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Copper Clad Steel Wire

Copper clad steel wire (CCS) combines the high tensile strength of steel as its core and the conductivity properties of copper as its outer layer. The core material is usually low carbon steel and is typically used as either grounding wire or the inner conductor of coaxial cables. Copper clad steel is made to ASTM B-452 standards with 40% conductivity in two tempers: soft and hard drawn.

The steel core alloy can theoretically be any grade suitable for the wire’s end purpose. Copper clad stainless steel (CCSS), in the 300 series as core, may be specified for certain medical applications.

Copper clad steel wire can be produced bare or electroplated with gold, silver, tin, solder, and nickel. Enamel insulations are also an option. See the magnet wire insulation guide for film selections.

Applications of Copper Clad Steel

Medical

Intracardiac ablation catheters, neuro-interventional products, atherectomy systems

Power supplies and conversion

Wireless, heavy duty, and custom

Hardware

Special and nautical applications, torsion springs

Motors and magnetic assemblies

Agriculture, aerospace, oil & gas and other heavy duty applications

Specialty resistors and capacitors

Wireless power transfer systems using inductive coupling through magnetic field

Intelligent pressure and temperature measuring instrumentation

Flowmeters, differential pressure transmitters, thermometers, thermocouples

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Copper Clad Steel (40%) Typical Physical and Electrical Properties

IACS DC Conductivity – 40%
% Copper by thickness – 10%
Density – 0.2975 lbs/in3 @ 68°F (8.21 g/cm3 @ 20°C)
Annealed/Soft TemperHard Drawn
Tensile Strength50 kPSI110 kPSI
Elongation10%1%
CCS Advantagemaximum plasticitymaximum strength
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

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