Copper Wire Rod – Cu-ETP (C11000 / CW004A) is manufactured by the CCR – Continuous Casting and Rolling process to ensure uniform mechanical and electrical properties.
Its high conductivity and purity make it the preferred material for drawing fine and medium copper wires used in electrical conductors, cables, and enameled wire applications.
Standards:
ASTM B49 | EN 1977 | JIS C1100 | UNS C11000 | ISO 1634-1
Technical Data – Typical Dimensions
Copper Wire Rod 08mm (Cu_ETP)
Chemical Composition (% mass)
| Element | Max (ppm) | Element | Max (ppm) |
|---|---|---|---|
| P | < 1 | Bi | 0.9 |
| S | 1.5 | Ag | < 0.5 |
| Te | 4.1 | Zn | 3.6 |
| As | < 1 | Ni | < 1 |
| Sb | 1.2 | Fe | 1.4 |
| Cd | < 0.2 | Mn | < 0.2 |
| Cu | ≥ 99.997 % | — | — |
Copper purity is continuously monitored during production.
Physical and Mechanical Properties
| Property | Typical Value | Test Condition |
|---|---|---|
| Nominal Diameter | 8.0 mm (5/16″) | EN 1977 |
| Diameter Tolerance | ± 0.38 mm | — |
| Oxygen Content | 180–300 ppm | — |
| Density | 8.94 g/cm³ | 20 °C |
| Electrical Conductivity | 58.58 m/Ω·mm² (≈ 101.4 % IACS) | 20 °C |
| Electrical Resistivity | ≤ 17.24 nΩ·m | — |
| Tensile Strength | 225 MPa ± 5 | 200 mm |
| Elongation | ≥ 40 % | EN 1977 |
| Surface Quality | Bright, smooth, crack-free | — |
Applications
Electrical wire drawing (fine & medium)
Power, control & communication cables
Busbars, transformer windings
Copper alloy manufacturing
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