Alloy wire for electricity
(Nickel Chrome,Fe-Chrome)
Electric resistance wire
(Copper Nickel,Manganese Nickel)
Pure Nickel Wire
(Wire･Ribbon･Plate･Coil･Foil)
Nickel Alloy
(Wire･Ribbon)
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NCH2　Nickel Chrome Heating Wire Type 2

Code：NCH2 (Nickel Chrome Heating Wire Type 2)

Properties and Applications

Compared to nickel-chrome type 1, it has slightly lower oxidation resistance and high-temperature strength, and is weakly magnetic. Since it has good cold workability and corrosion resistance, it is suitable for electric furnaces, electric heaters, resis

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Product Details

JIS JIS Code Electrical
Resistivity
[μΩm]		 Average TCR
［×10-6/℃］
NCH2 C 2520 1.12±0.05 ＊180
GNC112 C 2532
(＊)Reference value
Cuprous
Electromotive
Force
Μv/K
(0~100℃)		 Thermal
Expansion
Coefficient
×10-6/		 Specific Heat
J/g・K
(20℃)		 Thermal
Conductivity
w/m・K		 Density
g/cm3
(20℃		 Melting Point
℃		 Max
Operating
Temperature
℃
ー0.1 ～ ＋0.3 17.0 0.46 13 8.25 1400 1000
Chemical
Composition		 C Si Mn Ni Cr Fe
(％) ≦0.15 0.75～1.6 ≦1.5 ≧57 15～18 BAL

Resistance increase by temperature

℃ 20 100 200 300 400 500 600 700 800 900 1000
Coefficient 1.000 1.014 1.031 1.048 1.065 1.077 1.083 1.085 1.090 1.095 1.103

NCHW2【Resistance・Length・Weight】

Alloys Type Diameter (mm）
NCHW2 Wire φ6.00～0.030
NCHR2 Ribbon t=2.90~0.08 w=40~0.4 (Depends on thickness)
NCH2P Plate Please consult
NCH2 Foil Please consult

NCHW1【Resistance・Length・Weight】

〔Wire〕
Alloys Electrical
Resistivity
(23℃μΩｍ)
NCHW2 1.12±0.05
Diameter
(mm)		 Tolerance
(mm)		 Cross section
(mm2)		 Resistance Tolerance
(%)		 Resistance Tolerance
(Ω/ｍ)		 Length
(ｍ/Kg)		 Weight
(ｇ/ｍ)
6.00 ±0.080 28.27 ±5 0.0396 4.29 233
5.50 ±0.063 23.76 ±5 0.0471 5.10 196
5.00 ±0.063 19.64 ±5 0.0570 6.17 162
4.50 ±0.063 15.90 ±5 0.0704 7.62 131
4.00 ±0.063 12.57 ±5 0.0891 9.65 104
3.50 ±0.050 9.621 ±5 0.116 12.6 79.4
3.20 ±0.050 8.042 ±5 0.139 15.1 66.4
2.90 ±0.050 6.605 ±5 0.170 18.4 54.5
2.60 ±0.040 5.309 ±5 0.211 22.8 43.8
2.30 ±0.040 4.155 ±5 0.270 29.2 34.3
2.00 ±0.040 3.142 ±5 0.357 38.6 25.9
1.80 ±0.040 2.545 ±5 0.440 47.6 21.0
1.60 ±0.032 2.011 ±5 0.557 60.3 16.6
1.50 ±0.032 1.767 ±5 0.634 68.6 14.6
1.40 ±0.032 1.539 ±5 0.728 78.7 12.7
1.30 ±0.032 1.327 ±5 0.844 91.3 11.0
1.20 ±0.025 1.131 ±5 0.99 107 9.33
1.10 ±0.025 0.9503 ±6 1.18 128 7.84
1.00 ±0.025 0.7854 ±6 1.43 154 6.48
0.90 ±0.025 0.6362 ±6 1.76 191 5.25
0.85 ±0.025 0.5675 ±6 1.97 214 4.68
0.80 ±0.020 0.5027 ±6 2.23 241 4.15
0.75 ±0.020 0.4418 ±6 2.54 274 3.64
0.70 ±0.020 0.3848 ±6 2.91 315 3.17
0.65 ±0.020 0.3318 ±6 3.38 365 2.74
0.60 ±0.020 0.2827 ±6 3.96 429 2.33
0.55 ±0.016 0.2376 ±7 4.71 510 1.96
0.50 ±0.016 0.1964 ±7 5.70 617 1.62
0.45 ±0.016 0.1590 ±7 7.04 762 1.31
0.40 ±0.016 0.1257 ±7 8.91 965 1.04
0.35 ±0.013 0.09621 ±7 11.6 1260 0.79
0.32 ±0.013 0.08042 ±7 13.9 1507 0.66
0.29 ±0.013 0.06605 ±7 17.0 1835 0.54
0.26 ±0.010 0.05309 ±8 21.1 2283 0.438
0.23 ±0.010 0.04155 ±8 27.0 2917 0.343
0.20 ±0.010 0.03142 ±8 35.7 3858 0.259
0.18 ±0.008 0.02545 ±8 44.0 4763 0.210
0.16 ±0.008 0.02011 ±8 55.7 6029 0.166
0.15 ±0.008 0.01767 ±8 63.4 6859 0.146
0.14 ±0.008 0.01539 ±8 72.8 7874 0.127
0.13 ±0.006 0.01327 ±9 84.4 9132 0.110
0.12 ±0.006 0.01131 ±9 99.0 10717 0.0933
0.11 ±0.006 0.009503 ±9 118 12755 0.0784
0.10 ±0.006 0.007854 ±9 143 15433 0.0648
0.09 ±0.006 0.006362 ±10 176 19053 0.0525
0.08 ±0.005 0.005027 ±10 223 24114 0.0415
0.07 ±0.005 0.003848 ±10 291 31496 0.0317
0.06 ±0.004 0.002827 ±11 396 42870 0.0233
0.05 ±0.004 0.001964 ±11 570 61733 0.0162
0.04 ±0.003 0.001257 ±12 891 96457 0.0104
0.03 ±0.003 0.0007069 ±12 1584 171480 0.00583

NCHW2【Temperature Current Characteristics・Diameter・Temperature・Current】

[Unit：Ampere]
Diameter
(mm)		 200
(℃)		 300
(℃)		 400
(℃)		 500
(℃)		 600
(℃)		 700
(℃)		 800
(℃)		 900
(℃)		 1000
(℃)		 1100
(℃)
6.00 53.8 74.9 94.1 114 141 168 202 240 278 312
5.50 47.0 66.2 93.1 101 125 149 182 211 245 278
5.00 41.3 56.6 72.0 86.4 108 130 157 182 211 240
4.50 34.6 48.0 61.4 73.9 90.2 110 134 154 182 206
4.00 29.8 40.3 51.8 62.4 76.8 90.2 108 128 153 173
3.50 24.0 32.6 42.2 50.9 63.4 74.9 92.2 108 125 144
3.20 21.1 28.8 37.4 44.2 54.7 65.3 79.7 94.1 109 125
2.90 18.0 25.0 32.6 38.4 47.0 56.6 69.1 80.6 94.1 107
2.60 14.9 21.1 26.9 32.6 40.3 48.0 59.5 69.1 79.7 89.3
2.30 12.7 17.4 23.0 27.8 33.6 40.3 49.9 57.6 66.2 75.8
2.00 10.6 14.4 19.2 23.0 27.8 33.6 39.4 47.0 53.8 61.4
1.80 9.31 12.7 16.6 20.2 24.0 28.8 31.7 40.3 46.1 52.8
1.60 7.87 10.8 14.4 16.8 20.2 25.0 29.8 33.6 39.4 44.2
1.50 7.30 10.0 13.1 15.4 18.7 22.1 26.9 30.7 35.5 40.3
1.40 6.72 9.12 12.0 14.0 17.3 20.2 25.0 27.8 32.6 37.4
1.30 6.14 8.35 10.8 12.8 15.6 18.2 22.1 25.0 28.8 33.6
1.20 5.66 7.49 10.1 11.3 13.4 15.5 19.2 22.1 25.9 29.8
1.10 4.99 6.72 8.64 10.4 12.5 14.8 17.5 20.2 23.0 25.9
1.00 4.51 5.86 7.68 9.02 11.0 13.0 14.9 16.8 19.2 22.1
0.90 3.94 5.28 6.82 7.87 9.60 11.3 13.4 15.4 17.5 20.2
0.85 3.74 4.90 6.34 7.39 8.93 10.4 12.3 14.2 16.3 18.5
0.80 3.36 4.51 5.86 6.72 8.16 9.60 11.3 13.0 14.9 16.8
0.75 3.17 4.13 5.38 6.24 7.49 8.64 10.3 11.9 13.4 15.4
0.70 2.88 3.74 4.90 5.66 6.82 7.97 9.31 10.6 12.4 14.1
0.65 2.69 3.46 4.51 5.18 6.24 7.20 8.35 9.60 11.1 12.7
0.60 2.40 3.07 4.03 4.61 5.57 6.53 7.49 8.64 9.89 11.5
0.55 2.21 2.78 3.65 4.13 4.99 5.76 6.72 7.68 8.83 10.1
0.50 1.92 2.50 3.26 3.65 4.42 5.09 6.05 6.82 7.87 8.83
0.45 1.73 2.21 2.78 3.17 3.84 4.42 4.99 5.66 6.43 7.30
0.40 1.44 1.82 2.40 2.78 3.26 3.74 4.32 4.99 5.66 6.43
0.35 1.21 1.54 2.02 2.40 2.78 3.17 3.55 4.13 4.61 5.28
0.32 1.08 1.39 1.79 2.11 2.50 2.78 3.26 3.74 4.22 4.70
0.29 0.960 1.25 1.58 1.82 2.21 2.50 2.88 3.26 3.65 4.13
0.26 0.845 1.08 1.39 1.63 1.92 2.21 2.50 2.78 3.17 3.55
0.23 0.730 0.960 1.20 1.39 1.63 1.82 2.11 2.40 2.69 3.07
0.20 0.614 0.806 1.01 1.16 1.36 1.56 1.78 2.02 2.30 2.50
0.18 0.538 0.710 0.883 1.02 1.20 1.36 1.56 1.78 1.92 2.21
0.16 0.470 0.614 0.758 0.874 1.02 1.18 1.34 1.54 1.72 1.90
0.15 0.432 0.566 0.701 0.806 0.941 1.08 1.25 1.40 1.56 1.73
0.14 0.403 0.528 0.643 0.749 0.864 1.01 1.15 1.29 1.44 1.58
0.13 0.365 0.480 0.586 0.682 0.787 0.912 1.05 1.17 1.32 1.44
0.12 0.336 0.442 0.538 0.614 0.710 0.826 0.960 1.06 1.18 1.30
0.11 0.298 0.403 0.480 0.557 0.643 0.739 0.845 0.960 1.06 1.15
0.10 0.269 0.355 0.432 0.499 0.566 0.653 0.749 0.845 0.941 1.03
0.09 0.221 0.298 0.355 0.422 0.490 0.547 0.614 0.739 0.749 0.826
0.08 0.192 0.259 0.307 0.365 0.422 0.470 0.528 0.586 0.643 0.701
0.07 0.163 0.211 0.259 0.307 0.355 0.394 0.442 0.490 0.538 0.586
0.06 0.134 0.182 0.221 0.250 0.288 0.384 0.365 0.403 0.442 0.480
0.05 0.106 0.144 0.173 0.202 0.230 0.259 0.288 0.317 0.346 0.374
0.04 0.077 0.106 0.125 0.144 0.173 0.192 0.211 0.230 0.250 0.278
0.03 0.058 0.067 0.086 0.096 0.115 0.125 0.144 0.154 0.173 0.182
(*)Reference value

NCHR2【Conductor resistance】

[Ribbon]
Alloys Electrical
Resistivity
(23℃μΩｍ)
NCHR2 1.12±0.05
［Unit：Ω/m］
Thickness
(mm)		 Width (mm)
40.0 32.0 25.0 20.0 16.0 13.0 10.0 6.5 5.0 3.2 2.4 1.6 0.8 0.4
2.90 0.00985 0.0123 0.0158 0.0197 0.0246 0.0303 0.0394
2.60 0.011 0.0137 0.0176 0.022 0.0275 0.0338 0.044 0.069
2.30 0.0124 0.0155 0.0199 0.0248 0.0311 0.0382 0.0497 0.078 0.10
2.00 0.0143 0.0179 0.0229 0.0286 0.0357 0.044 0.0571 0.0897 0.117
1.80 0.0159 0.0198 0.0254 0.0317 0.0397 0.0488 0.0635 0.0997 0.13
1.60 0.0179 0.0223 0.0286 0.0357 0.0446 0.0549 0.0714 0.112 0.146
1.40 0.0204 0.0255 0.0327 0.0408 0.051 0.0628 0.0816 0.128 0.167
1.20 0.0238 0.0298 0.0381 0.0476 0.0595 0.0733 0.0952 0.15 0.194
1.00 0.0286 0.0357 0.0457 0.0571 0.0714 0.0879 0.114 0.179 0.233
0.90 0.0397 0.0508 0.0635 0.0794 0.0977 0.127 0.199 0.259 0.405 0.54
0.80 0.0446 0.0571 0.0714 0.0893 0.11 0.143 0.224 0.292 0.456 0.608
0.70 0.0653 0.0816 0.102 0.126 0.163 0.256 0.333 0.521 0.694
0.60 0.0762 0.0952 0.119 0.147 0.19 0.299 0.389 0.608 0.81
0.50 0.0914 0.114 0.143 0.176 0.229 0.359 0.467 0.729 0.972
0.45 0.1020 0.127 0.159 0.195 0.254 0.399 0.52 0.81 1.08 1.62
0.40 0.179 0.22 0.286 0.449 0.583 0.911 1.22 1.82
0.35 0.251 0.327 0.513 0.667 1.04 1.39 2.08
0.32 0.275 0.357 0.561 0.73 1.14 1.52 2.28
0.29 0.394 0.619 0.805 1.26 1.68 2.51 5.03
0.26 0.44 0.69 0.897 1.4 1.87 2.80 5.61 11.2
0.23 0.78 1.01 1.59 2.11 3.17 6.34 12.7
0.20 0.897 1.17 1.82 2.43 3.65 7.29 14.6
0.18 0.997 1.3 2.03 2.70 4.05 8.1 16.2
0.16 2.28 3.04 4.56 9.11 18.2
0.14 2.6 3.47 5.21 10.4 20.8
0.12 4.05 6.08 12.2 24.3
0.10 7.29 14.6 29.2
0.08 9.11 18.2 36.5
*Allowable tolerance of conductor resistance : Width 10mm or more ±7% , Width 10mm or less ±8%

Conductor Resistance Tolerance of Ribbon

Thickness
[mm]		 Width
[mm]		 Resitance Tolerance
[%]
0.08above　3.15below 10below ±8
10above ±7
*We can manufacture products other than the standard (size and tolerance), so please contact us.