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Karma Ni-Cr-Al-Fe 6J22/6J422 Precision Resistance Wire High-Performance Solution for Fine Resistance Elements
Karma Ni-Cr-Al-Fe 6J22/6J422 Precision Resistance Wire High-Performance Solution for Fine Resistance Elements
Karma Ni-Cr-Al-Fe 6J22/6J422 Precision Resistance Wire High-Performance Solution for Fine Resistance Elements
Karma Ni-Cr-Al-Fe 6J22/6J422 Precision Resistance Wire High-Performance Solution for Fine Resistance Elements
Karma Ni-Cr-Al-Fe 6J22/6J422 Precision Resistance Wire High-Performance Solution for Fine Resistance Elements
Karma Ni-Cr-Al-Fe 6J22/6J422 Precision Resistance Wire High-Performance Solution for Fine Resistance Elements
Specifications
Brand Name :
Senphus
Model Number :
6J22/6J422
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.
Certification :
ISO9001
Place of Orig :
Jiangsu, China
Type :
Karma
Application :
Precision resistance element and strain
Color :
Brassy yellow
Product name :
6J22 Karma (Ni-Cr-Al-Fe)
Density :
8.1
Resistivity(20℃)(μΩm) :
1.33±0.07
Max. Working Temp. (℃) :
≤300
Elongation(%) :
＞7
Tensile Strength(N/mm2) :
≥780
Description

Karma Ni-Cr-Al-Fe 6J22/6J422 Precision Resistance Wire High-Performance Solution for Fine Resistance Elements

Karma Ni-Cr-Al-Fe 6J22/6J422 is a precision resistance wire composed primarily of nickel (Ni), chromium (Cr), aluminum (Al), and iron (Fe). It is known for its high resistance, reliability, and long-lasting performance, making it ideal for various industrial and electrical applications where precise resistance control is needed.

Karma alloy have common name Nikrothal L/Evanohm/Alloy 800, Karma alloy is made up of copper, nickel, Aluminum and Iron as the main components. The resistivity is 2~3 times higher than manganin. It has lower temperature coefficient of resistance( TCR) , lower thermal EMF versus copper, good permanence of resistance for a long period of time and strong anti-oxidation. Its working temperature range is wider than manganin (-60~300℃ ). It is suitable for making fine precision resistance elements and strain.

Chemical composition

Name Code Main Composition(%) Density (g/mm2) Standard
Cr Al Fe Ni
Karma 6J22 19~21 2.5~3.2 2.0~3.0 Bal. 8.1 JB/T 5328

Propertises

Name Code Resistivity(20℃)(μΩm) Temp.Coeff.Of Resistance (20℃)(α×10-6/℃) (0~100℃) Thermal EMF vs. Copper (μv/℃) Max. Working Temp. (℃) Elongation(%) Tensile Strength(N/mm2) Standard
Karma 6J22 1.33±0.07 ≤±20 ≤2.5 ≤300 ＞7 ≥780 JB/T 5328

The tolerance of wires diameter, size range

　 Diameter (mm) Tolerance
Wires 0.018~0.025 ±0.001
0.028~0.055 ±0.003
0.070~0.14 ±0.004
0.16~0.20 ±0.005
0.22~0.25 ±0.006
0.28~0.30 ±0.007
0.32~0.40 ±0.01
0.41~0.50 ±0.015
0.55~0.80 +0.02/-0.03
0.85~1.00 +0.02/-0.03
1.10~1.50 ±0.03
Note:Special specification can be produced as per client's request.


Kamar (6J22) Technical Data of wires

Dia (mm) Cross-sectional area (mm2) Weight/meter (g/m) Resisitance/ meter at 20 ℃ (Ω/m) Dia (mm) Cross-sectional area (mm2) Weight/meter (g/m) Resisitance/ meter at 20 ℃ (Ω/m)
0.018 0.000255 0.002066 4707-5749 0.25 0.04909 0.3976 25.74-28.45
0.020 0.000314 0.002543 3810-4657 0.28 0.06158 0.4988 20.52-22.68
0.022 0.000380 0.003078 3149-3849 0.30 0.07069 0.5726 17.87-19.76
0.025 0.000491 0.003977 2439-2980 0.32 0.07548 0.6114 16.74-18.5
0.028 0.000616 0.00499 1944-2376 0.33 0.08553 0.6928 14.78-16.33
0.030 0.000707 0.005727 1750-2015 0.38 0.1134 0.9185 11.13-12.31
0.032 0.000804 0.006512 1488-1819 0.40 0.1257 1.0182 10.05-11.11
0.035 0.000962 0.007792 1244-1521 0.41 0.132 1.0692 9.57-10.57
0.040 0.001257 0.01018 953-1164 0.45 0.159 1.288 7.94-8.77
0.045 0.001590 0.01288 752.6-919.9 0.50 0.1963 1.590 6.43-7.11
0.050 0.001963 0.0159 609.6-745.1 0.55 0.2376 1.9246 5.32-5.88
0.055 0.002380 0.01928 515.0-604.6 0.60 0.2827 2.2899 4.46-4.94
0.063 0.003120 0.02527 392.2-460.4 0.65 0.3318 2.6876 3.81-4.21
0.070 0.003850 0.03119 317.9-373.2 0.70 0.3848 3.1169 3.27-3.62
0.080 0.005027 0.0407 243.4-285.8 0.75 0.4418 3.5786 2.85-3.16
0.090 0.006362 0.0515 192.3-225.8 0.80 0.5027 4.0719 2.51-2.77
0.100 0.007854 0.0636 155.8-182.9 0.85 0.5674 4.5959 2.22-2.45
0.110 0.009852 0.0798 128.8-151.1 0.90 0.6362 5.1532 1.98-2.19
0.120 0.012270 0.0994 111.7-123.5 0.95 0.7088 5.7413 1.79-1.97
0.140 0.015390 0.1247 82.08-90.72 1.00 0.7854 6.3617 1.60-1.77
0.150 0.017670 0.1431 71.51-79.03 1.10 0.9503 7.6974 1.33-1.47
0.160 0.020110 0.1629 62.84-69.46 1.12 0.9852 7.9801 1.28-1.42
0.170 0.022700 0.1839 55.66-61.52 1.18 1.0936 8.8582 1.16-1.28
0.180 0.025450 0.2061 49.65-54.88 1.20 1.313 9.1611 1.11-1.23
0.190 0.028350 0.2296 44.56-49.26 1.30 1.327 10.7487 0.95-1.05
0.200 0.031420 0.2545 40.22-44.45 1.40 1.539 12.466 0.82-0.90
0.212 0.035300 0.2859 35.80-39.56 1.50 1.767 14.3127 0.71-0.79
0.220 0.038010 0.3079 33.24-36.74 1.60 2.011 16.2891 0.63-0.69

Some key features of 6J22 include:

  1. Composition: 6J22 is composed primarily of nickel, with significant amounts of chromium (around 20%), and smaller percentages of copper, manganese, silicon, and iron.
  2. Electrical Resistivity: This alloy has a high electrical resistivity, which is crucial for applications requiring precise resistance values.
  3. Temperature Coefficient of Resistance (TCR): 6J22 boasts a low TCR, ensuring that its resistance changes minimally with temperature fluctuations, thus maintaining stability in various environments.
  4. Corrosion Resistance: The high chromium content endows 6J22 with excellent corrosion resistance, particularly against oxidation and in acidic or alkaline conditions.
  5. Mechanical Properties: 6J22 exhibits good mechanical strength and ductility, allowing it to be shaped and manipulated for various applications without compromising its integrity.
  6. Thermal Stability: The alloy's resistance remains stable over a broad temperature range, making it suitable for high-temperature applications.
  7. Microstructure: 6J22 has a single-phase austenitic structure, which contributes to its excellent physical and chemical properties.

This alloy's combination of high resistivity, low TCR, and corrosion resistance makes it a preferred choice in electronics, electrical engineering, and industries where precision and reliability are paramount.

Applications:

  • Precision Resistance Elements: 6J22 is suitable for making precise resistance elements in various measuring instruments and meters due to its high resistivity and low temperature coefficient of resistance.
  • Micro Resistance Elements and Strain Gauges: The alloy is also used for manufacturing precise micro resistance elements and strain gauges, benefiting from its stability and resistance to oxidation.
  • Heating Elements: 6J22's resistance stability and high-temperature performance make it ideal for electric furnace heating elements and other applications requiring resistance to heat.
  • Compensation Leads: Given its low thermal electromotive force against copper, 6J22 is used in compensation leads for thermocouples to ensure accurate temperature measurements.
  • Electrical Measuring Instruments: The alloy's precision resistance characteristics make it widely used in electrical measuring instruments where measurement accuracy is crucial.

Karma Ni-Cr-Al-Fe 6J22/6J422 Precision Resistance Wire High-Performance Solution for Fine Resistance ElementsKarma Ni-Cr-Al-Fe 6J22/6J422 Precision Resistance Wire High-Performance Solution for Fine Resistance ElementsKarma Ni-Cr-Al-Fe 6J22/6J422 Precision Resistance Wire High-Performance Solution for Fine Resistance Elements

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Karma Ni-Cr-Al-Fe 6J22/6J422 Precision Resistance Wire High-Performance Solution for Fine Resistance Elements

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Product Detail
Brand Name :
Senphus
Model Number :
6J22/6J422
Place of Origin :
China
MOQ :
5kg
Payment Terms :
T/T, D/P
Supply Ability :
30 Tons per day
Contact Supplier
video
Karma Ni-Cr-Al-Fe 6J22/6J422 Precision Resistance Wire High-Performance Solution for Fine Resistance Elements
Karma Ni-Cr-Al-Fe 6J22/6J422 Precision Resistance Wire High-Performance Solution for Fine Resistance Elements
Karma Ni-Cr-Al-Fe 6J22/6J422 Precision Resistance Wire High-Performance Solution for Fine Resistance Elements

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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