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6J8/6J8P/6J8X Precision Resistance Wire Accurate And Performance In Scientific Industrial And High-Tech Fields
6J8/6J8P/6J8X Precision Resistance Wire Accurate And Performance In Scientific Industrial And High-Tech Fields
6J8/6J8P/6J8X Precision Resistance Wire Accurate And Performance In Scientific Industrial And High-Tech Fields
6J8/6J8P/6J8X Precision Resistance Wire Accurate And Performance In Scientific Industrial And High-Tech Fields
6J8/6J8P/6J8X Precision Resistance Wire Accurate And Performance In Scientific Industrial And High-Tech Fields
6J8/6J8P/6J8X Precision Resistance Wire Accurate And Performance In Scientific Industrial And High-Tech Fields
Specifications
Brand Name :
Senphus
Model Number :
6J8/6J8P/6J8X
Certification :
ISO9001
Place of Origin :
China
MOQ :
5kg
Payment Terms :
T/T, D/P
Supply Ability :
30 Tons per day
Delivery Time :
3 days
Packaging Details :
Packed with waterproof paper or weave bag, into pallets or wooden case. Special packaging requirements can also be accommodated.
Place of Orig :
Jiangsu, China
Type :
F1 Manganin
Application :
Resistance elements and shunt resistors in precision instruments
Color :
Brassy yellow
Product name :
6J8 F1 Manganin wire
Volume resistivity (μΩ·m) :
0.35±0.05
Application temperature :
10~80
Resistance-temperature coefficient （β×10-6 ℃-1） :
-0.25~0
Thermal EMF rate for copper :
2
Description

6J8/6J8P/6J8X Precision Resistance Wire Accurate and Performance in Scientific Industrial and High-Tech Fields

The 6J8 alloy is generally a manganin-type alloy, primarily made of Copper (Cu), Nickel (Ni), and Manganese (Mn). This composition gives the wire a very low temperature coefficient of resistance (TCR), meaning its resistance remains stable across a wide temperature range.

6J8/6J8P/6J8X Precision Resistance Wire is a high-performance material, especially designed for applications where stability, accuracy, and reliability are paramount. With its low temperature coefficient, high durability, and excellent resistance to oxidation, this wire is widely used in precision resistors, current sensing devices, temperature-compensated circuits, and other high-precision electronic applications. Its variants (P and X) offer further enhancements to suit specific industrial or scientific requirements.

6J8: This is the base alloy, offering stable electrical properties suitable for most precision applications.

6J8P: The "P" variant may denote a specific processing or treatment to enhance the wire’s properties, such as improved surface finish or resistance to oxidation.

6J8X: The "X" may indicate further refinement or a special feature, such as enhanced thermal stability or extra flexibility for specific applications.

Chemical Composition Wt.%

6J8 F1 Manganin

 % Si Cu Mn
Min 1 8
Max 2 Rest 10

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.

Some key features of 6J8 include:

  • Stable Resistance:

6J8 Precision Resistance Wire is known for its stable electrical resistance, even under varying environmental conditions. This makes it suitable for highly accurate measuring instruments and calibration resistors.

  • Low Temperature Coefficient of Resistance (TCR):

The alloy has a low TCR, meaning its resistance changes very little with temperature fluctuations, which is critical for precision applications in fields like metrology and electrical testing.

  • Thermal Stability:

It can operate effectively over a wide range of temperatures, making it ideal for high-precision applications in temperature-compensated circuits or high-temperature environments.

  • Corrosion Resistance:

6J8 wire is resistant to oxidation and corrosion, allowing it to maintain its performance over time, even in challenging environments like industrial or outdoor settings.

  • Mechanical Strength:

The wire is strong and durable, with good tensile strength, making it suitable for applications where the wire might be subjected to mechanical stress or need to be drawn into thin, flexible forms.

Application:

  • Precision Resistors:

Used in the construction of high-accuracy resistors for industrial, laboratory, and commercial use, particularly in calibration standards and measurement instruments.

  • Current Sensing and Shunt Resistors:

Employed in current sensing applications, where precise measurements of current are required without significantly affecting the circuit's operation. Shunt resistors made from 6J8 wire are widely used in ammeters and power supplies.

  • Temperature Compensation:

The low TCR makes it ideal for use in temperature-compensated circuits, where resistance stability is essential for accuracy under varying temperatures.

  • High-Precision Electrical Components:

Used in the manufacturing of thermistors, thermistor probes, and other temperature-sensitive components in which the resistance must remain stable regardless of ambient temperature changes.

  • Aerospace and Military:

Given its resistance to corrosion and high mechanical stability, 6J8/6J8P/6J8X wire is sometimes found in aerospace or military applications where high reliability in harsh environments is essential.

Advantages:

  • Long-Term Stability: The alloy maintains consistent electrical performance over extended periods, even under varying temperature and environmental conditions.
  • High Precision: Offers extremely low resistance variation, essential for precision instrumentation.
  • Corrosion and Oxidation Resistance: Suitable for use in harsh environments, providing long service life.
  • Mechanical Durability: Can be fabricated into fine wires or coiled shapes without compromising on strength.

6J8/6J8P/6J8X Precision Resistance Wire Accurate And Performance In Scientific Industrial And High-Tech Fields6J8/6J8P/6J8X Precision Resistance Wire Accurate And Performance In Scientific Industrial And High-Tech Fields6J8/6J8P/6J8X Precision Resistance Wire Accurate And Performance In Scientific Industrial And High-Tech Fields

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6J8/6J8P/6J8X Precision Resistance Wire Accurate And Performance In Scientific Industrial And High-Tech Fields

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Product Detail
Brand Name :
Senphus
Model Number :
6J8/6J8P/6J8X
Certification :
ISO9001
Place of Origin :
China
MOQ :
5kg
Payment Terms :
T/T, D/P
Contact Supplier
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6J8/6J8P/6J8X Precision Resistance Wire Accurate And Performance In Scientific Industrial And High-Tech Fields
6J8/6J8P/6J8X Precision Resistance Wire Accurate And Performance In Scientific Industrial And High-Tech Fields
6J8/6J8P/6J8X Precision Resistance Wire Accurate And Performance In Scientific Industrial And High-Tech Fields

Jiangyin Chengxin Alloy Material Co., Ltd ，

Verified Supplier
1 Years
jiangsu, changzhou
Since 2003
Business Type :
Manufacturer, Exporter, Seller
Main Products :
Pure Nickel Metal, NiCr Alloy, CuNi Alloy
Total Annual :
230000000-240000000
Employee Number :
1400~1500
Certification Level :
Verified Supplier
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