F1 6J8 Manganin Wire Resistance Heating Wire for Precision Engineering
F1 6J8 Manganin Wire Resistance Heating Wire for Precision Engineering
6J8 Manganin is a type of manganin alloy, known for its stable electrical resistance and low temperature coefficient of resistance (TCR), making it ideal for precision applications in electrical and electronic systems.
In summary, 6J8 Manganin is an alloy known for its excellent electrical stability, low TCR, and mechanical strength, making it ideal for use in high-precision electrical and electronic applications, especially where temperature stability is critical.
Chemical composition
| Name | Type | Main chemical composition % | |||
| Cu | Mn | Ni | Si | ||
| Manganin | 6J12 | Rest | 11~13 | 2~3 | / |
| F1 Manganin | 6J8 | Rest | 8~10 | / | 1~2 |
| F2 Manganin | 6J13 | Rest | 11~13 | 2~5 | / |
Volume resistivity for wires, sheet and ribbons
| Name | Type | Volume resistivity (μΩ·m) |
| Manganin | 6J12 | 0.47±0.03 |
| F1 Manganin | 6J8 | 0.35±0.05 |
| F2 Manganin | 6J13 | 0.44±0.04 |
Average resistance-temperature coefficient of Constantan
| Name | Application temperature | Test temperature | Resistance-temperature coefficient | Average resistance-temperature coefficient | ||
| α×10-6 ℃-1 | β×10-6 ℃-1 | α×10-6 ℃-1 | ||||
| Manganin wire, sheet | Level 1 | 5~45 | 10, 20, 40 | -3~+5 | -0.7~0 | / |
| Level 2 | -5~+10 | |||||
| Level 3 | -10~+5 | |||||
| F1 Manganin wire, sheet | 10~80 | 10, 20, 40 | -5~+10 | -0.25~0 | / | |
| F2 Manganin wire, sheet | 10~80 | 0~+40 | -0.7~1 | / | ||
Elongation rate
| Dia.(mm) | Elongation rate (Lo=200mm), % |
| 0.05 | 6 |
| >0.05~0.10 | 8 |
| >0.10~0.50 | 12 |
| >0.50 | 15 |
Thermal EMF rate for copper
| Name | Type | Temperature | Average thermal EMF rate for copper |
| Manganin | 6J12 | 0~100 | 1 |
| F1 Manganin | 6J8 | 0~100 | 2 |
| F2 Manganin | 6J13 | 0~100 | 3 |
| Note: Thermal EMF rate for copper is absolute value | |||
The net weight per spool
| Dia(mm) | Net weight (g) | Dia(mm) | Net weight (g) |
| 0.02~0.025 | 5 | >0.28~0.45 | 300 |
| >0.025~0.03 | 10 | >0.45~0.63 | 400 |
| >0.03~0.04 | 15 | >0.63~0.75 | 700 |
| >0.04~0.06 | 30 | >0.75~1.18 | 1200 |
| >0.06~0.08 | 60 | >1.18~2.50 | 2000 |
| >0.08~0.15 | 80 | >2.50~3.00 | 3000 |
| >0.15~0.28 | 150 |
Manganin(6J12) Technical data of wires
| Dia. (mm) | Cross-sectional area (mm²) | Weight/Meter (g/m) | Resistance/Meter at 20℃ (Ω/m) | Dia. (mm) | Cross-sectional area (mm²) | Weight/Meter (g/m) | Resistance/Meter at 20℃ (Ω/m) |
| 0.020 | 0.000314 | 0.00265 | 1346-1646 | 0.224 | 0.03941 | 0.3326 | 11.2-12.6 |
| 0.022 | 0.000318 | 0.00321 | 1113-1360 | 0.250 | 0.04909 | 0.414 | 9.00-10.15 |
| 0.025 | 0.000491 | 0.00414 | 862-1053 | 0.280 | 0.06158 | 0.5197 | 7.17-8.09 |
| 0.028 | 0.000616 | 0.0052 | 687-840 | 0.315 | 0.07793 | 0.6577 | 5.73-6.33 |
| 0.032 | 0.000804 | 0.00679 | 583-631 | 0.355 | 0.9898 | 0.8354 | 4.51-4.99 |
| 0.036 | 0.001018 | 0.00859 | 452-499 | 0.400 | 0.1257 | 1.061 | 3.55-3.93 |
| 0.040 | 0.001257 | 0.01061 | 344-404 | 0.450 | 0.159 | 1.342 | 2.81-3.10 |
| 0.045 | 0.001509 | 0.01342 | 272-319 | 0.500 | 0.1963 | 1.657 | 2.27-2.51 |
| 0.050 | 0.001963 | 0.01657 | 220-259 | 0.560 | 0.2463 | 2.08 | 1.83-1.98 |
| 0.056 | 0.002463 | 0.02079 | 176-206 | 0.630 | 0.3117 | 2.63 | 1.45-1.57 |
| 0.063 | 0.003117 | 0.02631 | 139-163 | 0.710 | 0.3959 | 3.34 | 1.14-1.23 |
| 0.071 | 0.003959 | 0.03341 | 109-128 | 0.750 | 0.4418 | 3.73 | 1.02-1.11 |
| 0.080 | 0.005027 | 0.04243 | 86.0-101.0 | 0.800 | 0.5027 | 4.24 | 0.898-0.972 |
| 0.090 | 0.006362 | 0.0537 | 68.0-79.80 | 0.850 | 0.5674 | 4.79 | 0.795-0.861 |
| 0.100 | 0.007854 | 0.0663 | 55.1-64.6 | 0.900 | 0.6362 | 5.37 | 0.709-0.768 |
| 0.112 | 0.009852 | 0.08315 | 44.4-51.0 | 0.950 | 0.7088 | 5.98 | 0.637-0.690 |
| 0.125 | 0.01227 | 0.1036 | 35.6-41.0 | 1.000 | 0.7854 | 6.63 | 0.574-0.622 |
| 0.140 | 0.01539 | 0.1299 | 28.4-32.7 | 1.060 | 0.8825 | 7.45 | 0.511-0.554 |
| 0.150 | 0.01767 | 0.1491 | 24.7-28.5 | 1.120 | 0.9852 | 8.32 | 0.458-0.496 |
| 0.160 | 0.02011 | 0.1697 | 21.7-25.0 | 1.180 | 1.094 | 9.23 | 0.413-0.447 |
| 0.170 | 0.02270 | 0.1916 | 19.3-22.2 | 1.250 | 1.227 | 10.36 | 0.368-0.398 |
| 0.180 | 0.02545 | 0.2148 | 17.2-19.8 | 1.320 | 1.368 | 11.55 | 0.330-0.357 |
| 0.190 | 0.02835 | 0.239 | 15.4-17.7 | 1.400 | 1.539 | 12.99 | 0.293-0.318 |
| 0.200 | 0.03142 | 0.2652 | 14.1-15.9 | 1.500 | 1.767 | 14.91 | 0.255-0.277 |
| 0.212 | 0.03530 | 0.2979 | 12.5-14.1 | 1.600 | 2.011 | 16.97 | 0.224-0.243 |
Constantan&Manganin wire data table
| Dia.(mm) | Sectional area nominal value(mm2) | Resistance per meter (Ω/m) | ||||||||
| 6J12X | 6J8X | 6J13X | 6J40X | |||||||
|
Nominal value (mm) |
Tolerance | Nominal value (Ω/m) | Tolerance | Nominal value (Ω/m) | Tolerance | Nominal value (Ω/m) | Tolerance | Nominal value (Ω/m) | Tolerance | |
| 0.020 | ±0.002 | 0.000314 | 1496 | ±10% | 1528 | ±10% | ||||
| 0.022 | 0.000380 | 1236 | 1263 | |||||||
| 0.025 | 0.000491 | 957 | 978 | |||||||
| 0.028 | 0.000616 | 763 | 780 | |||||||
| 0.032 | ±0.003 | 0.000804 | 584 | ±8% | ±8% | ±8% | 597 | ±8% | ||
| 0.036 | 0.001018 | 462 | 472 | |||||||
| 0.040 | 0.001257 | 374 | 382 | |||||||
| 0.045 | 0.001590 | 296 | 302 | |||||||
| 0.050 | 0.001963 | 239 | 244 | |||||||
| 0.056 | 0.002463 | 191 | 195 | |||||||
| 0.063 | 0.003117 | 151 | 154 | |||||||
| 0.071 | 0.003959 | 119 | 121 | |||||||
| 0.080 | 0.005027 | 93.5 | 69.6 | 87.5 | 95.5 | |||||
| 0.090 | 0.006362 | 73.9 | 55.0 | 69.2 | 75.5 | |||||
| 0.100 | 0.007854 | 59.8 | 44.6 | 56.0 | 61.1 | |||||
| 0.112 | ±0.005 | 0.009852 | 47.7 | ±7% | 35.5 | ±7% | 44.7 | ±7% | 48.7 | ±7% |
| 0.125 | 0.01227 | 38.3 | 28.5 | 35.9 | 39.1 | |||||
| 0.140 | 0.01539 | 30.5 | 22.7 | 28.6 | 31.2 | |||||
| 0.160 | 0.02011 | 23.4 | 17.4 | 21.9 | 23.9 | |||||
| 0.180 | 0.02545 | 18.5 | 13.8 | 17.3 | 18.9 | |||||
| 0.200 | ±0.005 | 0.03142 | 15.0 | ±6% | 11.1 | ±6% | 14.0 | ±6% | 15.3 | ±6% |
| 0.224 | 0.03941 | 11.9 | 8.88 | 11.2 | 12.2 | |||||
| 0.250 | 0.04909 | 9.57 | 7.13 | 8.96 | 9.78 | |||||
| 0.280 | 0.06158 | 7.63 | 5.68 | 7.15 | 7.80 | |||||
| 0.315 | ±0.010 | 0.007793 | 6.03 | ±5% | 4.49 | ±5% | 5.65 | ±5% | 6.16 | ±5% |
| 0.355 | 0.09898 | 4.75 | 3.54 | 4.45 | 4.85 | |||||
| 0.400 | 0.1257 | 3.74 | 2.79 | 3.50 | 3.82 | |||||
| 0.450 | 0.1590 | 2.96 | 2.20 | 2.77 | 3.02 | |||||
| 0.500 | ±0.015 | 0.1963 | 2.39 | ±4% | 1.78 | ±4% | 2.24 | ±4% | 2.44 | ±4% |
| 0.560 | 0.2463 | 1.91 | 1.42 | 1.79 | 1.95 | |||||
| 0.630 | 0.3117 | 1.51 | 1.12 | 1.41 | 1.51 | |||||
| 0.710 | 0.3959 | 1.19 | 0.884 | 1.11 | 1.21 | |||||
| 0.750 | 0.4418 | 1.06 | 0.792 | 1.00 | 1.09 | |||||
| 0.800 | 0.5027 | 0.935 | 0.696 | 0.875 | 0.955 | |||||
| 0.850 | 0.5674 | 0.828 | 0.617 | 0.775 | 0.846 | |||||
| 0.900 | 0.6362 | 0.739 | 0.550 | 0.692 | 0.755 | |||||
| 0.950 | 0.7088 | 0.663 | 0.494 | 0.621 | 0.677 | |||||
| 1.000 | 0.7854 | 0.598 | 0.446 | 0.560 | 0.611 | |||||
| 1.060 | ±0.020 | 0.8852 | 0.533 | ±4% | 0.397 | ±4% | 0.499 | ±4% | 0.544 | ±4% |
| 1.120 | 0.9852 | 0.477 | 0.355 | 0.447 | 0.487 | |||||
| 1.180 | 1.094 | 0.430 | 0.320 | 0.402 | 0.439 | |||||
| 1.250 | 1.227 | 0.383 | 0.285 | 0.359 | 0.391 | |||||
| 1.320 | 1.368 | 0.343 | 0.256 | 0.322 | 0.351 | |||||
| 1.400 | 1.539 | 0.305 | 0.227 | 0.286 | 0.312 | |||||
| 1.500 | 1.767 | 0.266 | 0.198 | 0.249 | 0.272 | |||||
| 1.600 | 2.011 | 0.234 | 0.174 | 0.219 | 0.239 | |||||
| 1.700 | ±0.025 | 2.270 | 0.207 | ±4% | 0.154 | ±4% | 0.194 | ±4% | 0.211 | ±4% |
| 1.800 | 2.545 | 0.185 | 0.138 | 0.173 | 0.189 | |||||
| 1.900 | 2.835 | 0.166 | 0.123 | 0.155 | 0.169 | |||||
| 2.000 | 3.142 | 0.15 | 0.111 | 0.140 | 0.153 | |||||
| 2.120 | 3.530 | 0.133 | 0.0992 | 0.125 | 0.136 | |||||
| 2.240 | ±0.030 | 3.941 | 0.119 | ±4% | 0.0888 | ±4% | 0.112 | ±4% | 0.122 | ±4% |
| 2.360 | 4.374 | 0.107 | 0.0800 | 0.101 | 0.110 | |||||
| 2.500 | 4.909 | 0.0957 | 0.0713 | 0.0896 | 0.0978 | |||||
| 2.650 | 5.515 | 0.0852 | 0.0635 | 0.0798 | 0.0870 | |||||
| 2.800 | 6.158 | 0.0763 | 0.0568 | 0.0715 | 0.0780 | |||||
| 3.000 | 7.069 | 0.0665 | 0.0495 | 0.0622 | 0.0679 | |||||
| 3.150 | ±0.035 | 7.793 | 0.0603 | ±4% | 0.0449 | ±4% | 0.0565 | ±4% | 0.0616 | ±4% |
| 3.350 | 8.814 | 0.0533 | 0.0397 | 0.0499 | 0.0545 | |||||
| 3.550 | 9.898 | 0.0475 | 0.0354 | 0.0445 | 0.0485 | |||||
| 3.750 | 11.04 | 0.0426 | 0.0317 | 0.0398 | 0.0435 | |||||
| 4.000 | 12.57 | 0.0374 | 0.0279 | 0.0350 | 0.0382 | |||||
| 4.250 | 14.19 | 0.0331 | 0.0247 | 0.0310 | 0.0338 | |||||
| 4.500 | 15.90 | 0.0296 | 0.0220 | 0.0277 | 0.0302 | |||||
| 4.750 | ±0.040 | 17.72 | 0.0265 | ±4% | 0.0198 | ±4% | 0.0248 | ±4% | 0.0271 | ±4% |
| 5.000 | 19.63 | 0.0239 | 0.0178 | 0.0224 | 0.0244 | |||||
| 5.300 | ±0.050 | 22.06 | 0.0213 | ±4% | 0.0159 | ±4% | 0.0199 | ±4% | 0.0218 | ±4% |
| 5.600 | 24.63 | 0.0191 | 0.0142 | 0.0179 | 0.0195 | |||||
| 6.000 | ±0.060 | 28.27 | 0.0166 | ±4% | 0.0124 | ±4% | 0.0156 | ±4% | 0.017 | ±4% |
| 6.300 | 31.17 | 0.0151 | 0.0112 | 0.0141 | 0.0154 | |||||
Sheet size
| Thickness(mm) | Tolerance | Width(mm) | Tolerance |
| 0.1 | ±0.010 | 50 75 100 |
Width<100mm, ±1 Width≥100mm, ±1.5 |
| 0.112 | |||
| 0.125 | |||
| 0.140 | |||
| 0.160 | |||
| 0.180 | ±0.0100-0.020 | ||
| 0.200 | |||
| 0.224 | |||
| 0.250 | |||
| 0.280 | |||
| 0.315 | |||
| 0.355 | |||
| 0.400 | ±0.020 | 50 75 100 125 150 175 |
|
| 0.450 | |||
| 0.500 | |||
| 0.560 | ±0.020-0.030 | ||
| 0.630 | |||
| 0.710 | |||
| 0.800 | ±0.030 | ||
| 0.900 | |||
| 1.000 | ±0.040 | ||
| 1.120 | |||
| 1.250 | |||
| 1.400 | ±0.050 | ||
| 1.600 | |||
| 1.800 | ±0.060 | ||
| 2.000 |
Manganin strip table, Cross-sectional area(mm2)
| Width(mm) Thickness(mm) |
6.3 | 8.0 | 10.0 | 12.5 | 16.0 | 20.0 | 25.0 | 31.5 | 40.0 | |
| ±0.3 | ±0.3 | ±0.3 | ±0.4 | ±0.4 | ±0.5 | ±0.5 | ±0.6 | ±0.7 | ||
| 0.180 | ±0.010 | 1.066 | ||||||||
| 0.200 | 1.184 | |||||||||
| 0.224 | 1.327 | 1.684 | ||||||||
| 0.250 | +0.01 -0.02 |
1.481 | 1.880 | 2.450 | ||||||
| 0.280 | 1.658 | 2.106 | 2.744 | |||||||
| 0.315 | 1.865 | 2.369 | 3.087 | 3.859 | ||||||
| 0.355 | 2.102 | 2.670 | 3.479 | 4.349 | ||||||
| 0.400 | ±0.020 | 2.369 | 3.008 | 3.920 | 4.900 | 6.272 | ||||
| 0.450 | 2.665 | 3.384 | 4.410 | 5.513 | 7.056 | 8.820 | 11.03 | |||
| 0.500 | 2.961 | 3.760 | 4.900 | 6.125 | 7.840 | 9.800 | 12.25 | |||
| 0.560 | +0.020 -0.030 |
3.316 | 4.211 | 5.488 | 6.860 | 8.781 | 10.98 | 13.72 | ||
| 0.630 | 3.731 | 4.738 | 6.174 | 7.718 | 9.878 | 12.35 | 15.44 | |||
| 0.710 | 4.205 | 5.339 | 6.958 | 8.698 | 11.13 | 13.92 | 17.40 | |||
| 0.800 | ±0.030 | 4.738 | 6.016 | 7.840 | 9.800 | 12.54 | 15.68 | 19.60 | 24.70 | 31.36 |
| 0.900 | 5.33 | 6.768 | 8.820 | 11.03 | 14.11 | 17.64 | 22.05 | 27.78 | 35.28 | |
| 1.000 | ±0.040 | 5.922 | 7.520 | 9.800 | 12.25 | 15.68 | 19.60 | 24.50 | 30.87 | 39.20 |
| 1.120 | 6.633 | 8.422 | 10.98 | 13.72 | 17.56 | 21.95 | 27.44 | 34.57 | 43.90 | |
| 1.250 | 7.403 | 9.400 | 12.25 | 15.31 | 19.60 | 24.50 | 30.63 | 38.59 | 49.00 | |
| 1.400 | ±0.050 | 8.291 | 10.53 | 13.72 | 17.15 | 21.95 | 27.44 | 34.30 | 43.22 | 54.88 |
| 1.600 | 9.475 | 12.03 | 15.68 | 19.60 | 25.09 | 31.36 | 39.20 | 49.39 | 62.72 | |
| 1.800 | ±0.060 | 10.66 | 13.54 | 17.64 | 22.05 | 28.22 | 35.28 | 44.10 | 55.57 | 70.56 |
| 2.000 | 11.84 | 15.04 | 19.60 | 24.50 | 31.36 | 39.20 | 49.00 | 61.74 | 78.40 | |
| Note : The effective cross-sectional area of strip is the product of its width and thickness multiplies the following coefficient: Width<10mm, multiplied by 0.98; Width≥10mm, multiplied by 0.94. |
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Some key features of 6J8 include:
- Electrical Resistivity:
6J8 Manganin has high resistivity, making it suitable for use in resistors and current sensing devices.
- Low Temperature Coefficient of Resistance (TCR):
It has a very low TCR, meaning its resistance does not change significantly with temperature fluctuations, which is crucial for precise measurements.
- Thermal Stability:
The alloy is stable over a wide temperature range, offering consistent performance in varying thermal conditions.
- Corrosion Resistance:
6J8 Manganin is resistant to oxidation and corrosion, ensuring long-term durability, especially in harsh environments.
- Mechanical Strength:
It is known for good tensile strength and can be drawn into fine wires for precise applications.
Application
- Precision Resistors: Used in standard resistors for calibration and measurement purposes.
- Current Shunts: Employed in measuring high currents with high precision.
- Measuring Instruments: Commonly used in devices like multimeters and other precision measurement tools.
- Thermal Devices: Applied in temperature compensation devices and thermostats
Advantages:
- Long-Term Stability:
The alloy maintains its properties over extended periods, even in changing environmental conditions.
- High-Precision Performance:
It offers low electrical noise and high stability, which is crucial for precision instruments and industrial applications.
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