Datasheet

Kanthal Appliance Alloys Handbook. 63
9
NIFETHAL 70 Cross
Dia- Resistance Surface sectional
meter at 20 °Ccm
2
/Ω
1)
Weight area area
mm Ω/m at 20 °C g/m cm
2
/m mm
2
1.8 0.0786 719 21.5 56.5 2.54
1.7 0.0881 606 19.2 53.4 2.27
1.6 0.0995 505 17.0 50.3 2.01
1.5 0.113 416 14.9 47.1 1.77
1.4 0.130 339 13.0 44.0 1.54
1.3 0.151 271 11.2 40.8 1.33
1.2 0.177 213 9.56 37.7 1.13
1.1 0.210 164 8.03 34.6 0.950
1.0 0.255 123 6.64 31.4 0.785
0.95 0.282 106 5.99 29.8 0.709
0.90 0.314 89.9 5.38 28.3 0.636
0.85 0.352 75.8 4.79 26.7 0.567
0.80 0.398 63.2 4.25 25.1 0.503
0.75 0.453 52.0 3.73 23.6 0.442
0.70 0.520 42.3 3.25 22.0 0.385
0.65 0.603 33.9 2.80 20.4 0.332
0.60 0.707 26.6 2.39 18.8 0.283
0.55 0.842 20.5 2.01 17.3 0.238
0.50 1.02 15.4 1.66 15.7 0.196
0.475 1.13 13.2 1.50 14.9 0.177
0.45 1.26 11.2 1.34 14.1 0.159
0.425 1.41 9.47 1.20 13.4 0.142
0.40 1.59 7.90 1.06 12.6 0.126
0.375 1.81 6.51 0.933 11.8 0.110
0.35 2.08 5.29 0.813 11.0 0.0962
0.32 2.49 4.04 0.680 10.1 0.0804
0.30 2.83 3.33 0.597 9.42 0.0707
0.28 3.25 2.71 0.520 8.80 0.0616
0.26 3.77 2.17 0.449 8.17 0.0531
0.25 4.07 1.93 0.415 7.85 0.0491
0.24 4.42 1.71 0.382 7.54 0.0452
0.23 4.81 1.50 0.351 7.23 0.0415
0.22 5.26 1.31 0.321 6.91 0.0380
0.21 5.77 1.14 0.293 6.60 0.0346
0.20 6.37 0.987 0.265 6.28 0.0314
0.19 7.05 0.846 0.240 5.97 0.0284
0.18 7.86 0.719 0.215 5.65 0.0254
0.17 8.81 0.606 0.192 5.34 0.0227
0.16 9.95 0.505 0.170 5.03 0.0201
0.15 11.3 0.416 0.149 4.71 0.0177
0.14 13.0 0.339 0.130 4.40 0.0154
0.13 15.1 0.271 0.112 4.08 0.0133
0.12 17.7 0.213 0.0956 3.77 0.0113
0.11 21.0 0.164 0.0803 3.46 0.00950
0.10 25.5 0.123 0.0664 3.14 0.00785
°C 20 100 150 200 250 300 350 400 450 500
NIFETHAL 70 C
t
1.00 1.42 1.68 1.91 2.19 2.47 2.75 3.03 3.34 3.66
NIFETHAL 52 C
t
1.00 1.33 1.53 1.73 1.93 2.13 2.32 2.49 2.64 2.77
To obtain resistance at working temperature, multiply by the factor C
t
in the following table:
NIFETHAL 70 and 52
Wire
NIFETHAL 52 Cross
Dia- Resistance Surface sectional
meter at 20 °Ccm
2
/Ω
1)
Weight area area
mm Ω/m at 20 °C g/m cm
2
/m mm
2
Diameter range Resistivity Density
Alloy mm Ωmm
2
m
-1
gcm
-3
NIFETHAL 70 4.0-0.10 0.20 8.45
NIFETHAL 52 4.0-0.10 0.43 8.20
1)
cm
2
/Ω = I
2
· C
t
/p (I = Current, C
t
= temperature factor, p = surface load W/cm
2
)
1.8 0.169 335 20.9 56.5 2.54
1.7 0.189 282 18.6 53.4 2.27
1.6 0.214 235 16.5 50.3 2.01
1.5 0.243 194 14.5 47.1 1.77
1.4 0.279 157 12.6 44.0 1.54
1.3 0.324 126 10.9 40.8 1.33
1.2 0.380 99.2 9.27 37.7 1.13
1.1 0.452 76.4 7.79 34.6 0.950
1.0 0.547 57.4 6.44 31.4 0.785
0.95 0.607 49.2 5.81 29.8 0.709
0.90 0.676 41.8 5.22 28.3 0.636
0.85 0.758 35.2 4.65 26.7 0.567
0.80 0.855 29.4 4.12 25.1 0.503
0.75 0.973 24.2 3.62 23.6 0.442
0.70 1.12 19.7 3.16 22.0 0.385
0.65 1.30 15.8 2.72 20.4 0.332
0.60 1.52 12.4 2.32 18.8 0.283
0.55 1.81 9.55 1.95 17.3 0.238
0.50 2.19 7.17 1.61 15.7 0.196
0.475 2.43 6.15 1.45 14.9 0.177
0.45 2.70 5.23 1.30 14.1 0.159
0.425 3.03 4.40 1.16 13.4 0.142
0.40 3.42 3.67 1.030 12.6 0.126
0.375 3.89 3.03 0.906 11.8 0.110
0.35 4.47 2.46 0.789 11.0 0.0962
0.32 5.35 1.88 0.659 10.1 0.0804
0.30 6.08 1.55 0.580 9.42 0.0707
0.28 6.98 1.26 0.505 8.80 0.0616
0.26 8.10 1.01 0.435 8.17 0.0531
0.25 8.76 0.897 0.403 7.85 0.0491
0.24 9.51 0.793 0.371 7.54 0.0452
0.23 10.3 0.698 0.341 7.23 0.0415
0.22 11.3 0.611 0.312 6.91 0.0380
0.21 12.4 0.531 0.284 6.60 0.0346
0.20 13.7 0.459 0.258 6.28 0.0314
0.19 15.2 0.394 0.232 5.97 0.0284
0.18 16.9 0.335 0.209 5.65 0.0254
0.17 18.9 0.282 0.186 5.34 0.0227
0.16 21.4 0.235 0.165 5.03 0.0201
0.15 24.3 0.194 0.145 4.71 0.0177
0.14 27.9 0.157 0.126 4.40 0.0154
0.13 32.4 0.126 0.1088 4.08 0.0133
0.12 38.0 0.0992 0.0927 3.77 0.0113
0.11 45.2 0.0764 0.0779 3.46 0.00950
0.10 54.7 0.0574 0.0644 3.14 0.00785