Copper Clad Aluminum
Copper Clad Aluminum (CCA) is a clad bi-metal utilizing electrical conductor grade aluminum as its core and oxygen free copper for its outer layer. The cladding process creates a permanent continuous weld between the two metals. The composite wire is uniquely suited to electrical applications where weight and conductivity issues are critical. The copper makes up either 10% or 15% of the cross sectional area of the wire and assures excellent solderability. AC conductivity at frequencies greater than 5MHz is equal to solid copper. CCA is manufactured in accordance with the requirements of ASTM B-566. Film Insulations are available on CCA. See the magnet wire insulation guide for enamel options.
Applications of Copper Clad Aluminum
Music
Amplification, Noise elimination, custom guitar cables, loudspeakers, subwoofers and high performance audio
Power
Wireless chargers, custom power supplies
Aerospace, military, commercial
Extreme temperature sensors, noise control, custom magnetics, underwater sensors
Space propulsion systems, sensors
Booms (Retractable tube for inflight tranfer of fuel)
Specialty resistors and capacitors
Wireless power transfer systems using inductive coupling through magnetic field
Electromagnetic radiation and atomic research
Coaxial Cable
Microwave connectors and cables
CATV semi-rigid trunk, distribution cables
Hobby motors and wiring
Residential power conductors
Automotive
Advanced fuel injection systems
Technical equipment
Outdoor control panels, sensors, printers
Hearing Aids
Button Cell Batteries
Copper Clad Aluminum Typical Physical Properties
| Test Measurement | 10% CCA | 15% CCA |
|---|---|---|
| DC Conductivity | 62.9% min IACS | 64.4% min IACS |
| % Copper by Volume | 8 - 12% | 13 - 17% |
| % Copper by Weight | 27% nominal | 34% nominal |
| Density | .120 lb/cu in | .131 lb/cu in |
| Tensile Strength (annealed) | 20 - 25 kPSI | 20 - 25 kPSI |
| Tensile Strength (hard drawn) | 16 - 30 kPSI | 16 - 30 kPSI |
| Elongation (annealed) | 5 - 15% minimum | 5 - 15% minimum |
| Elongation (hard drawn) | 1% minimum | 1% minimum |
(Tensile and elongation values are size dependent)
| Size (AWG) | Diameter (INCHES) | Area (CIR. MILS) | Feet Per Pound | Pounds Per 1000 FT | OHMS Per 1000 FT at 20° C | Size (AWG) |
|||
|---|---|---|---|---|---|---|---|---|---|
| 10% CCA | 15% CCA | 10% CCA | 15% CCA | 10% CCA | 15% CCA | ||||
| 14 | .0641 | 4109 | 215 | 197 | 4.64 | 5.06 | 3.91 | 3.79 | 14 |
| 15 | .0571 | 3260 | 270 | 247 | 3.69 | 4.03 | 4.93 | 4.78 | 15 |
| 16 | .0508 | 2581 | 342 | 314 | 2.92 | 3.19 | 6.23 | 6.05 | 16 |
| 17 | .0453 | 2052 | 430 | 394 | 2.32 | 2.53 | 7.83 | 7.60 | 17 |
| 18 | .0403 | 1624 | 542 | 497 | 1.84 | 2.01 | 9.90 | 9.61 | 18 |
| 19 | .0359 | 1289 | 684 | 627 | 1.46 | 1.59 | 12.5 | 12.1 | 19 |
| 20 | .0320 | 1024 | 862 | 791 | 1.16 | 1.26 | 15.7 | 15.2 | 20 |
| 21 | .0285 | 812.3 | 1087 | 997 | .920 | 1.00 | 19.8 | 19.2 | 21 |
| 22 | .0253 | 640.1 | 1378 | 1264 | .726 | .792 | 25.1 | 24.4 | 22 |
| 23 | .0226 | 510.8 | 1728 | 1585 | .580 | .632 | 31.5 | 30.5 | 23 |
| 24 | .0201 | 404.0 | 2184 | 2004 | .456 | .498 | 39.8 | 38.6 | 24 |
| 25 | .0179 | 320.4 | 2750 | 2524 | .363 | .396 | 50.2 | 48.7 | 25 |
| 26 | .0159 | 252.8 | 3498 | 3210 | .286 | .312 | 63.6 | 61.7 | 26 |
| 27 | .0142 | 201.6 | 4378 | 4018 | .228 | .249 | 79.7 | 77.3 | 27 |
| 28 | .0126 | 158.8 | 5554 | 5096 | .180 | .196 | 101 | 98.2 | 28 |
| 29 | .0113 | 127.7 | 6915 | 6346 | .145 | .158 | 126 | 122 | 29 |
| 30 | .0100 | 100.0 | 8811 | 8085 | .113 | .124 | 161 | 156 | 30 |
| 31 | .0089 | 79.21 | 11134 | 10216 | .0896 | .0979 | 203 | 197 | 31 |
| 32 | .0080 | 64.00 | 13777 | 12642 | .0726 | .0792 | 251 | 244 | 32 |
| 33 | .0071 | 50.41 | 17488 | .16048 | .0572 | .0624 | 319 | 310 | 33 |
| 34 | .0063 | 39.69 | 22214 | 20384 | .0449 | .0490 | 405 | 390 | 34 |
| 35 | .0056 | 31.36 | 28035 | 25725 | .0355 | .0387 | 513 | 498 | 35 |
| 36 | .0050 | 25.00 | 35244 | 32340 | .0283 | .0309 | 643 | 624 | 36 |
| 37 | .0045 | 20.25 | 43521 | 39935 | .0229 | .0250 | 794 | 770 | 37 |
| 38 | .0040 | 16.00 | 55002 | 50470 | .0181 | .0196 | 1000 | 975 | 38 |
| 39 | .0035 | 12.25 | 72090 | 66150 | .0139 | .0151 | 1310 | 1280 | 39 |
| 40 | .0031 | 9.610 | 91848 | 84280 | .0109 | .0119 | 1670 | 1620 | 40 |