NiChrome 80 Cold Daw wire Dia. 8.0mm-0.05mm, Electric Resistivity: 1.09×10-6Ω.m at 20oC, cm2/Ω= (W is Surface area loading)

How to get Electric Resistivity at Operating Temperature?

Ct = Temperature-Resistance Factor
Rt = Electric Resistivity at operating temperature
R = Electric Resistivity at 20oC

Rt=R×Ct

20 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400
Ct 1.00 1.01 1.02 1.03 1.04 1.05 1.04 1.04 1.04 1.04 1.05 1.06 1.07    

Data table of  NiChrome 80 Cold Draw Wire

Dia.
mm
(20℃)
Ω/m
(20℃)
cm2/Ω
g/m cm2/m mm2 Dia.
mm
8.00 0.0217 11600 417 251 50.3 8.00
7.5 0.024 9550 367 236 44.2 7.50
7.00 0.0283 7760 319 220 28.5 7.00
6.50 0.0328 6220 275 204 33.2 6.50
6.00 0.0386 4890 235 188 28.3 6.00
5.50 0.0459 3770 197 173 23.8 5.50
5.00 0.0555 2830 163 157 19.6 5.00
4.80 0.0602 2500 150 151 18.1 4.80
4.50 0.0685 2060 132 141 15.9 4.50
4.20 0.0787 1860 115 132 13.9 4.20
4.00 0.0867 1450 104 126 12.6 4.00
3.80 0.0961 1240 94.1 119 11.3 3.80
3.50 0.113 971 39.9 110 9.62 3.50
3.20 0.136 742 66.8 101 8.04 3.20
3.00 0.154 611 58.7 94.2 7.07 3.00
2.80 0.177 497 51.1 88.0 6.16 2.80
2.50 0.222 354 40.7 78.5 4.91 2.50
2.20 0.287 241 31.6 69.1 3.80 2.20
2.00 0.347 181 26.1 62.8 3.14 2.00
1.90 0.384 155 23.5 59.7 2.84 1.90
1.80 0.428 132 21.1 56.5 2.54 1.80
1.70 0.480 111 18.8 53.4 2.27 1.70
1.60 0.542 92.7 16.7 50.3 2.01 1.60
1.50 0.617 76.4 14.7 47.1 1.77 1.50
1.40 0.708 62.1 12.8 44.0 1.54 1.40
1.30 0.821 49.7 11.0 40.8 1.33 1.30
1.20 0.964 39.1 9.39 37.7 1.13 1.20
1.10 1.15 30.1 7.89 34.6 0.950 1.10
1.00 1.39 22.6 6.52 31.4 0.785 1.00
0.95 1.54 19.4 5.88 29.8 0.709 0.95
0.90 1.71 16.5 5.28 28.3 0.636 0.90
0.85 1.92 13.9 4.71 26.7 0.567 0.85
0.80 2.17 11.6 4.17 25.1 0.503 0.80
0.75 2.47 9.55 3.67 23.6 0.442 0.75
0.70 2.83 7.76 3.19 22.0 0.385 0.70
Dia.
mm
(20℃)
Ω/m
(20℃)
cm2/Ω
g/m cm2/m mm2 Dia.
mm
0.65 3.28 6.22 2.75 20.4 0.332 0.65
0.60 3.86 4.89 2.35 18.8 0.283 0.60
0.55 4.59 3.77 1.97 17.3 0.238 0.55
0.50 5.55 2.83 1.63 15.7 0.196 0.50
0.48 6.02 2.50 1.50 15.1 0.181 0.48
0.45 6.85 2.06 1.32 14.1 0.159 0.45
0.42 7.87 1.68 1.15 13.2 0.139 0.42
0.40 8.67 1.45 1.04 12.6 0.126 0.40
0.38 9.61 1.24 0.941 11.9 0.113 0.38
0.35 11.3 0.971 0.799 11.0 0.0962 0.35
0.32 13.6 0.742 0.668 10.1 0.0804 0.32
0.30 15.4 0.611 0.587 9.42 0.0707 0.30
0.28 17.7 0.497 0.511 8.80 0.0616 0.28
0.26 20.5 0.398 0.441 8.17 0.0531 0.26
0.25 22.2 0.354 0.407 7.85 0.0491 0.25
0.24 24.1 0.313 0.375 7.54 0.0452 0.24
0.23 26.2 0.275 0.345 7.23 0.0415 0.23
0.22 28.7 0.241 0.316 6.91 0.0380 0.22
0.21 31.0 0.210 0.287 6.60 0.0346 0.21
0.20 34.7 0.181 0.261 6.28 0.0314 0.20
0.19 38.4 0.155 0.235 5.97 0.0284 0.19
0.18 42.8 0.132 0.211 5.65 0.0254 0.18
0.17 48.0 0.111 0.188 5.34 0.0227 0.17
0.16 54.2 0.0927 0.167 5.03 0.0201 0.16
0.15 61.7 0.0764 0.147 4.71 0.0177 0.15
0.14 70.8 0.0621 0.128 4.40 0.0154 0.14
0.13 82.1 0.0497 0.110 4.08 0.0133 0.13
0.12 96.4 0.0391 0.0939 3.77 0.0113 0.12
0.11 115 0.0301 0.0789 3.46 0.00950 0.11
0.10 139 0.0226 0.0652 3.14 0.00785 0.10
0.09 171 0.0165 0.0528 2.83 0.00636 0.09
0.08 217 0.0116 0.0417 2.51 0.00503 0.08
0.07 283 0.00776 0.0319 2.20 0.00385 0.07
0.06 386 0.00489 0.0235 1.88 0.00283 0.06
0.05 555 0.00283 0.0163 1.57 0.00196 0.05