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Copper Clad Aluminum |
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Copper Clad Aluminum |
| Copper Clad Aluminum | Typical Physical Properties |
| Copper clad aluminum is a composite wire consisting of an aluminum core clad with ETP copper. Even though the material is 90% aluminum, the wire has high frequency electrical properties equal to solid copper. MWS Wire Industries produces a broad line or round, flat, square, and rectangular copper clad aluminum wire. Copper clad bare, plated, and film insulated. Copper clad aluminum is widely used in applications requiring the conductivity of copper while retaining much of the weight advantages of aluminum. | A.C. conductivity > 5 MHz....Equal to solid copper |
| D.C. conductivity....65% IACS | |
| Density....1199 lbs / cubic inch | |
| % copper by volume....10% + 2% | |
| % copper by weight....26.8% + 2% | |
| Coefficient of thermal expansion....22.9 ppm / °C | |
| Tensile strength - Annealed....16,500 psi | |
| Tensile strength - Hard....23,5000 psi | |
| Yield strength - Annealed....12,000 psi | |
| Yield strength - Hard....21,6000 psi | |
| % elongation - Annealed....15% | |
| % elongation - Hard....2.5% | |
| Size | Diameter (inches) | Area (sq inches) | Feet per pound | Pounds per 1000 feet | Resistance (ohms per 1000 feet @ 20°C) | |||
| ( AWG ) | Nominal | Nominal | Copper | 10% Cu / Al | Copper | 10% Cu / Al | Copper | 10% Cu / Al |
| 14 | .0641 | .00323 | 80.4 | 215 | 12.4 | 4.64 | 2.52 | 3.91 |
| 15 | .0571 | .00256 | 101 | 270 | 9.87 | 3.69 | 3.18 | 4.93 |
| 16 | .0508 | .00203 | 128 | 342 | 7.81 | 2.92 | 4.02 | 6.23 |
| 17 | .0453 | .00161 | 161 | 430 | 6.21 | 2.32 | 5.05 | 7.83 |
| 18 | .0403 | .00128 | 203 | 542 | 4.92 | 1.84 | 6.39 | 9.90 |
| 19 | .0359 | .00100 | 256 | 684 | 3.90 | 1.46 | 8.05 | 12.50 |
| 20 | .0320 | .000804 | 323 | 862 | 3.10 | 1.16 | 10.1 | 15.7 |
| 21 | .0285 | .000636 | 407 | 1087 | 2.46 | .920 | 12.3 | 19.8 |
| 22 | .0253 | .000503 | 516 | 1378 | 1.94 | .726 | 16.2 | 25.1 |
| 23 | .0226 | .000401 | 647 | 1728 | 1.55 | .580 | 20.3 | 31.5 |
| 24 | .0201 | .000317 | 818 | 2184 | 1.22 | .456 | 25.7 | 39.8 |
| 25 | .0179 | .000252 | 1030 | 2750 | .970 | .363 | 32.4 | 250.2 |
| 26 | .0159 | .000199 | 1310 | 3498 | .765 | .286 | 41.0 | 63.6 |
| 27 | .0142 | .000158 | 1640 | 4378 | .610 | .228 | 51.4 | 79.7 |
| 28 | .0126 | .000125 | 2080 | 5554 | .481 | .180 | 65.3 | 101 |
| 29 | .0113 | .000100 | 2590 | 6915 | .387 | .145 | 81.2 | 126 |
| 30 | .0100 | .0000785 | 3300 | 8811 | .303 | .113 | 104 | 161 |
| 31 | .0089 | .0000622 | 4170 | 11134 | .240 | .0896 | 131 | 203 |
| 32 | .0080 | .0000503 | 5160 | 13777 | .194 | .0726 | 162 | 251 |
| 33 | .0071 | .0000396 | 6550 | 17488 | .153 | .0572 | 206 | 319 |
| 34 | .0063 | .0000312 | 8320 | 22214 | .120 | .0449 | 261 | 405 |
| 35 | .0056 | .0000246 | 10500 | 28035 | .0949 | .0355 | 331 | 513 |
| 36 | .0050 | .0000196 | 13200 | 35244 | .0757 | .0283 | 415 | 643 |
| 37 | .0045 | .0000159 | 16300 | 43521 | .0613 | .0229 | 512 | 794 |
| 38 | .0040 | .0000126 | 20600 | 55002 | .0484 | .0181 | 648 | 1000 |
| 39 | .0035 | .00000962 | 27000 | 72090 | .0374 | .0139 | 847 | 1310 |
| 40 | .0031 | .00000755 | 34400 | 91848 | .0291 | .0109 | 1080 | 1670 |
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