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Product Information

NCHW1 Nickel Chrome Heating Wire No 1

Good resistant (life) to oxidation at high temperature.
It is suitable for high value electrical resistors and for heating wires.
NCHW1 is non-magnetic.

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Detail Information

Reference value

Electrical Resistivity
(μΩm)
Temperature Coefficient of Resistance
(×10-6/℃)
Thermal Coefficient of expansion
(×10-6/℃)
Melting Temperature
(℃)
Density
(g・cm3
Max Operating Temperature
(℃)
Type Composition
1.08 140 18.0 1400 8.41 1100 wire ≧77Ni 19-21Cr

Nominal Composition

Si Mn Ni Cr Al Fe others
≦0.15 0.75~1.6 ≦2.5 ≧77 19~21   ≦1  

Resistance ・Length ・Weight

Diameter(mm) Diameter tolerance(mm) cross section(mm2 Resistance
tolerance(%)
Resistance(Ω/m) Length(m/Kg) Weight(g/m)
6.00 ±0.080 28.27 ±5 0.0382 4.21 238
5.50 ±0.063 23.76 ±5 0.0455 5.00 200
5.00 ±0.063 19.64 ±5 0.0550 6.06 165
4.50 ±0.063 15.90 ±5 0.0679 7.48 134
4.00 ±0.063 12.57 ±5 0.0859 9.46 106
3.50 ±0.050 9.621 ±5 0.112 12.4 80.9
3.20 ±0.050 8.042 ±5 0.134 14.8 67.6
2.90 ±0.050 6.605 ±5 0.164 18.0 55.5
2.60 ±0.040 5.309 ±5 0.203 22.4 44.7
2.30 ±0.040 4.155 ±5 0.260 28.6 34.9
2.00 ±0.040 3.142 ±5 0.344 37.8 26.4
1.80 ±0.040 2.545 ±5 0.424 46.7 21.4
1.60 ±0.032 2.011 ±5 0.537 59.1 16.9
1.50 ±0.032 1.767 ±5 0.611 67.3 14.9
1.40 ±0.032 1.539 ±5 0.702 77.2 12.9
1.30 ±0.032 1.327 ±5 0.814 89.6 11.2
1.20 ±0.025 1.131 ±5 0.955 105 9.51
1.10 ±0.025 0.9503 ±6 1.14 125 7.99
1.00 ±0.025 0.7854 ±6 1.38 151 6.61
0.90 ±0.025 0.6362 ±6 1.70 187 5.35
0.85 ±0.025 0.5675 ±6 1.90 210 4.77
0.80 ±0.020 0.5027 ±6 2.15 237 4.23
0.75 ±0.020 0.4418 ±6 2.44 269 3.72
0.70 ±0.020 0.3848 ±6 2.81 309 3.24
0.65 ±0.020 0.3318 ±6 3.25 358 2.79
0.60 ±0.020 0.2827 ±6 3.82 421 2.38
0.55 ±0.016 0.2376 ±7 4.55 500 2.00
0.50 ±0.016 0.1964 ±7 5.50 606 1.65
0.45 ±0.016 0.1590 ±7 6.79 748 1.34
0.40 ±0.016 0.1257 ±7 8.59 946 1.06
0.35 ±0.013 0.09621 ±7 11.2 1236 0.809
0.32 ±0.013 0.08042 ±7 13.4 1478 0.676
0.29 ±0.013 0.06605 ±7 16.4 1800 0.555
0.26 ±0.010 0.05309 ±8 20.3 2240 0.447
0.23 ±0.010 0.04155 ±8 26.0 2862 0.349
0.20 ±0.010 0.03142 ±8 34.4 3785 0.264
0.18 ±0.008 0.02545 ±8 42.4 4673 0.214
0.16 ±0.008 0.02011 ±8 53.7 5914 0.169
0.15 ±0.008 0.01767 ±8 61.1 6729 0.149
0.14 ±0.008 0.01539 ±8 70.2 7724 0.129
0.13 ±0.006 0.01327 ±9 81.4 8958 0.112
0.12 ±0.006 0.01131 ±9 95.5 10514 0.0951
0.11 ±0.006 0.009503 ±9 114 12512 0.0799
0.10 ±0.006 0.007854 ±9 138 15140 0.0661
0.09 ±0.006 0.006362 ±10 170 18691 0.0535
0.08 ±0.005 0.005027 ±10 215 23656 0.0423
0.07 ±0.005 0.003848 ±10 281 30897 0.0324
0.06 ±0.004 0.002827 ±11 382 42054 0.0238
0.05 ±0.004 0.001964 ±11 550 60558 0.0165
0.04 ±0.003 0.001257 ±12 859 94622 0.0106
0.03 ±0.003 0.0007069 ±12 1528 168217 0.00594
0.025 ±0.0025 0.0004909 ±13 2200 242233 0.00413

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