Alloy 433 (Stainless Steel)

Composition Iron: 74%, Chromium: 18%, Nickel: 8%
Resistance 433 ohm-cir-mil/ft 0.0000720 ohm-cm
Maximum Recommended Operating Temperature 1112° F 600° C
Melting Point 2642° F 1450° C
Density ( @ 20.0° C/ 68.0° F) 0.286 lb/in³ 7.92 g/cc
Tensile Strength, Ultimate, Annealed 100000 psi 689 MPa
Tensile Strength, Ultimate, Hard Drawn 220000 psi 1517 MPa
Temperature Coefficient of Resistance 0.00085 –
Magnetic Properties None –

Amperage vs. Temperature*

AWG Dia. 100° C 200° C 300° C 400° C 500° C 600° C 700° C 800° C 900° C 1000° C
20 0.0320 5.79 9.13 11.18 12.84 14.36 15.79 17.32 18.98 21.19 24.69
21 0.0285 4.55 7.16 8.81 10.18 11.42 12.60 13.86 15.22 16.99 19.74
22 0.0253 3.54 5.58 6.91 8.03 9.04 10.03 11.06 12.17 13.59 15.73
23 0.0226 2.80 4.41 5.50 6.42 7.27 8.10 8.96 9.89 11.05 12.74
24 0.0201 2.20 3.46 4.34 5.12 5.83 6.52 7.24 8.02 8.96 10.28
25 0.0179 1.74 2.72 3.46 4.11 4.71 5.30 5.91 6.56 7.33 8.37
26 0.0159 1.37 2.15 2.75 3.30 3.81 4.32 4.84 5.38 6.02 6.84
27 0.0142 1.10 1.72 2.23 2.70 3.14 3.58 4.03 4.50 5.03 5.69
28 0.0126 0.88 1.37 1.80 2.21 2.59 2.97 3.36 3.77 4.21 4.74
29 0.0113 0.72 1.13 1.50 1.86 2.19 2.53 2.88 3.24 3.62 4.05
30 0.0100 0.59 0.92 1.24 1.55 1.85 2.15 2.46 2.77 3.10 3.45
31 0.0089 0.49 0.77 1.05 1.33 1.60 1.87 2.15 2.42 2.71 3.00
32 0.0080 0.43 0.67 0.92 1.17 1.42 1.66 1.92 2.17 2.43 2.68
33 0.0071 0.37 0.58 0.81 1.03 1.26 1.49 1.72 1.95 2.19 2.40
34 0.0063 0.33 0.52 0.72 0.93 1.14 1.35 1.57 1.78 2.00 2.19
35 0.0056 0.30 0.47 0.66 0.85 1.05 1.25 1.46 1.65 1.85 2.02
36 0.0050 0.28 0.44 0.62 0.80 0.99 1.17 1.37 1.55 1.74 1.90

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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 0.0252 0.0265 0.0279 44.183 23
9 0.1144 2.9058 0.0318 0.0335 0.0351 35.019 29
10 0.1019 2.5883 0.0401 0.0422 0.0443 27.784 36
11 0.0907 2.3038 0.0506 0.0532 0.0559 22.012 45
12 0.0808 2.0523 0.0637 0.0671 0.0704 17.469 57
13 0.0720 1.8288 0.0803 0.0845 0.0887 13.871 72
14 0.0641 1.6281 0.1013 0.1066 0.1119 10.994 91
15 0.0571 1.4503 0.1276 0.1343 0.1411 8.724 115
16 0.0508 1.2903 0.1612 0.1697 0.1782 6.905 145
17 0.0453 1.1506 0.2028 0.2134 0.2241 5.491 182
18 0.0403 1.0236 0.2562 0.2697 0.2832 4.346 230
19 0.0359 0.9119 0.3229 0.3398 0.3568 3.449 290
20 0.0320 0.8128 0.4063 0.4277 0.4491 2.740 365
21 0.0285 0.7239 0.5123 0.5392 0.5662 2.173 460
22 0.0253 0.6426 0.6501 0.6843 0.7185 1.713 584
23 0.0226 0.5740 0.8147 0.8575 0.9004 1.367 732
24 0.0201 0.5105 1.0299 1.0841 1.1383 1.081 925
25 0.0179 0.4547 1.2986 1.3670 1.4353 0.857 1166
26 0.0159 0.4039 1.6459 1.7325 1.8192 0.676 1478
27 0.0142 0.3607 2.0636 2.1722 2.2808 0.540 1853
28 0.0126 0.3200 2.6209 2.7589 2.8968 0.425 2354
29 0.0113 0.2870 3.2587 3.4302 3.6017 0.342 2927
30 0.0100 0.2540 4.1610 4.3800 4.5990 0.268 3737
31 0.0089 0.2261 5.2531 5.5296 5.8061 0.212 4718
32 0.0080 0.2032 6.5016 6.8438 7.1859 0.171 5839
33 0.0071 0.1803 8.2543 8.6888 9.1232 0.135 7414
34 0.0063 0.1600 10.4837 11.0355 11.5873 0.106 9416
35 0.0056 0.1422 13.2685 13.9668 14.6652 0.084 11917
36 0.0050 0.1270 16.1184 17.5200 18.9216 0.067 14949
37 0.0045 0.1143 19.8993 21.6296 23.3600 0.054 18455
38 0.0040 0.1016 25.1850 27.3750 29.5650 0.043 23358
39 0.0035 0.0889 32.8947 35.7551 38.6155 0.033 30508
40 0.0031 0.0787 41.9313 45.5775 49.2237 0.026 38889
41 0.0028 0.0711 51.3980 55.8673 60.3367 0.021 47668
42 0.0025 0.0635 64.4736 70.0800 75.6864 0.017 59795
43 0.0022 0.0559 83.2562 90.4959 97.7355 0.013 77215
44 0.0020 0.0508 100.7400 109.5000 118.2600 0.011 93430
45 0.00176 0.0447 127.2598 141.3998 155.5398 0.008 120648
46 0.00157 0.0399 159.9254 177.6948 195.4643 0.007 151617
47 0.00140 0.0356 201.1224 223.4694 245.8163 0.005 190673
48 0.00124 0.0315 256.3736 284.8595 313.3455 0.004 243054
49 0.00111 0.0282 319.9416 355.4906 391.0397 0.003 303320
50 0.00099 0.0251 402.2039 446.8932 491.5825 0.003 381308

*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