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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 Measurement10% CCA15% CCA
DC Conductivity62.9% min IACS64.4% min IACS
% Copper by Volume8 - 12%13 - 17%
% Copper by Weight27% nominal34% nominal
Density.120 lb/cu in.131 lb/cu in
Tensile Strength (annealed)20 - 25 kPSI20 - 25 kPSI
Tensile Strength (hard drawn)16 - 30 kPSI16 - 30 kPSI
Elongation (annealed)5 - 15% minimum5 - 15% minimum
Elongation (hard drawn)1% minimum1% 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% CCA15% CCA10% CCA15% CCA10% CCA15% CCA
14.064141092151974.645.063.913.7914
15.057132602702473.694.034.934.7815
16.050825813423142.923.196.236.0516
17.045320524303942.322.537.837.6017
18.040316245424971.842.019.909.6118
19.035912896846271.461.5912.512.119
20.032010248627911.161.2615.715.220
21.0285812.31087997.9201.0019.819.221
22.0253640.113781264.726.79225.124.422
23.0226510.817281585.580.63231.530.523
24.0201404.021842004.456.49839.838.624
25.0179320.427502524.363.39650.248.725
26.0159252.834983210.286.31263.661.726
27.0142201.643784018.228.24979.777.327
28.0126158.855545096.180.19610198.228
29.0113127.769156346.145.15812612229
30.0100100.088118085.113.12416115630
31.008979.211113410216.0896.097920319731
32.008064.001377712642.0726.079225124432
33.007150.4117488.16048.0572.062431931033
34.006339.692221420384.0449.049040539034
35.005631.362803525725.0355.038751349835
36.005025.003524432340.0283.030964362436
37.004520.254352139935.0229.025079477037
38.004016.005500250470.0181.0196100097538
39.003512.257209066150.0139.01511310128039
40.00319.6109184884280.0109.01191670162040

Copper Clad Aluminum and Other Clad Metals Data

Download Data Sheet