Main properties of copper wire for wire and cable
Release time:
2024-11-18
Copper Pure copper, also known as red copper, is a heavy metal with a 8.89 specific gravity and a purple-red metallic luster.
IEC specifies standard soft copper with density of 8.89; At 20 ℃, the resistivity is 0.017241Ω.mm2/m (conductivity is 1/58 s.m/mm2) and the temperature coefficient of resistance is 3.93 × 10-8/℃, at which time the conductivity is called 100 IACS. The conductivity of oxygen-free copper can reach 102%. The conductivity decreases with increasing oxygen content. The conductivity of silver can reach 108%IACS.
| General properties and process parameters of copper | |||
| Project | Numerical | Project | Numerical |
| Density (20℃)/(g/cm2) | 8.89 | Standard electrode potential/V | -0.334 |
| Melting point/℃ | 1084.5 | Ingot temperature/℃ | 1120~1170 |
| Specific heat capacity (20 ℃)/ J/(g · K) | 0.412 | Hot rolling temperature/℃ | 820~860 |
| Thermal conductivity W /(m · K) | 386 | Annealing temperature/℃ | 420~700 |
| Heat of dissolution/(J/g) | 212 | ||
| Main properties of copper wire for wire and cable | |||||
| Brand | Status | Diameter/mm | Tensile strength Mpa ≥ | Elongation% ≤ | Resistivity at 20 ℃/(Ω • mm2/m)≤ |
| T1,TU1,T2,T3,TU2 | R Heat | 6.0~35 | 40 | 0.01707 | |
| 35 | 0.017241 | ||||
| TU1,TU2 | Y hard | 6.0~7.0 | 370 | 2.0 | TU1 0.01750 TU2 0.01777 |
| >7.0~8.0 | 345 | 2.2 | |||
| >8.0~9.0 | 335 | 2.4 | |||
| >9.0~10.0 | 325 | 2.8 | |||
| >10.0~11.0 | 315 | 3.2 | |||
| >11.0~12.0 | 290 | 3.6 | |||
T1,TU1 grade copper wire blank chemical composition conforms to high purity cathode system, other grade copper wire blank is produced from standard cathode copper. The copper content (including silver) of T2 and TU2 brands shall not be less than 99. 95%. The copper content (including silver) of T3 brand 3 shall not be less than 99.90%, and the oxygen content shall not be greater than T1 0.045% respectively. T2,T3: 0.059%;TU1,TU2 0.0010%.
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