Alloy 30

Composition Copper: 98%, Nickel: 2%
Resistance 30 ohm-cir-mil/ft 0.00000499 ohm-cm
Maximum Recommended Operating Temperature 392° F 200° C
Melting Point 1994° F 1090° C
Density ( @ 20.0° C/ 68.0° F) 0.321 lb/in³ 8.89 g/cc
Tensile Strength, Ultimate, Annealed 30000 psi 207 MPa
Tensile Strength, Ultimate, Hard Drawn 60000 psi 414 MPa
Temperature Coefficient of Resistance 0.00130 –
Magnetic Properties None –

Amperage vs. Temperature*

AWG Dia. 100° C 200° C 300° C 400° C 500° C 600° C 700° C
20 0.0320 19.68 27.42 32.61 36.91 40.84 43.99 47.40
21 0.0285 15.64 22.07 26.48 30.15 33.46 36.23 39.16
22 0.0253 12.38 17.71 21.44 24.56 27.36 29.79 32.30
23 0.0226 9.95 14.42 17.61 20.30 22.69 24.84 27.01
24 0.0201 7.95 11.69 14.42 16.72 18.76 20.64 22.52
25 0.0179 6.40 9.54 11.88 13.86 15.61 17.27 18.89
26 0.0159 5.15 7.80 9.80 11.50 13.00 14.45 15.85
27 0.0142 4.22 6.47 8.20 9.67 10.97 12.25 13.47
28 0.0126 3.44 5.35 6.83 8.10 9.22 10.33 11.39
29 0.0113 2.89 4.53 5.82 6.93 7.91 8.89 9.82
30 0.0100 2.40 3.80 4.90 5.85 6.70 7.55 8.35
31 0.0089 2.04 3.24 4.19 5.01 5.76 6.50 7.19
32 0.0080 1.78 2.83 3.66 4.38 5.04 5.69 6.30
33 0.0071 1.55 2.46 3.17 3.79 4.37 4.93 5.46
34 0.0063 1.38 2.16 2.77 3.31 3.82 4.30 4.76
35 0.0056 1.25 1.93 2.45 2.92 3.36 3.77 4.18
36 0.0050 1.15 1.75 2.20 2.60 3.00 3.35 3.70

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Diameter and Resistance

Diameter Resistance (Ohms/ft.)
AWG in. mm Min. Nom. Max. LB/KFT FT/LB
8 0.1285 3.2639 0.0017 0.0018 0.0019 50.078 20
9 0.1144 2.9058 0.0022 0.0023 0.0024 39.691 25
10 0.1019 2.5883 0.0027 0.0029 0.0030 31.491 32
11 0.0907 2.3038 0.0035 0.0036 0.0038 24.949 40
12 0.0808 2.0523 0.0044 0.0046 0.0048 19.800 51
13 0.0720 1.8288 0.0055 0.0058 0.0061 15.722 64
14 0.0641 1.6281 0.0069 0.0073 0.0077 12.461 80
15 0.0571 1.4503 0.0087 0.0092 0.0097 9.888 101
16 0.0508 1.2903 0.0110 0.0116 0.0122 7.827 128
17 0.0453 1.1506 0.0139 0.0146 0.0154 6.224 161
18 0.0403 1.0236 0.0175 0.0185 0.0194 4.926 203
19 0.0359 0.9119 0.0221 0.0233 0.0244 3.909 256
20 0.0320 0.8128 0.0278 0.0293 0.0308 3.106 322
21 0.0285 0.7239 0.0351 0.0369 0.0388 2.463 406
22 0.0253 0.6426 0.0445 0.0469 0.0492 1.941 515
23 0.0226 0.5740 0.0558 0.0587 0.0617 1.549 646
24 0.0201 0.5105 0.0705 0.0743 0.0780 1.225 816
25 0.0179 0.4547 0.0889 0.0936 0.0983 0.972 1029
26 0.0159 0.4039 0.1127 0.1187 0.1246 0.767 1304
27 0.0142 0.3607 0.1413 0.1488 0.1562 0.612 1635
28 0.0126 0.3200 0.1795 0.1890 0.1984 0.481 2077
29 0.0113 0.2870 0.2232 0.2349 0.2467 0.387 2582
30 0.0100 0.2540 0.2850 0.3000 0.3150 0.303 3297
31 0.0089 0.2261 0.3598 0.3787 0.3977 0.240 4163
32 0.0080 0.2032 0.4453 0.4688 0.4922 0.194 5152
33 0.0071 0.1803 0.5654 0.5951 0.6249 0.153 6541
34 0.0063 0.1600 0.7181 0.7559 0.7937 0.120 8308
35 0.0056 0.1422 0.9088 0.9566 1.0045 0.095 10514
36 0.0050 0.1270 1.1040 1.2000 1.2960 0.076 13189
37 0.0045 0.1143 1.3630 1.4815 1.6000 0.061 16283
38 0.0040 0.1016 1.7250 1.8750 2.0250 0.049 20608
39 0.0035 0.0889 2.2531 2.4490 2.6449 0.037 26917
40 0.0031 0.0787 2.8720 3.1217 3.3715 0.029 34311
41 0.0028 0.0711 3.5204 3.8265 4.1327 0.024 42057
42 0.0025 0.0635 4.4160 4.8000 5.1840 0.019 52757
43 0.0022 0.0559 5.7025 6.1983 6.6942 0.015 68126
44 0.0020 0.0508 6.9000 7.5000 8.1000 0.012 82432
45 0.00176 0.0447 8.7164 9.6849 10.6534 0.009 106446
46 0.00157 0.0399 10.9538 12.1709 13.3880 0.007 133769
47 0.00140 0.0356 13.7755 15.3061 16.8367 0.006 168229
48 0.00124 0.0315 17.5598 19.5109 21.4620 0.005 214443
49 0.00111 0.0282 21.9138 24.3487 26.7835 0.004 267615
50 0.00099 0.0251 27.5482 30.6091 33.6700 0.003 336423

*Data was recorded from an experiment conducted in a controlled environment. Straight uninsulated wire was heated inside a closed container to limit heat loss due to convection. Thermal imaging camera was used to measure wire temperatures. Your results may vary. Pelican Wire Company (PWC) experimental data is provided strictly “as is” without any other warranty or guaranty of any kind. PWC shall not be liable for any indirect, special, incidental, consequential or punitive loss or damage of any kind, including but not limited to lost profits (regardless of whether or not PWC knows or should know of the possibility of such loss or damages). Any users of this product shall hold harmless and indemnify PWC against any and all loss, damage, injury, liability and claims for injury or death of any person. Back to top   Order Online Get a Quote