C102/C110 Copper Conductor Wire

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Copper is the “standard” metal used for electrical conductors. Copper has extremely high electrical conductivity, surpassed only by pure silver and it has excellent tensile, solderability and corrosion characteristics.

C102 is an oxygen free (OF) copper that has better drawing and resistance to hydrogen embrittlement than C110 (ETP). OF copper contains less dissolved oxygen than ETP, which gives OF its performance advantage. In most applications, ETP is an acceptable conductor material and is more economical than OF copper.

Both OF and ETP copper conductors are available bare or plated with silver, nickel or tin. 

English UnitsMetric Units

Physical Properties

Soft
Tensile 32 ksi
Elongation 10 - 20%
Electrical Conductivity 100% IACS* @ 68°F
Electrical Resistivity 10.37 cir mil ohm/ft @ 68°F
Melting Point 1981°F
Density 0.323 lbs/in³
Thermal Coefficient of Resistance 0.00218 Per °F

19-Strand Unilay Constructions

Nickel Plated Copper - Soft (50 micro-inch nickel thickness)
AWG Const Diameter (inch) Resist
(Ω/mft)		 Weight
(lb/mft)
Min Max Max Max
18 19/30 0.0462 0.0480 5.97 5.94
20 19/32 0.0368 0.0387 9.52 3.86
22 19/34 0.0289 0.307 15.4 2.43
24 19/36 0.0228 0.0247 24.7 1.57
26 19/38 0.0182 0.0200 40.0 1.037
28 19/40 0.0140 0.0159 67.5 0.648
Silver Plated Copper - Soft (40 micro-inch silver thickness)
AWG  Const  Diameter (inch) Resist 
(Ω/mft)		 Weight
(lb/mft)
Min Max Max Max
18 19/30 0.0462 0.0471 5.79 5.73
20 19/32 0.0368 0.0377 9.19 3.69
22 19/34 0.0289 0.0298 15.0 2.32
24 19/36 0.0228 0.0238 23.9 1.46
26 19/38 0.0182 0.0191 37.7 0.948
28 19/40 0.0140 0.0149 63.7 0.578
30 19/42 0.0112 0.0121 99.0 0.381
32 19/44(1) 0.0094 0.0104 154.2 0.257
(1) True Concentric

7-Strand Constructions 

Nickel Plated Copper - Soft (50 micro-inch nickel thickness)
AWG  Const  Diameter (inch) Resist
(Ω/mft)		 Weight
(lb/mft)
Min Max Max Max
22 7/30 0.0293 0.0350 15.8 2.19
24 7/32 0.0234 0.0243 25.0 1.41
26 7/34 0.0183 0.0193 40.7 0.884
28 7/36 0.0145 0.0154 65.1 0.566
30 7/38 0.0115 0.0124 105.0 0.368
32 7/40 0.00828 0.00947 204.0 0.214
Silver Plated Copper - Soft (40 micro-inch silver thickness)
AWG  Const  Diameter (inch) Resist
(Ω/mft)		 Weight
(lb/mft)
Min Max Max Max
22 7/30 0.0293 0.0300 15.5 2.15
24 7/32 0.0234 0.0241 24.2 1.38
26 7/34 0.0183 0.019 39.4 0.861
28 7/36 0.0145 0.0151 63.0 0.547
30 7/38 0.0115 0.0122 99.0 0.353
32 7/40 0.00887 0.0095 168.0 0.216
34 7/42 0.0071 0.00772 262.0 0.143
36 7/44 0.00562 0.00624 420.0 0.0943
38 7/46 0.00435 0.00496 696.0 0.0594

Single End Construction

Nickel Plated Copper - Soft (50 micro-inch nickel thickness)
AWG STD
Plate
%		 Diameter (inch) Resist
(Ω/mft)		 Weight
(lb/mft)		 Length
(ft/lb)
Nom Min Max Max Max Nom
30 2 0.0101 0.0099 0.0103 110.2 0.321 3,304
31 4 0.0090 0.0088 0.0092 142.5 0.256 4,171
32 4 0.0081 0.0079 0.0083 176.8 0.208 5,162
33 4 0.0071 0.0069 0.0073 231.7 0.161 6,742
34 4 0.0064 0.0062 0.0066 287.0 0.132 8,324
35 4 0.0057 0.0055 0.0059 364.7 0.105 10,534
36 4 0.0051 0.0049 0.0053 459.5 0.0850 13,214
37 7 0.0046 0.0044 0.0048 588.7 0.0697 16,314
38 7 0.0041 0.0039 0.0043 749.3 0.0560 20,648
39 7 0.0036 0.0034 0.0038 985.9 0.0437 26,968
40 7 0.0032 0.0030 0.0034 1,266 0.0350 34,377
Silver Plated Copper - Soft (40 micro-inch silver thickness)
AWG STD
Plate
%		 Diameter (inch) Resist
(Ω/mft)		 Weight
(lb/mft)		 Length
(ft/lb)
Nom Min Max Max Max Nom
30 2 0.0100 0.0099 0.0101 105.8 0.310 3,293
31 2.5 0.0089 0.0088 0.0090 133.9 0.246 4,155
32 2.5 0.0080 0.0079 0.0081 166.2 0.199 5,142
33 3 0.0070 0.0069 0.0071 217.8 0.153 6,711
34 3 0.0063 0.0062 0.0064 269.8 0.125 8,285
35 4 0.0056 0.0055 0.0057 342.8 0.0990 10,470
36 4 0.0050 0.0049 0.0051 431.9 0.0792 13,133
37 5 0.0045 0.0044 0.0046 535.7 0.0645 16,189
38 5 0.0040 0.0039 0.0041 681.9 0.0513 20,489
39 6.1 0.0035 0.0034 0.0036 897.1 0.0396 26,716
40 6.1 0.0031 0.0030 0.0032 1,152 0.0313 34,055
41 8 0.0028 0.0027 0.0029 1,423 0.0258 41,621
42 8 0.0025 0.0024 0.0026 1,801 0.0207 52,209
43 10 0.0022 0.0021 0.0023 2,352 0.0163 67,210
44 10 0.0020 0.0019 0.0021 2,873 0.0136 81,324
45(1) 10(2) 0.00178 0.00166 0.00190 3,764 0.0107 104,688
46(1) 10(2) 0.00157 0.00147 0.00167 4,799 0.0086 131,560
47(1) 10(2) 0.00140 0.00130 0.00150 6,232 0.0069 167,052
48(1) 10(2) 0.00124 0.00114 0.00134 7,980 0.0056 209,913
49(1) 10(2) 0.00111 0.00101 0.00121 10,167 0.0045 261,961
50(1) 10(2) 0.00099 0.00089 0.00109 13,212 0.0037 331,993
(1) These single end sizes will be hard temper
(2) These single end sizes will not have 40 micro-inches of silver 

For a full size version of product specifications, including chemical composition in both US and Metric units, please download the PDF.