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NCHW2 Nickel Chrome Heating Wire No 2

Good resistant (life) to oxidation at high temperature.
It is suitable for high value electrical resistors and for heating wires.
Good performance in anti-corrosion and cold processing.

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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 ≦1.5 ≧57 15~18   BAL  

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 0.0396 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 0.990 107 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
0.025 ±0.0025 0.0004909 ±13 2282 246931 0.00405

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