Table - resistivity of nichrome tape
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Resistivity
Ni-Cr alloys with low iron content have the following temperature dependence of resistance: nichrome X20H80 shows a decrease in the value of the resistivity in the range from 500 to 900 ° C; and the specific resistance of the brand Nikrothal 80 does not depend on the temperature in the interval 400… 900 ° С.
| Temperature, ° C | X15N60 | X20H80-H | Nikrothal 80 |
|---|---|---|---|
| 20 | 1.12 | 1.13 | 1.09 |
| 100 | 1.135 | 1.137 | 1,101 |
| 200 | 1,152 | 1.147 | 1,112 |
| 300 | 1,172 | 1,155 | 1.123 |
| 400 | 1.189 | 1,163 | 1.134 |
| 500 | 1.203 | 1.166 | 1.134 |
| 600 | 1,213 | 1.156 | 1.134 |
| 700 | 1,213 | 1,148 | 1,1340 |
| 800 | 1.22 | 1.147 | 1,1340 |
| 900 | 1.292 | 1.149 | 1,1340 |
| 1000 | 1.238 | 1,158 | 1.145 |
| 1100 | 1.248 | 1,167 | 1,155 |
| 1200 | - | 1,175 | 1.166 |
The melting point of nichrome is 1400 ° C. Ferronochrome X15N60 has a slightly lower melting point. The maximum operating temperature of the alloys considered is 1125… 1200 ° C.
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