resistivity Ref. (Ω/km), max | Tensile strength (kg/mm2), mm | Breaking Load Ref. (kg), min |
| 1.8 | ±0.03 | 0.67 | 96.0 | 7.057 | 45.1 | 115 |
| 2.0 | ±0.03 | 0.72 | 97.0 | 5.657 | 44.9 | 141 |
| 2.3 | ±0.03 | 0.79 | 97.0 | 4.27 | 44.6 | 185 |
| 2.6 | ±0.03 | 0.86 | 97.0 | 3.348 | 44.3 | 235 |
| 2.9 | ±0.03 | 0.94 | 97.0 | 2.691 | 43.9 | 290 |
| 3.0 | ±0.03 | 0.96 | 97.0 | 2.530 | 43.8 | 310 |
| 3.2 | ±0.04 | 1.01 | 97.0 | 2.210 | 43.5 | 351 |
| 3.5 | ±0.04 | 1.08 | 97.0 | 1.847 | 43.2 | 416 |