Categories: Heating materials , Resistance materials

Content:
Kanthal® A, Kanthal® AF and Kanthal® AE
Kanthal® D
Alkrothal®
Nikrothal® 80, Nikrothal® 60 and Nikrothal® 40
Cuprothal® 49

Kanthal® A, Kanthal® AF and Kanthal® AE

Ribbon dimensions and properties

Resistivity 1.39 Ω mm2/m (836 Ω/cmf). Density 7.15 g /cm3 (0.258 lb/in3).

To obtain resistance at working temperature, multiply by the factor Ct in the following table.

°C 20 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300
Ct 1.00 1.00 1.01 1.01 1.02 1.03 1.04 1.04 1.05 1.05 1.06 1.06 1.06 1.06
Width Thickness Resistance at 20°C Surface area per Ω Weight Surface area Cross sectional area
mm mm Ω/m cm2/Ω* g/m cm2/m mm2
4 0.50 0.755 119 13.2 90.0 1.84
0.40 0.944 93.2 10.5 88.0 1.47
0.30 1.26 68.3 7.89 86.0 1.10
0.20 1.89 44.5 5.26 84.0 0.736
0.15 2.52 33.0 3.95 83.0 0.552
0.10 3.78 21.7 2.63 82.0 0.368
3 1.0 0.504 159 19.7 80.0 2.76
0.90 0.560 139 17.8 78.0 2.48
0.80 0.630 121 15.8 76.0 2.21
0.70 0.719 103 13.8 74.0 1.93
0.60 0.839 85.8 11.8 72.0 1.66
0.50 1.01 69.5 9.87 70.0 1.38
0.40 1.26 54.0 7.89 68.0 1.10
0.30 1.68 39.3 5.92 66.0 0.828
0.20 2.52 25.4 3.95 64.0 0.552
0.15 3.36 18.8 2.96 63.0 0.414
0.10 5.04 12.3 1.97 62.0 0.276
2.5 1.0 0.604 116 16.4 70.0 2.30
0.90 0.671 101 14.8 68.0 2.07
0.80 0.755 87.4 13.2 66.0 1.84
0.70 0.863 74.1 11.5 64.0 1.61
0.60 1.01 61.6 9.87 62.0 1.38
0.50 1.21 49.6 8.22 60.0 1.15
0.40 1.51 38.4 6.58 58.0 0.920
0.30 2.01 27.8 4.93 56.0 0.690
0.20 3.02 17.9 3.29 54.0 0.460
0.15 4.03 13.2 2.47 53.0 0.345
0.10 6.04 8.60 1.64 52.0 0.230
2.0 0.80 0.944 59.3 10.5 56.0 1.47
0.70 1.08 50.0 9.21 54.0 1.29
0.60 1.26 41.3 7.89 52.0 1.10
0.50 1.51 33.1 6.58 50.0 0.920
0.40 1.89 25.4 5.26 48.0 0.736
0.30 2.52 18.3 3.95 46.0 0.552
0.20 3.78 11.6 2.63 44.0 0.368
0.15 5.04 8.54 1.97 43.0 0.276
0.10 7.55 5.56 1.32 42.0 0.184
1.8 0.80 1.05 49.6 9.47 52.0 1.32
0.70 1.20 41.7 8.29 50.0 1.16
0.60 1.40 34.3 7.10 48.0 0.994
0.50 1.68 27.4 5.92 46.0 0.828
0.40 2.10 21.0 4.74 44.0 0.662
0.30 2.80 15.0 3.55 42.0 0.497
0.20 4.20 9.53 2.37 40.0 0.331
0.15 5.60 6.97 1.78 39.0 0.248
0.10 8.39 4.53 1.18 38.0 0.166
1.5 0.80 1.26 36.5 7.89 46.0 1.10
0.70 1.44 30.6 6.91 44.0 0.966
0.60 1.68 25.0 5.92 42.0 0.828
0.50 2.01 19.9 4.93 40.0 0.690
0.40 2.52 15.1 3.95 38.0 0.552
0.30 3.36 10.7 2.96 36.0 0.414
0.20 5.04 6.75 1.97 34.0 0.276
0.15 6.71 4.91 1.48 33.0 0.207
0.10 10.1 3.18 0.987 32.0 0.138
0.090 11.2 2.84 0.888 31.8 0.124
0.080 12.6 2.51 0.789 31.6 0.110
1.2 0.80 1.57 25.4 6.31 40.0 0.883
0.70 1.80 21.1 5.53 38.0 0.773
0.60 2.10 17.2 4.74 36.0 0.662
0.50 2.52 13.5 3.95 34.0 0.552
0.40 3.15 10.2 3.16 32.0 0.442
0.30 4.20 7.15 2.37 30.0 0.331
0.20 6.30 4.45 1.58 28.0 0.221
0.15 8.39 3.22 1.18 27.0 0.166
0.10 12.6 2.07 0.789 26.0 0.110
0.090 14.0 1.84 0.710 25.8 0.0994
0.080 15.7 1.63 0.631 25.6 0.0883
1.0 0.60 2.52 12.7 3.95 32.0 0.552
0.50 3.02 9.93 3.29 30.0 0.460
0.40 3.78 7.41 2.63 28.0 0.368
0.30 5.04 5.16 1.97 26.0 0.276
0.20 7.55 3.18 1.32 24.0 0.184
0.15 10.1 2.28 0.987 23.0 0.138
0.10 15.1 1.46 0.658 22.0 0.0920
0.090 16.8 1.30 0.592 21.8 0.0828
0.080 18.9 1.14 0.526 21.6 0.0736
0.9 0.50 3.36 8.34 2.96 28.0 0.414
0.40 4.20 6.20 2.37 26.0 0.331
0.30 5.60 4.29 1.78 24.0 0.248
0.20 8.39 2.62 1.18 22.0 0.166
0.15 11.2 1.88 0.888 21.0 0.124
0.10 16.8 1.19 0.592 20.0 0.0828
0.090 18.7 1.06 0.533 19.8 0.0745
0.080 21.0 0.934 0.474 19.6 0.0662
0.070 24.0 0.809 0.414 19.4 0.0580
0.060 28.0 0.686 0.355 19.2 0.0497
0.050 33.6 0.566 0.296 19.0 0.0414
0.8 0.40 4.72 5.08 2.10 24.0 0.294
0.30 6.30 3.49 1.58 22.0 0.221
0.20 9.44 2.12 1.05 20.0 0.147
0.15 12.6 1.51 0.789 19.0 0.110
0.10 18.9 0.953 0.526 18.0 0.0736
0.090 21.0 0.848 0.474 17.8 0.0662
0.080 23.6 0.746 0.421 17.6 0.0589
0.070 27.0 0.645 0.368 17.4 0.0515
0.7 0.30 7.19 2.78 1.38 20.0 0.193
0.20 10.8 1.67 0.921 18.0 0.129
0.15 14.4 1.18 0.691 17.0 0.097
0.10 21.6 0.741 0.460 16.0 0.0644
0.090 24.0 0.659 0.414 15.8 0.0580
0.080 27.0 0.578 0.368 15.6 0.0515
0.070 30.8 0.499 0.322 15.4 0.0451
0.060 36.0 0.423 0.276 15.2 0.0386
0.6 0.30 8.4 2.14 1.18 18.0 0.166
0.20 12.6 1.27 0.789 16.0 0.110
0.15 16.8 0.894 0.592 15.0 0.0828
0.10 25.2 0.556 0.395 14.0 0.0552
0.090 28.0 0.493 0.355 13.8 0.0497
0.080 31.5 0.432 0.316 13.6 0.0442
0.070 36.0 0.373 0.276 13.4 0.0386
0.060 42.0 0.315 0.237 13.2 0.0331
0.050 50.4 0.258 0.197 13.0 0.0276
0.5 0.30 10.1 1.59 0.987 16.0 0.138
0.20 15.1 0.927 0.658 14.0 0.0920
0.15 20.1 0.645 0.493 13.0 0.0690
0.10 30.2 0.397 0.329 12.0 0.0460
0.090 33.6 0.351 0.296 11.8 0.0414
0.080 37.8 0.307 0.263 11.6 0.0368
0.070 43.2 0.264 0.230 11.4 0.0322
0.060 50.4 0.222 0.197 11.2 0.0276
0.050 60.4 0.182 0.164 11.0 0.0230
0.4 0.20 18.9 0.635 0.526 12.0 0.0736
0.15 25.2 0.437 0.395 11.0 0.0552
0.10 37.8 0.265 0.263 10.0 0.0368
0.090 42.0 0.234 0.237 9.80 0.0331
0.080 47.2 0.203 0.210 9.60 0.0294
0.070 54.0 0.174 0.184 9.40 0.0258
0.060 63.0 0.146 0.158 9.20 0.0221
0.050 75.5 0.119 0.132 9.00 0.0184
0.3 0.15 33.6 0.268 0.296 9.00 0.0414
0.10 50.4 0.159 0.197 8.00 0.0276
0.090 56.0 0.139 0.178 7.80 0.0248
0.080 63.0 0.121 0.158 7.60 0.0221
0.070 71.9 0.103 0.138 7.40 0.0193
0.060 83.9 0.0858 0.118 7.20 0.0166

* cm2/Ω = I2 × Ct /p (I = Current, Ct = temperature factor, p = surface load W/cm2)

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Kanthal® D

Ribbon dimensions and properties

Resistivity 1.39 Ω mm2/m (836 Ω/cmf). Density 7.25 g /cm3 (0.262 lb/in3).

To obtain resistance at working temperature, multiply by the factor Ct in the following table.

°C 20 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300
Ct 1.00 1.00 1.01 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.07 1.07 1.08 1.08
Width Thickness Resistance at 20°C Surface area per Ω Weight Surface area Cross sectional area
mm mm Ω/m cm2/Ω* g/m cm2/m mm2
4 0.50 0.734 123 13.3 90.0 1.84
0.40 0.917 96.0 10.7 88.0 1.47
0.30 1.22 70.3 8.00 86.0 1.10
0.20 1.83 45.8 5.34 84.0 0.736
0.15 2.45 33.9 4.00 83.0 0.552
0.10 3.67 22.4 2.67 82.0 0.368
3 1.0 0.489 164 20.0 80.0 2.76
0.90 0.543 144 18.0 78.0 2.48
0.80 0.611 124 16.0 76.0 2.21
0.70 0.699 106 14.0 74.0 1.93
0.60 0.815 88.3 12.0 72.0 1.66
0.50 0.978 71.6 10.0 70.0 1.38
0.40 1.22 55.6 8.0 68.0 1.10
0.30 1.63 40.5 6.0 66.0 0.828
0.20 2.45 26.2 4.0 64.0 0.552
0.15 3.26 19.3 3.0 63.0 0.414
0.10 4.89 12.7 2.0 62.0 0.276
2.5 1.0 0.587 119 16.7 70.0 2.30
0.90 0.652 104 15.0 68.0 2.07
0.80 0.734 90.0 13.3 66.0 1.84
0.70 0.839 76.3 11.7 64.0 1.61
0.60 0.978 63.4 10.0 62.0 1.38
0.50 1.17 51.1 8.34 60.0 1.15
0.40 1.47 39.5 6.67 58.0 0.920
0.30 1.96 28.6 5.00 56.0 0.690
0.20 2.93 18.4 3.34 54.0 0.460
0.15 3.91 13.5 2.50 53.0 0.345
0.10 5.87 8.86 1.67 52.0 0.230
2.25 1.0 0.652 99.7 15.0 65.0 2.07
0.90 0.725 86.9 13.5 63.0 1.86
0.80 0.815 74.8 12.0 61.0 1.66
0.70 0.932 63.3 10.5 59.0 1.45
0.60 1.09 52.4 9.00 57.0 1.24
0.50 1.30 42.2 7.50 55.0 1.04
0.40 1.63 32.5 6.00 53.0 0.828
0.30 2.17 23.5 4.50 51.0 0.621
0.20 3.26 15.0 3.00 49.0 0.414
0.15 4.35 11.0 2.25 48.0 0.311
0.10 6.52 7.21 1.50 47.0 0.207
2.0 0.80 0.917 61.1 10.7 56.0 1.47
0.70 1.05 51.5 9.34 54.0 1.29
0.60 1.22 42.5 8.00 52.0 1.10
0.50 1.47 34.1 6.67 50.0 0.920
0.40 1.83 26.2 5.34 48.0 0.736
0.30 2.45 18.8 4.00 46.0 0.552
0.20 3.67 12.0 2.67 44.0 0.368
0.15 4.89 8.79 2.00 43.0 0.276
0.10 7.34 5.72 1.33 42.0 0.184
1.75 1.0 0.839 65.6 11.7 55.0 1.61
0.90 0.932 56.9 10.5 53.0 1.45
0.80 1.05 48.7 9.34 51.0 1.29
0.70 1.20 40.9 8.17 49.0 1.13
0.60 1.40 33.6 7.00 47.0 0.966
0.50 1.68 26.8 5.84 45.0 0.805
0.40 2.10 20.5 4.67 43.0 0.644
0.30 2.80 14.7 3.50 41.0 0.483
0.20 4.19 9.30 2.33 39.0 0.322
0.15 5.59 6.80 1.75 38.0 0.242
0.10 8.39 4.41 1.17 37.0 0.161
1.5 0.70 1.40 31.5 7.00 44.0 0.966
0.60 1.63 25.8 6.00 42.0 0.828
0.50 1.96 20.4 5.00 40.0 0.690
0.40 2.45 15.5 4.00 38.0 0.552
0.30 3.26 11.0 3.00 36.0 0.414
0.50 2.52 13.5 3.95 34.0 0.552
0.40 3.15 10.2 3.16 32.0 0.442
0.30 4.20 7.15 2.37 30.0 0.331
0.20 6.30 4.45 1.58 28.0 0.221
0.20 4.89 6.95 2.00 34.0 0.276
0.15 6.52 5.06 1.50 33.0 0.207
0.10 9.78 3.27 1.00 32.0 0.138
0.090 10.9 2.93 0.900 31.8 0.124
0.080 12.2 2.58 0.800 31.6 0.110
1.25 0.60 1.96 18.9 5.00 37.0 0.690
0.50 2.35 14.9 4.17 35.0 0.575
0.40 2.93 11.2 3.34 33.0 0.460
0.30 3.91 7.92 2.50 31.0 0.345
0.20 5.87 4.94 1.67 29.0 0.230
0.15 7.83 3.58 1.25 28.0 0.173
0.10 11.7 2.30 0.834 27.0 0.115
0.090 13.0 2.05 0.750 26.8 0.104
0.080 14.7 1.81 0.667 26.6 0.0920
0.070 16.8 1.57 0.584 26.4 0.0805
1.0 0.60 2.45 13.1 4.00 32.0 0.552
0.50 2.93 10.2 3.34 30.0 0.460
0.40 3.67 7.63 2.67 28.0 0.368
0.30 4.89 5.32 2.00 26.0 0.276
0.20 7.34 3.27 1.33 24.0 0.184
0.15 9.78 2.35 1.00 23.0 0.138
0.10 14.7 1.50 0.667 22.0 0.0920
0.090 16.3 1.34 0.600 21.8 0.0828
0.080 18.3 1.18 0.534 21.6 0.0736
0.9 0.50 3.26 8.59 3.00 28.0 0.414
0.40 4.08 6.38 2.40 26.0 0.331
0.30 5.43 4.42 1.80 24.0 0.248
0.20 8.15 2.70 1.20 22.0 0.166
0.15 10.9 1.93 0.900 21.0 0.124
0.10 16.3 1.23 0.600 20.0 0.0828
0.090 18.1 1.09 0.540 19.8 0.0745
0.080 20.4 0.962 0.480 19.6 0.0662
0.070 23.3 0.833 0.420 19.4 0.0580
0.060 27.2 0.707 0.360 19.2 0.0497
0.050 32.6 0.583 0.300 19.0 0.0414
0.8 0.50 3.67 7.09 2.67 26.0 0.368
0.40 4.59 5.23 2.13 24.0 0.294
0.30 6.11 3.60 1.60 22.0 0.221
0.20 9.17 2.18 1.07 20.0 0.147
0.15 12.2 1.55 0.800 19.0 0.110
0.10 18.3 0.981 0.534 18.0 0.0736
0.090 20.4 0.873 0.480 17.8 0.0662
0.080 22.9 0.768 0.427 17.6 0.0589
0.070 26.2 0.664 0.374 17.4 0.0515
0.40 5.24 4.20 1.87 22.0 0.258
0.30 6.99 2.86 1.40 20.0 0.193
0.7 0.20 10.5 1.72 0.934 18.0 0.129
0.15 14.0 1.22 0.700 17.0 0.097
0.10 21.0 0.763 0.467 16.0 0.0644
0.090 23.3 0.678 0.420 15.8 0.0580
0.080 26.2 0.595 0.374 15.6 0.0515
0.070 29.9 0.514 0.327 15.4 0.0451
0.060 34.9 0.435 0.280 15.2 0.0386
0.6 0.30 8.15 2.21 1.20 18.0 0.166
0.20 12.2 1.31 0.800 16.0 0.110
0.15 16.3 0.920 0.600 15.0 0.0828
0.10 24.5 0.572 0.400 14.0 0.0552
0.090 27.2 0.508 0.360 13.8 0.0497
0.080 30.6 0.445 0.320 13.6 0.0442
0.070 34.9 0.384 0.280 13.4 0.0386
0.060 40.8 0.324 0.240 13.2 0.0331
0.050 48.9 0.266 0.200 13.0 0.0276
0.5 0.30 9.78 1.64 1.00 16.0 0.138
0.20 14.7 0.954 0.667 14.0 0.0920
0.15 19.6 0.664 0.500 13.0 0.0690
0.10 29.3 0.409 0.334 12.0 0.0460
0.090 32.6 0.362 0.300 11.8 0.0414
0.080 36.7 0.316 0.267 11.6 0.0368
0.070 41.9 0.272 0.233 11.4 0.0322
0.060 48.9 0.229 0.200 11.2 0.0276
0.050 58.7 0.187 0.167 11.0 0.0230
0.4 0.20 18.3 0.654 0.534 12.0 0.0736
0.15 24.5 0.450 0.400 11.0 0.0552
0.10 36.7 0.273 0.267 10.0 0.0368
0.090 40.8 0.240 0.240 9.80 0.0331
0.080 45.9 0.209 0.213 9.60 0.0294
0.070 52.4 0.179 0.187 9.40 0.0258
0.060 61.1 0.150 0.160 9.20 0.0221
0.050 73.4 0.123 0.133 9.00 0.0184
0.3 0.15 32.6 0.276 0.300 9.00 0.0414
0.10 48.9 0.164 0.200 8.00 0.0276
0.090 54.3 0.144 0.180 7.80 0.0248
0.080 61.1 0.124 0.160 7.60 0.0221
0.070 69.9 0.106 0.140 7.40 0.0193
0.060 81.5 0.0883 0.120 7.20 0.0166

* cm2/Ω = I2 × Ct /p (I = Current, Ct = temperature factor, p = surface load W/cm2)

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Alkrothal®

Ribbon dimensions and properties

Resistivity 1.25 Ω mm2/m (744 Ω/cmf). Density 7.28 g /cm3 (0.263 lb/in3).

To obtain resistance at working temperature, multiply by the factor Ct in the following table.

°C 20 100 200 300 400 500 600 700 800 900 1000 1100
Ct 1.00 1.00 1.02 1.03 1.04 1.05 1.08 1.09 1.10 1.11 1.11 1.12
Width Thickness Resistance at 20°C Surface area per Ω Weight Surface area Cross sectional area
mm mm Ω/m cm2/Ω* g/m cm2/m mm2
4 0.50 0.679 132 13.4 90.0 1.84
0.40 0.849 103.6 10.7 88.0 1.47
0.30 1.13 76.0 8.04 86.0 1.10
0.20 1.70 49.5 5.36 84.0 0.736
0.15 2.26 36.7 4.02 83.0 0.552
0.10 3.40 24.1 2.67 82.0 0.368
3 1.0 0.453 177 20.1 80.0 2.76
0.90 0.503 155 18.1 78.0 2.48
0.80 0.566 134 16.1 76.0 2.21
0.70 0.647 114 14.1 74.0 1.93
0.60 0.755 95.4 12.1 72.0 1.66
0.50 0.906 77.3 10.0 70.0 1.38
0.40 1.13 60.1 8.0 68.0 1.10
0.30 1.51 43.7 6.0 66.0 0.828
0.20 2.26 28.3 4.0 64.0 0.552
0.15 3.02 20.9 3.0 63.0 0.414
0.10 4.53 13.7 2.0 62.0 0.276
2.5 1.0 0.543 129 16.7 70.0 2.30
0.90 0.604 113 15.1 68.0 2.07
0.80 0.679 97.2 13.4 66.0 1.84
0.70 0.776 82.4 11.7 64.0 1.61
0.60 0.906 68.4 10.0 62.0 1.38
0.50 1.09 55.2 8.37 60.0 1.15
0.40 1.36 42.7 6.70 58.0 0.920
0.30 1.81 30.9 5.02 56.0 0.690
0.20 2.72 19.9 3.35 54.0 0.460
0.15 3.62 14.6 2.51 53.0 0.345
0.10 5.43 9.57 1.67 52.0 0.230
2.25 1.0 0.604 107.6 15.1 65.0 2.07
0.90 0.671 93.9 13.6 63.0 1.86
0.80 0.755 80.8 12.1 61.0 1.66
0.70 0.863 68.4 10.5 59.0 1.45
0.60 1.006 56.6 9.0 57.0 1.24
0.50 1.208 45.5 7.5 55.0 1.04
0.40 1.510 35.1 6.0 53.0 0.828
0.30 2.013 25.3 4.5 51.0 0.621
0.20 3.019 16.2 3.0 49.0 0.414
0.15 4.026 11.9 2.3 48.0 0.311
0.10 6.52 7.21 1.5 47.0 0.207
2.0 0.80 0.849 65.9 10.7 56.0 1.47
0.70 0.970 55.6 9.4 54.0 1.29
0.60 1.13 45.9 8.04 52.0 1.10
0.50 1.36 36.8 6.70 50.0 0.920
0.40 1.70 28.3 5.36 48.0 0.736
0.30 2.26 20.3 4.02 46.0 0.552
0.20 3.40 13.0 2.68 44.0 0.368
0.15 4.53 9.5 2.01 43.0 0.276
0.10 7.34 5.72 1.34 42.0 0.184
1.75 1.0 0.776 70.8 11.7 55.0 1.61
0.90 0.863 61.4 10.5 53.0 1.45
0.80 0.970 52.6 9.4 51.0 1.29
0.70 1.11 44.2 8.20 49.0 1.13
0.60 1.29 36.3 7.03 47.0 0.966
0.50 1.55 29.0 5.86 45.0 0.805
0.40 1.94 22.2 4.69 43.0 0.644
0.30 2.59 15.8 3.52 41.0 0.483
0.20 3.88 10.0 2.34 39.0 0.322
0.15 5.18 7.34 1.76 38.0 0.242
0.10 8.39 4.41 1.17 37.0 0.161
1.5 0.70 1.29 34.0 7.04 44.0 0.966
0.60 1.51 27.8 6.03 42.0 0.828
0.50 1.81 22.1 5.03 40.0 0.690
0.40 2.26 16.8 4.02 38.0 0.552
0.30 3.02 11.9 3.02 36.0 0.414
0.20 4.53 7.51 2.01 34.0 0.276
0.15 6.04 5.46 1.51 33.0 0.207
0.10 9.06 3.53 1.01 32.0 0.138
0.090 10.1 3.16 0.905 31.8 0.124
0.080 11.3 2.79 0.805 31.6 0.110
1.25 0.60 1.81 20.4 5.02 37.0 0.690
0.50 2.17 16.1 4.19 35.0 0.575
0.40 2.72 12.1 3.35 33.0 0.460
0.30 3.62 8.56 2.51 31.0 0.345
0.20 5.43 5.34 1.67 29.0 0.230
0.15 7.25 3.86 1.26 28.0 0.173
0.10 10.9 2.48 0.837 27.0 0.115
0.090 12.1 2.22 0.753 26.8 0.104
0.080 13.6 1.96 0.670 26.6 0.0920
0.070 15.5 1.70 0.586 26.4 0.0805
1.0 0.60 2.26 14.1 4.02 32.0 0.552
0.50 2.72 11.0 3.35 30.0 0.460
0.40 3.40 8.24 2.68 28.0 0.368
0.30 4.53 5.74 2.01 26.0 0.276
0.20 6.79 3.53 1.34 24.0 0.184
0.15 9.06 2.54 1.00 23.0 0.138
0.10 13.6 1.62 0.670 22.0 0.0920
0.090 15.1 1.44 0.603 21.8 0.0828
0.080 17.0 1.27 0.536 21.6 0.0736
0.9 0.50 3.02 9.27 3.01 28.0 0.414
0.40 3.77 6.89 2.41 26.0 0.331
0.30 5.03 4.77 1.81 24.0 0.248
0.20 7.55 2.91 1.21 22.0 0.166
0.15 10.1 2.09 0.904 21.0 0.124
0.10 15.1 1.32 0.603 20.0 0.0828
0.090 16.8 1.18 0.543 19.8 0.0745
0.080 18.9 1.039 0.482 19.6 0.0662
0.070 21.6 0.900 0.422 19.4 0.0580
0.8 0.40 4.25 5.65 2.14 24.0 0.294
0.30 5.66 3.89 1.61 22.0 0.221
0.20 8.49 2.36 1.07 20.0 0.147
0.15 11.3 1.68 0.804 19.0 0.110
0.10 17.0 1.060 0.536 18.0 0.0736
0.090 18.9 0.943 0.482 17.8 0.0662
0.080 21.2 0.829 0.429 17.6 0.0589
0.070 24.3 0.717 0.375 17.4 0.0515
0.7 0.30 6.47 3.09 1.41 20.0 0.193
0.20 9.7 1.85 0.938 18.0 0.129
0.15 12.9 1.31 0.703 17.0 0.097
0.10 19.4 0.824 0.469 16.0 0.0644
0.090 21.6 0.733 0.422 15.8 0.0580
0.080 24.3 0.643 0.375 15.6 0.0515
0.070 27.7 0.555 0.328 15.4 0.0451
0.060 32.3 0.470 0.281 15.2 0.0386
0.6 0.30 7.55 2.38 1.21 18.0 0.166
0.30 7.55 2.38 1.21 18.0 0.166
0.20 11.3 1.41 0.804 16.0 0.110
0.15 15.1 0.994 0.603 15.0 0.0828
0.10 22.6 0.618 0.402 14.0 0.0552
0.090 25.2 0.548 0.362 13.8 0.0497
0.080 28.3 0.480 0.321 13.6 0.0442
0.070 32.3 0.414 0.281 13.4 0.0386
0.060 37.7 0.350 0.241 13.2 0.0331
0.050 45.3 0.287 0.201 13.0 0.0276
0.5 0.30 9.06 1.77 1.00 16.0 0.138
0.20 13.6 1.030 0.670 14.0 0.0920
0.15 18.1 0.718 0.502 13.0 0.0690
0.10 27.2 0.442 0.335 12.0 0.0460
0.090 30.2 0.391 0.301 11.8 0.0414
0.080 34.0 0.342 0.268 11.6 0.0368
0.070 38.8 0.294 0.234 11.4 0.0322
0.060 45.3 0.247 0.201 11.2 0.0276
0.050 54.3 0.202 0.167 11.0 0.0230
0.4 0.20 17.0 0.707 0.536 12.0 0.0736
0.15 22.6 0.486 0.402 11.0 0.0552
0.10 34.0 0.294 0.268 10.0 0.0368
0.090 37.7 0.260 0.241 9.80 0.0331
0.080 42.5 0.226 0.214 9.60 0.0294
0.070 48.5 0.194 0.188 9.40 0.0258
0.060 56.6 0.163 0.161 9.20 0.0221
0.050 73.4 0.123 0.134 9.00 0.0184
0.3 0.15 30.2 0.298 0.301 9.00 0.0414
0.10 45.3 0.177 0.201 8.00 0.0276
0.090 50.3 0.155 0.181 7.80 0.0248
0.080 56.6 0.134 0.161 7.60 0.0221
0.070 64.7 0.114 0.141 7.40 0.0193
0.060 75.5 0.0954 0.121 7.20 0.0166

* cm2/Ω = I2 × Ct /p (I = Current, Ct = temperature factor, p = surface load W/cm2)

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Nikrothal® 80, Nikrothal® 60 and Nikrothal® 40

Ribbon dimensions and properties

Nikrothal® 80: Resistivity 1.09 Ω mm2/m (655 Ω/cmf). Density 8.30 g /cm3 (0.300 lb/in3).

Nikrothal® 60: Resistivity 1.11 Ω mm2/m (668 Ω/cmf). Density 8.20 g /cm3 (0.296 lb/in3).

Nikrothal® 40: Resistivity 1.04 Ω mm2/m (626 Ω/cmf). Density 7.90 g /cm3 (0.285 lb/in3).

To obtain resistance at working temperature, multiply by the factor Ct in the following table.

°C 20 100 200 300 400 500 600 700 800 900 1000 1100 1200
Nikrothal® 80 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
Nikrothal® 60  Ct 1.00 1.02 1.04 1.05 1.06 1.08 1.09 1.09 1.10 1.10 1.11 1.12 1.13
Nikrothal® 40  Ct 1.00 1.03 1.06 1.10 1.12 1.15 1.17 1.19 1.21 1.22 1.23 1.24

For different alloys, multiply the figures in the table with:

Alloy Resistance at 20°C, Ω/m Surface area per Ω , cm2/Ω Weight, g/m
Nikrothal® 60 1.018 0.984 0.988
Nikrothal® 40 0.954 1.048 0.952
Width Thickness Resistance at 20°C Surface area per Ω Weight Surface area Cross sectional area
mm mm Ω/m cm2/Ω* g/m cm2/m mm2
4 0.50 0.592 152 15.3 90.0 1.84
0.40 0.740 119 12.2 88.0 1.47
0.30 0.987 87.1 9.16 86.0 1.10
0.20 1.48 56.7 6.11 84.0 0.736
0.15 1.97 42.0 4.58 83.0 0.552
0.10 2.96 27.7 3.05 82.0 0.368
3 1.0 0.395 203 22.9 80.0 2.76
0.90 0.439 178 20.6 78.0 2.48
0.80 0.494 154 18.3 76.0 2.21
0.70 0.564 131 16.0 74.0 1.93
0.60 0.658 109 13.7 72.0 1.66
0.50 0.790 88.6 11.5 70.0 1.38
0.40 0.987 68.9 9.16 68.0 1.10
0.30 1.32 50.1 6.87 66.0 0.828
0.20 1.97 32.4 4.58 64.0 0.552
0.15 2.63 23.9 3.44 63.0 0.414
0.10 3.95 15.7 2.29 62.0 0.276
2.5 1.0 0.474 148 19.1 70.0 2.30
0.90 0.527 129 17.2 68.0 2.07
0.80 0.592 111 15.3 66.0 1.84
0.70 0.677 94.5 13.4 64.0 1.61
0.60 0.790 78.5 11.5 62.0 1.38
0.50 0.948 63.3 9.55 60.0 1.15
0.40 1.18 49.0 7.64 58.0 0.920
0.30 1.58 35.4 5.73 56.0 0.690
0.20 2.37 22.8 3.82 54.0 0.460
0.15 3.16 16.8 2.86 53.0 0.345
0.10 4.74 11.0 1.91 52.0 0.230
2.0 0.80 0.740 75.6 12.2 56.0 1.47
0.70 0.846 63.8 10.7 54.0 1.29
0.60 0.987 52.7 9.16 52.0 1.10
0.50 1.18 42.2 7.64 50.0 0.920
0.40 1.48 32.4 6.11 48.0 0.736
0.30 1.97 23.3 4.58 46.0 0.552
0.20 2.96 14.9 3.05 44.0 0.368
0.15 3.95 10.9 2.29 43.0 0.276
0.10 5.92 7.09 1.53 42.0 0.184
1.8 0.80 0.823 63.2 11.0 52.0 1.32
0.70 0.940 53.2 9.62 50.0 1.16
0.60 1.10 43.8 8.25 48.0 0.994
0.50 1.32 34.9 6.87 46.0 0.828
0.40 1.65 26.7 5.50 44.0 0.662
0.30 2.19 19.1 4.12 42.0 0.497
0.20 3.29 12.2 2.75 40.0 0.331
0.15 4.39 8.89 2.06 39.0 0.248
0.10 6.58 5.77 1.37 38.0 0.166
1.5 0.80 0.987 46.6 9.16 46.0 1.10
0.70 1.13 39.0 8.02 44.0 0.966
0.60 1.32 31.9 6.87 42.0 0.828
0.50 1.58 25.3 5.73 40.0 0.690
0.40 1.97 19.2 4.58 38.0 0.552
0.30 2.63 13.7 3.44 36.0 0.414
0.20 3.95 8.61 2.29 34.0 0.276
0.15 5.27 6.27 1.72 33.0 0.207
0.10 7.90 4.05 1.15 32.0 0.138
0.090 8.78 3.62 1.03 31.8 0.124
0.080 9.87 3.20 0.916 31.6 0.110
1.2 0.80 1.23 32.4 7.33 40.0 0.883
0.70 1.41 26.9 6.41 38.0 0.773
0.60 1.65 21.9 5.50 36.0 0.662
0.50 1.97 17.2 4.58 34.0 0.552
0.40 2.47 13.0 3.67 32.0 0.442
0.30 3.29 9.12 2.75 30.0 0.331
0.20 4.94 5.67 1.83 28.0 0.221
0.15 6.58 4.10 1.37 27.0 0.166
0.10 9.87 2.63 0.916 26.0 0.110
0.090 11.0 2.35 0.825 25.8 0.099
0.080 12.3 2.07 0.733 25.6 0.088
1.0 0.60 1.97 16.2 4.58 32.0 0.552
0.50 2.37 12.7 3.82 30.0 0.460
0.40 2.96 9.45 3.05 28.0 0.368
0.30 3.95 6.58 2.29 26.0 0.276
0.20 5.92 4.05 1.53 24.0 0.184
0.15 7.90 2.91 1.15 23.0 0.138
0.10 11.8 1.86 0.764 22.0 0.0920
0.090 13.2 1.66 0.687 21.8 0.0828
0.080 14.8 1.46 0.611 21.6 0.0736
0.9 0.50 2.63 10.6 3.44 28.0 0.414
0.40 3.29 7.90 2.75 26.0 0.331
0.30 4.39 5.47 2.06 24.0 0.248
0.20 6.58 3.34 1.37 22.0 0.166
0.15 8.78 2.39 1.03 21.0 0.124
0.10 13.2 1.52 0.687 20.0 0.0828
0.090 14.6 1.35 0.619 19.8 0.0745
0.080 16.5 1.19 0.550 19.6 0.0662
0.070 18.8 1.03 0.481 19.4 0.0580
0.8 0.40 3.70 6.48 2.44 24.0 0.294
0.30 4.94 4.46 1.83 22.0 0.221
0.20 7.40 2.70 1.22 20.0 0.147
0.15 9.87 1.92 0.916 19.0 0.110
0.10 14.8 1.22 0.611 18.0 0.0736
0.090 16.5 1.08 0.550 17.8 0.0662
0.080 18.5 0.951 0.489 17.6 0.0589
0.070 21.2 0.822 0.428 17.4 0.0515
0.10 14.8 1.22 0.611 18.0 0.0736
0.090 16.5 1.08 0.550 17.8 0.0662
0.7 0.30 5.64 3.54 1.60 20.0 0.193
0.20 8.46 2.13 1.07 18.0 0.129
0.15 11.3 1.51 0.802 17.0 0.097
0.10 16.9 0.945 0.535 16.0 0.0644
0.090 18.8 0.840 0.481 15.8 0.0580
0.080 21.2 0.737 0.428 15.6 0.0515
0.070 24.2 0.637 0.374 15.4 0.0451
0.060 28.2 0.539 0.321 15.2 0.0386
0.6 0.30 6.58 2.73 1.37 18.0 0.166
0.20 9.87 1.62 0.916 16.0 0.110
0.15 13.2 1.14 0.687 15.0 0.0828
0.10 19.7 0.709 0.458 14.0 0.0552
0.090 21.9 0.629 0.412 13.8 0.0497
0.080 24.7 0.551 0.367 13.6 0.0442
0.070 28.2 0.475 0.321 13.4 0.0386
0.060 32.9 0.401 0.275 13.2 0.0331
0.050 39.5 0.329 0.229 13.0 0.0276
0.5 0.30 7.90 2.03 1.15 16.0 0.138
0.20 11.8 1.18 0.764 14.0 0.0920
0.15 15.8 0.823 0.573 13.0 0.0690
0.10 23.7 0.506 0.382 12.0 0.0460
0.090 26.3 0.448 0.344 11.8 0.0414
0.080 29.6 0.392 0.305 11.6 0.0368
0.070 33.9 0.337 0.267 11.4 0.0322
0.060 39.5 0.284 0.229 11.2 0.0276
0.050 47.4 0.232 0.191 11.0 0.0230
0.4 0.20 14.8 0.810 0.611 12.0 0.0736
0.15 19.7 0.557 0.458 11.0 0.0552
0.10 29.6 0.338 0.305 10.0 0.0368
0.090 32.9 0.298 0.275 9.80 0.0331
0.080 37.0 0.259 0.244 9.60 0.0294
0.070 42.3 0.222 0.214 9.40 0.0258
0.060 49.4 0.186 0.183 9.20 0.0221
0.050 59.2 0.152 0.153 9.00 0.0184
0.3 0.15 26.3 0.342 0.344 9.00 0.0414
0.10 39.5 0.203 0.229 8.00 0.0276
0.090 43.9 0.178 0.206 7.80 0.0248
0.080 49.4 0.154 0.183 7.60 0.0221
0.070 56.4 0.131 0.160 7.40 0.0193
0.060 65.8 0.109 0.137 7.20 0.0166

* cm2/Ω = I2 × Ct /p (I = Current, Ct = temperature factor, p = surface load W/cm2)

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Cuprothal® 49

Ribbon dimensions and properties

Resistivity 0.49 Ω mm2/m (295 Ω/cmf). Density 8.90 g /cm3 (0.321 lb/in3).

To obtain resistance at working temperature, multiply by the factor Ct in the following table.

°C 20 100 200 300 400 500 600
Ct 1.000 1.002 1.002 1.001 1.005 1.017 1.037
Width Thickness Resistance at 20°C Surface area per Ω Weight Surface area Cross sectional area
mm mm Ω/m cm2/Ω* g/m cm2/m mm2
4 0.50 0.266 338 16.4 90.0 1.84
0.40 0.333 264 13.1 88.0 1.47
0.30 0.444 193.8 9.83 86.0 1.10
0.20 0.666 126.2 6.55 84.0 0.736
0.15 0.888 93.5 4.91 83.0 0.552
0.10 1.33 61.6 3.28 82.0 0.368
3 1.0 0.178 451 24.6 80.0 2.76
0.90 0.197 395 22.1 78.0 2.48
0.80 0.222 342 19.7 76.0 2.21
0.70 0.254 292 17.2 74.0 1.93
0.60 0.296 243 14.7 72.0 1.66
0.50 0.355 197 12.3 70.0 1.38
0.40 0.444 153 9.83 68.0 1.10
0.30 0.592 112 7.37 66.0 0.828
0.20 0.888 72.1 4.91 64.0 0.552
0.15 1.18 53.2 3.68 63.0 0.414
0.10 1.78 34.9 2.46 62.0 0.276
2.5 1.0 0.213 329 20.5 70.0 2.30
0.90 0.237 287 18.4 68.0 2.07
0.80 0.266 248 16.4 66.0 1.84
0.70 0.304 210 14.3 64.0 1.61
0.60 0.355 175 12.3 62.0 1.38
0.50 0.426 141 10.2 60.0 1.15
0.40 0.533 109 8.19 58.0 0.920
0.30 0.710 78.9 6.14 56.0 0.690
0.20 1.07 50.7 4.09 54.0 0.460
0.15 1.42 37.3 3.07 53.0 0.345
0.10 2.13 24.4 2.05 52.0 0.230
2.0 0.80 0.333 168 13.1 56.0 1.47
0.70 0.380 142 11.5 54.0 1.29
0.60 0.444 117 9.83 52.0 1.10
0.50 0.533 93.9 8.19 50.0 0.920
0.40 0.666 72.1 6.55 48.0 0.736
0.30 0.888 51.8 4.91 46.0 0.552
0.20 1.33 33.0 3.28 44.0 0.368
0.15 1.78 24.2 2.46 43.0 0.276
0.10 2.66 15.77 1.64 42.0 0.184
1.8 0.80 0.370 141 11.8 52.0 1.32
0.70 0.423 118 10.3 50.0 1.16
0.60 0.493 97.3 8.84 48.0 0.994
0.50 0.592 77.7 7.37 46.0 0.828
0.40 0.740 59.5 5.90 44.0 0.662
0.30 0.986 42.6 4.42 42.0 0.497
0.20 1.48 27.0 2.95 40.0 0.331
0.15 1.97 19.77 2.21 39.0 0.248
0.10 2.96 12.84 1.47 38.0 0.166
1.5 0.80 0.444 104 9.83 46.0 1.10
0.70 0.507 86.7 8.60 44.0 0.966
0.60 0.592 71.0 7.37 42.0 0.828
0.50 0.710 56.3 6.14 40.0 0.690
0.40 0.888 42.8 4.91 38.0 0.552
0.30 1.18 30.4 3.68 36.0 0.414
0.20 1.78 19.2 2.46 34.0 0.276
0.15 2.37 13.9 1.84 33.0 0.207
0.10 3.55 9.01 1.23 32.0 0.138
0.090 3.95 8.06 1.11 31.8 0.124
0.080 4.44 7.12 0.983 31.6 0.110
1.2 0.80 0.555 72.1 7.86 40.0 0.883
0.70 0.634 59.9 6.88 38.0 0.773
0.60 0.740 48.7 5.90 36.0 0.662
0.50 0.888 38.3 4.91 34.0 0.552
0.40 1.11 28.8 3.93 32.0 0.442
0.30 1.48 20.3 2.95 30.0 0.331
0.20 2.22 12.6 1.97 28.0 0.221
0.15 2.96 9.12 1.47 27.0 0.166
0.10 4.44 5.86 0.983 26.0 0.110
0.090 4.93 5.23 0.884 25.8 0.099
0.080 5.55 4.61 0.786 25.6 0.088
1.0 0.60 0.89 36.0 4.91 32.0 0.552
0.50 1.1 28.2 4.09 30.0 0.460
0.40 1.3 21.0 3.28 28.0 0.368
0.30 1.8 14.6 2.46 26.0 0.276
0.20 2.7 9.01 1.64 24.0 0.184
0.15 3.6 6.48 1.23 23.0 0.138
0.10 5.3 4.13 0.819 22.0 0.0920
0.090 5.9 3.68 0.737 21.8 0.0828
0.080 6.7 3.24 0.655 21.6 0.0736
0.9 0.50 1.2 23.7 3.68 28.0 0.414
0.40 1.5 17.6 2.95 26.0 0.331
0.30 2.0 12.2 2.21 24.0 0.248
0.20 3.0 7.44 1.47 22.0 0.166
0.15 3.9 5.32 1.11 21.0 0.124
0.10 5.9 3.38 0.737 20.0 0.0828
0.090 6.6 3.01 0.663 19.8 0.0745
0.080 7.4 2.65 0.590 19.6 0.0662
0.070 8.5 2.29 0.516 19.4 0.0580
0.8 0.40 1.66 14.42 2.62 24.0 0.294
0.30 2.22 9.91 1.97 22.0 0.221
0.20 3.33 6.01 1.31 20.0 0.147
0.15 4.44 4.28 0.983 19.0 0.110
0.10 6.66 2.70 0.655 18.0 0.0736
0.090 7.40 2.41 0.590 17.8 0.0662
0.080 8.32 2.11 0.524 17.6 0.0589
0.070 9.51 1.83 0.459 17.4 0.0515
0.7 0.30 2.54 7.89 1.72 20.0 0.193
0.20 3.80 4.73 1.15 18.0 0.129
0.15 5.07 3.35 0.860 17.0 0.0966
0.10 7.61 2.10 0.573 16.0 0.0644
0.090 8.45 1.87 0.516 15.8 0.0580
0.080 9.51 1.64 0.459 15.6 0.0515
0.070 10.9 1.42 0.401 15.4 0.0451
0.060 12.7 1.20 0.344 15.2 0.0386
0.6 0.30 2.96 6.08 1.47 18.0 0.166
0.20 4.44 3.60 0.983 16.0 0.110
0.15 5.92 2.53 0.737 15.0 0.0828
0.10 8.88 1.58 0.491 14.0 0.0552
0.090 9.86 1.40 0.442 13.8 0.0497
0.080 11.1 1.23 0.393 13.6 0.0442
0.070 12.7 1.06 0.344 13.4 0.0386
0.060 14.8 0.892 0.295 13.2 0.0331
0.050 17.8 0.732 0.246 13.0 0.0276
0.5 0.30 3.55 4.51 1.23 16.0 0.138
0.20 5.33 2.63 0.819 14.0 0.0920
0.15 7.10 1.83 0.614 13.0 0.0690
0.10 10.7 1.13 0.409 12.0 0.0460
0.090 11.8 0.997 0.368 11.8 0.0414
0.080 13.3 0.871 0.328 11.6 0.0368
0.070 15.2 0.749 0.287 11.4 0.0322
0.060 17.8 0.631 0.246 11.2 0.0276
0.050 21.3 0.516 0.205 11.0 0.0230
0.4 0.20 6.66 1.80 0.655 12.0 0.0736
0.15 8.88 1.24 0.491 11.0 0.0552
0.10 13.3 0.751 0.328 10.0 0.0368
0.090 14.8 0.662 0.295 9.80 0.0331
0.080 16.6 0.577 0.262 9.60 0.0294
0.070 19.0 0.494 0.229 9.40 0.0258
0.060 22.2 0.415 0.197 9.20 0.0221
0.050 26.6 0.338 0.164 9.00 0.0184
0.3 0.15 11.8 0.760 0.368 9.00 0.0414
0.10 17.8 0.451 0.246 8.00 0.0276
0.090 19.7 0.395 0.221 7.80 0.0248
0.080 22.2 0.342 0.197 7.60 0.0221
0.070 25.4 0.292 0.172 7.40 0.0193
0.060 29.6 0.243 0.147 7.20 0.0166

* cm2/Ω = I2 × Ct /p (I = Current, Ct = temperature factor, p = surface load W/cm2)

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