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Copper Clad Aluminum and Other Clad Metals


     

Typical Physical Properties

Clad metals are two distinct metals or alloys that are metallurgically bonded together so that the optimum combination of functional properties is achieved. Copper Clad Aluminum (CCA) is an electrical conductor with a sleeve of copper bonded to a solid aluminum core. The composite wire is uniquely suited to the electrical applications where weight to 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 availible on CCA. 10% CCA 15% CCA
DC Conductivity 8 - 12% min IACS 64.4% min IACS
% Copper by Volume 62.9% 13 - 17%
% Copper by Weight 27% nominal 34% nominal
Density .120 ib/cu in .131 ib/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)

Copper Clad Aluminum

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

Other Clad Metals

WIRE CORE / CLADDING % IACS KEY ATTRIBUTES TYPICAL APPLICATIONS
CCS 30% Low Carbon Steel / Copper 30% High Strength,
medium conductivity
Drop Wire,
grounding conductor
CCS 40% Low Carbon Steel / Copper 40% High Strength,
medium conductivity
High strength conductors,
electronic wire leads
NCC 27% Copperl / Pure Nickle 70% nom. Combines high conductivity &
oxidation resistance at
elevated temperatures
High temperature electrical conductors,
Lead wiore to heating elements
DUMET Nickel-Iron Alloy / Copper Approx. 17% Thermal expansion equal to,
that of glass
Electronic lead wires

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Headquartered in Westlake Village, California USA, MWS inventories more than 50,000
Magnet and Specialty wires along with production facilities for drawing, shaping, serving,
twisting and insulating of wire for high-technology users worldwide.

Established in 1968