Thermocouple Wire Weights & Resistances
Ohms per foot at 70°C
Stated footages are in pounds
| Gauge | 8 | 14 | 16 | 20 | 24 | 28 | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| B&S Diameter | .128 | .064 | .051 | .032 | .020 | .012 | ||||||
| Conductor | RES | FT | RES | FT | RES | FT | RES | FT | RES | FT | RES | FT |
| Copper | .0006 | 20 | .003 | 80 | .004 | 127 | .010 | 322 | .026 | 816 | .065 | 2076 |
| Iron | .004 | 22 | .015 | 91 | .003 | 145 | .059 | 365 | .149 | 926 | .376 | 2356 |
| Constantan | .018 | 20 | .072 | 81 | .114 | 128 | .291 | 324 | .725 | 821 | 1.85 | 2990 |
| Chromel | .026 | 20 | .104 | 82 | .165 | 130 | .415 | 329 | 1.05 | 834 | 2.70 | 2121 |
| Alumel | .011 | 20 | .043 | 83 | .069 | 132 | .113 | 334 | .438 | 846 | 1.11 | 2153 |
| No. 11 Alloy | .002 | 20 | .007 | 80 | .010 | 125 | .027 | 322 | .070 | 815 | .175 | 2075 |