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Product Details:
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| Size:: | 5-80mm | Surface: | Bright |
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| Purity: | 80%Ni | Sample: | Free |
| Material: | Ni80Cr20 | ||
| Highlight: | nickel alloys,nichrome wire |
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Introduction:
Ni80Cr20 is an 80% Ni, 20%Cr alloy which is marketed in heavier sizes as resistance heating wires. Ni80Cr20 has a relatively high resistivity 1.09 ohm mm2m-1 sand a moderate temperature coefficient value.The maximum working temperature in air is +600 ℃ and +1 200 ℃ when used for heating wires,when used for heating wires, oxidized wires display better insulation properties than other alloy of this kind.
Equal Grade:
Chromel A, Nikrothal 80, N8, Nichrome V, HAI-NiCr 80, Tophet A, Resistohm80, Cronix 80, Protoloy, Nikrothal 8, Alloy A, MWS-650, Stablohm 650,NCHW1
Chemical Content, %
| Ni | Cr | Si | Al | Fe | Other | |
| Nominal | Bal. | |||||
| Min | 20.0 | 0.75 | - | - | ||
| Max | 23.0 | 1.60 | 0.50 | 1.0 | - |
Mechanical Properties
| Properties/Grade | Cr20Ni80 | Cr30Ni70 | Cr15Ni60 | Cr20Ni35 | Cr20Ni30 | |
| Main Chemical composition | Ni | Rest | Rest | 55.0-61.0 | 34.0-37.0 | 30.0-34.0 |
| Cr | 20.0-23.0 | 28.0-31.0 | 15.0-18.0 | 18.0-21.0 | 18.0-21.0 | |
| Fe | ≤1.0 | ≤1.0 | Rest | Rest | Rest | |
|
Max. continuous service temp. Of element |
1200 | 1250 | 1150 | 1100 | 1100 | |
| Resistivity at 20oC (μΩ·m) | 1.09 | 1.18 | 1.12 | 1.04 | 1.04 | |
| Density (g/cm3) | 8.40 | 8.10 | 8.20 | 7.90 | 7.90 | |
| Thermal conductivity(KJ/m·h·oC) | 60.3 | 45.2 | 45.2 | 43.8 | 43.8 | |
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Coefficient of lines expansion (α×10-6/oC) |
18.0 | 17.0 | 17.0 | 19.0 | 19.0 | |
| Melting point (approx.)( oC) | 1400 | 1380 | 1390 | 1390 | 1390 | |
| Elongation at rupture (%) | >20 | >20 | >20 | >20 | >20 | |
| Micrographic structure | austenite | austenite | austenite | austenite | austenite | |
| Magnetic properties | nonmagnetic | nonmagnetic | nonmagnetic | nonmagnetic | nonmagnetic | |
Applications:
Wire wound resistor
lead wires
Potentiometers
Pressure transducers
Detonators
Strings in musical instruments
Ceramic resistors where gas free oxidation is required.
Heating elements
Electric furnaces, high temperature elements, heating batteries
Resistor
Data Sheet
|
Diameter mm |
Resistance At 20℃Ω/m |
cm²/Ω 20℃ |
Weight g/m | Surface area cm²/m | Cross section area mm² |
| 10.00 | 0.0139 | 22615 | 659.4 | 314.0218 | 78.5000 |
| 9.00 | 0.0171 | 16487 | 534.1 | 282.6218 | 63.5850 |
| 8.00 | 0.0217 | 11579 | 422.0 | 251.2218 | 50.2400 |
| 7.50 | 0.0247 | 9541 | 370.9 | 235.5218 | 44.1563 |
| 7.00 | 0.0283 | 7757 | 323.1 | 219.8218 | 38.4650 |
| 6.50 | 0.0329 | 6211 | 278.6 | 204.1218 | 33.1663 |
| 6.00 | 0.0386 | 4885 | 237.4 | 188.4218 | 28.2600 |
| 5.50 | 0.0459 | 3763 | 199.5 | 172.7218 | 23.7463 |
| 5.00 | 0.0555 | 2827 | 164.9 | 157.0218 | 19.6250 |
| 4.80 | 0.0603 | 2501 | 151.9 | 150.7418 | 18.0864 |
| 4.50 | 0.0686 | 2061 | 133.5 | 141.3218 | 15.8963 |
| 4.00 | 0.0868 | 1448 | 105.5 | 125.6218 | 12.5600 |
| 3.80 | 0.0962 | 1241 | 95.2174 | 119.3418 | 11.3354 |
| 3.50 | 0.1133 | 969.7573 | 80.7765 | 109.9218 | 9.6163 |
| 3.20 | 0.1356 | 741.1685 | 67.5226 | 100.5018 | 8.0384 |
| 3.00 | 0.1543 | 610.7129 | 59.3460 | 94.2218 | 7.0650 |
| 2.80 | 0.1771 | 496.5404 | 51.6970 | 87.9418 | 6.1544 |
| 2.50 | 0.2222 | 353.4381 | 41.2125 | 78.5218 | 4.9063 |
| 2.20 | 0.2869 | 240.8673 | 31.9150 | 69.1018 | 3.7994 |
| 2.00 | 0.3471 | 180.9729 | 26.3760 | 62.8218 | 3.1400 |
| 1.90 | 0.3846 | 155.1645 | 23.8043 | 59.6818 | 2.8339 |
| 1.80 | 0.4286 | 131.9343 | 21.3646 | 56.5418 | 2.5434 |
| 1.70 | 0.4805 | 111.1468 | 19.0567 | 53.4018 | 2.2687 |
| 1.60 | 0.5424 | 92.6662 | 16.8806 | 50.2618 | 2.0096 |
| 1.50 | 0.6171 | 76.3568 | 14.8365 | 47.1218 | 1.7663 |
| 1.40 | 0.7084 | 62.0829 | 12.9242 | 43.9818 | 1.5386 |
| 1.30 | 0.8216 | 49.7090 | 11.1439 | 40.8418 | 1.3267 |
| 1.20 | 0.9643 | 39.0992 | 9.4954 | 37.7018 | 1.1304 |
| 1.10 | 1.1475 | 30.1179 | 7.9787 | 34.5618 | 0.9499 |
| 1.00 | 1.3885 | 22.6295 | 6.5940 | 31.4218 | 0.7850 |
| 0.95 | 1.5385 | 19.4026 | 5.9511 | 29.8518 | 0.7085 |
| 0.90 | 1.7142 | 16.4981 | 5.3411 | 28.2818 | 0.6359 |
| 0.85 | 1.9218 | 13.8990 | 4.7642 | 26.7118 | 0.5672 |
| 0.80 | 2.1696 | 11.5883 | 4.2202 | 25.1418 | 0.5024 |
| 0.75 | 2.4685 | 9.5490 | 3.7091 | 23.5718 | 0.4416 |
| 0.70 | 2.8337 | 7.7642 | 3.2311 | 22.0018 | 0.3847 |
| 0.65 | 3.2865 | 6.2169 | 2.7860 | 20.4318 | 0.3317 |
| 0.60 | 3.8570 | 4.8902 | 2.3738 | 18.8618 | 0.2826 |
| 0.55 | 4.5902 | 3.7671 | 1.9947 | 17.2918 | 0.2375 |
| 0.50 | 5.5541 | 2.8306 | 1.6485 | 15.7218 | 0.1963 |
| 0.48 | 6.0266 | 2.5045 | 1.5193 | 15.0938 | 0.1809 |
| 0.45 | 6.8570 | 2.0639 | 1.3353 | 14.1518 | 0.1590 |
| 0.42 | 7.8715 | 1.6782 | 1.1632 | 13.2098 | 0.1385 |
| 0.40 | 8.6783 | 1.4498 | 1.0550 | 12.5818 | 0.1256 |
| 0.38 | 9.6159 | 1.2431 | 0.9522 | 11.9538 | 0.1134 |
| 0.35 | 11.3350 | 0.9715 | 0.8078 | 11.0118 | 0.0962 |
| 0.32 | 13.5599 | 0.7426 | 0.6752 | 10.0698 | 0.0804 |
| 0.30 | 15.4282 | 0.6120 | 0.5935 | 9.4418 | 0.0707 |
| 0.28 | 17.7109 | 0.4976 | 0.5170 | 8.8138 | 0.0615 |
| 0.26 | 20.5405 | 0.3985 | 0.4458 | 8.1858 | 0.0531 |
| 0.25 | 22.2166 | 0.3543 | 0.4121 | 7.8718 | 0.0491 |
| 0.24 | 24.1065 | 0.3135 | 0.3798 | 7.5578 | 0.0452 |
| 0.23 | 26.2483 | 0.2760 | 0.3488 | 7.2438 | 0.0415 |
| 0.22 | 28.6887 | 0.2416 | 0.3191 | 6.9298 | 0.0380 |
| 0.21 | 31.4861 | 0.2101 | 0.2908 | 6.6158 | 0.0346 |
| 0.20 | 34.7134 | 0.1815 | 0.2638 | 6.3018 | 0.0314 |
| 0.19 | 38.4636 | 0.1557 | 0.2380 | 5.9878 | 0.0283 |
| 0.18 | 42.8560 | 0.1324 | 0.2136 | 5.6738 | 0.0254 |
| 0.17 | 48.0462 | 0.1116 | 0.1906 | 5.3598 | 0.0227 |
| 0.16 | 54.2396 | 0.0930 | 0.1688 | 5.0458 | 0.0201 |
| 0.15 | 61.7127 | 0.0767 | 0.1484 | 4.7318 | 0.0177 |
| 0.14 | 70.8436 | 0.0624 | 0.1292 | 4.4178 | 0.0154 |
| 0.13 | 82.1618 | 0.0499 | 0.1114 | 4.1038 | 0.0133 |
| 0.12 | 96.4260 | 0.0393 | 0.0950 | 3.7898 | 0.0113 |
| 0.11 | 114.7550 | 0.0303 | 0.0798 | 3.4758 | 0.0095 |
| 0.10 | 139 | 0.0228 | 0.0659 | 3.1618 | 0.0079 |
| 0.09 | 171 | 0.0166 | 0.0534 | 2.8478 | 0.0064 |
| 0.08 | 217 | 0.0117 | 0.0422 | 2.5338 | 0.0050 |
| 0.07 | 283 | 0.0078 | 0.0323 | 2.2198 | 0.0038 |
| 0.06 | 386 | 0.0049 | 0.0237 | 1.9058 | 0.0028 |
| 0.05 | 555 | 0.0029 | 0.0165 | 1.5918 | 0.0020 |
| 0.04 | 868 | 0.0015 | 0.0106 | 1.2778 | 0.0013 |
| 0.03 | 1543 | 0.0006 | 0.0059 | 0.9638 | 0.0007 |
| 0.02 | 3471 | 0.0002 | 0.0026 | 0.6498 | 0.0003 |
| 0.01 | 13885 | 0.0000 | 0.0007 | 0.3358 | 0.0001 |
Contact Person: Mr. Martin Lee
Tel: +86 150 0000 2421
Fax: 86-21-56116916
