Stranded Tinned Copper Wire Dimensions

back to ALI 101


Gauge Stranding (Nom AWG) Minimum Ave. O.D. of Strand Approx. O.D.


in.         mm.		 ASTM (MIN) Circular Area
(mil)		 Resistance
(At 68° F)
Ohms per 1000 ft.
36 7/44 0.0019 0.006 0.153 25 414.8
34 7/42 0.0024 0.0075 0.191 39.7 260.9
32 7/40 0.0030 0.0093 0.203 64 164.1
32 19/44 0.0018 0.010 0.229 64 164.1
30 7/38 0.0038 0.012 0.305 100 112
30 19/42 0.0023 0.012 0.305 100 112
28 7/36 0.0048 0.015 0.381 159 70.7
28 19/40 0.0029 0.016 0.406 159 70.7
27 7/35 0.0054 0.017 0.457 202 55.6
26 7/34 0.0060 0.019 0.483 253 44.4
26 10/36 0.0050 0.021 0.553 253 44.4
26 19/38 0.0036 0.020 0.508 253 44.4
24 7/32 0.0076 0.024 0.610 404 27.7
24 10/34 0.0064 0.024 0.584 404 27.7
24 19/36 0.0046 0.024 0.610 404 27.7
24 42/40 0.0031 0.023 0.584 404 27.7
22 7/30 0.0096 0.030 0.762 640 17.5
22 19/34 0.0058 0.031 0.787 640 17.5
22 26/36 0.0050 0.030 0.762 640 17.5
20 7/28 0.0126 0.037 0.890 1020 10.9
20 10/30 0.0101 0.037 0.890 1020 10.9
20 19/32 0.0073 0.037 0.940 1020 10.9
20 26/34 0.0063 0.036 0.914 1020 10.9
20 42/36 0.0049 0.036 0.914 1020 10.9
18 7/26 0.0152 0.048 1.220 1620 6.92
18 16/30 0.0101 0.047 1.200 1620 6.92
18 19/30 0.0092 0.049 1.240 1620 6.92
18 42/34 0.0062 0.047 1.200 1620 6.92
18 65/36 0.0050 0.047 1.200 1620 6.92
16 7/24 0.0192 0.060 1.520 2580 4.35
16 19/29 0.0117 0.058 1.470 2580 4.35
16 26/30 0.0100 0.059 1.500 2580 4.35
16 65/34 0.0063 0.059 1.500 2580 4.35
16 105/36 0.0050 0.059 1.500 2580 4.35
14 7/22 0.0242 0.076 1.850 4110 2.73
14 19/26 0.0147 0.071 1.850 4110 2.73
14 42/30 0.0099 0.075 1.850 4110 2.73
14 105/34 0.0063 0.075 1.850 4110 2.73
12 7/20 0.0305 0.096 2.440 6530 1.71
12 19/25 0.0185 0.093 2.360 6530 1.71
12 65/30 0.0100 0.095 2.410 6530 1.71
12 165/34 0.0063 0.095 2.410 6530 1.71
10 37/26 0.0167 0.115 2.920 10380 1.08
10 65/28 0.0126 0.120 2.950 10380 1.08
10 105/30 0.0099 0.118 2.950 10380 1.08



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