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China factory - Jiangyin Chengxin Alloy Material Co., Ltd ，

Jiangyin Chengxin Alloy Material Co., Ltd ，

  • China,Changzhou ,Jiangsu
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  3. Cr20Ni80 / 80Ni20Cr / NiCr8020 Durable Alloy Wire Strand For Electric Power
China Cr20Ni80 / 80Ni20Cr / NiCr8020 Durable Alloy Wire Strand For Electric Power
China Cr20Ni80 / 80Ni20Cr / NiCr8020 Durable Alloy Wire Strand For Electric Power

  1. China Cr20Ni80 / 80Ni20Cr / NiCr8020 Durable Alloy Wire Strand For Electric Power
  2. China Cr20Ni80 / 80Ni20Cr / NiCr8020 Durable Alloy Wire Strand For Electric Power
  3. China Cr20Ni80 / 80Ni20Cr / NiCr8020 Durable Alloy Wire Strand For Electric Power

Cr20Ni80 / 80Ni20Cr / NiCr8020 Durable Alloy Wire Strand For Electric Power

  1. MOQ： 5kg
  2. Price：
  3. Get Latest Price
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 China
Name Cr20Ni80/80Ni20Cr/NiCr8020 stranded alloy wire
Type Ni-Cr-Fe alloys
Application Heating element and resistor
Color Shiny silver or dark gray
Density 8.40
Resistivity at 20 ℃ 1.09±0.05
Melting point（℃） 1400
Thermal conductivity KJ/mh ℃ 60.3
Elongation at rupture（% ) >25
Brand Name Senphus
Model Number Cr20Ni80/80Ni20Cr/NiCr8020 stranded alloy wire
Certification ISO9001
Place of Origin China

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  1. Product Details
  2. Company Details

Product Specification

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 China Name Cr20Ni80/80Ni20Cr/NiCr8020 stranded alloy wire
Type Ni-Cr-Fe alloys Application Heating element and resistor
Color Shiny silver or dark gray Density 8.40
Resistivity at 20 ℃ 1.09±0.05 Melting point（℃） 1400
Thermal conductivity KJ/mh ℃ 60.3 Elongation at rupture（% ) >25
Brand Name Senphus Model Number Cr20Ni80/80Ni20Cr/NiCr8020 stranded alloy wire
Certification ISO9001 Place of Origin China
High Light 80Ni20Cr Alloy Wire Strand ，Electric Power Generation Alloy Wire Strand ，Cr20Ni80 Alloy Wire Strand

Cr20Ni80 / 80Ni20Cr / NiCr8020 Durable Alloy Wire Strand For Electric Power Generation And Chemical Processing


Cr20Ni80 (80Ni20Cr / NiCr8020) alloy wire strand is a high-performance nickel-chromium alloy known for its excellent electrical resistance, high-temperature strength, and oxidation resistance. Comprising approximately 80% nickel and 20% chromium, this alloy is widely used in electrical heating elements, industrial furnaces, and resistors. It offers superior resistance to corrosion and thermal fatigue, making it ideal for demanding applications requiring stable performance at elevated temperatures. The alloy exhibits a high melting point (~1400°C) and maintains mechanical integrity in harsh environments. Its excellent ductility and workability allow for easy fabrication into various forms, including stranded wire for enhanced flexibility and strength. Commonly used in heating cables, resistance wire, and industrial heating systems, NiCr8020 provides reliable and long-lasting performance. Its low thermal expansion and resistance to oxidation make it a preferred choice for high-temperature applications across multiple industries, including aerospace, automotive, and electronics.


Chemical Composition Wt.% Cr20Ni80 % Ni Fe C Si Mn P S Cr Al
Min


0.75


20
Max Rest 1 0.08 1.6 0.6 0.02 0.015 23 0.5


Trade Code

GB JIS ASTM DIN EN/DIN GOST
Cr20Ni80 NCHW-1
NCHR-1		 80Ni20Cr NiCr8020 Х20Н80-Н


Main characteristics of Ni-Cr and Ni-Cr-Fe electric heating alloys

Type Performance

 Cr30Ni70 Cr15Ni60 Cr20Ni35 Cr20Ni80 Cr20Ni30 Cr25Ni20
Main Chemical composition Ni Rest 55.0-61.0 34.0-37.0 Rest 30.0-34.0 19.0-22.0
Cr 28.0-31.0 15.0-18.0 18.0-21.0 20.0-23.0 18.0-21.0 24.0-26.0
Fe ≤ 1.0 Rest Rest ≤ 1.0 Rest Rest
Max. continuous service temp. of element (℃) 1250 1150 1100 1200 1100 1050
Resistivity at 20 ℃(μΩm) 1.18±0.05 1.12±0.05 1.04±0.05 1.09±0.05 1.06±0.05 0.95±0.05
Density(g/cm3) 8.10 8.20 7.90 8.40 7.90 7.15
Thermal condyctivity (KJ/m·h·℃) 45.2 45.2 43.8 60.3 43.8 43.8
Coefficient of lines expansion (α×10-6/℃) 17.0 17.0 19.0 18.0 19.0 19.0
Melting point (approx.)(℃) 1380 1390 1390 1400 1390 1400
Elonation at rupture(%) ＞20 ＞20 ＞20 ＞20 ＞20 ＞20
Micrographic structure Austenite Austenite Austenite Austenite Austenite Austenite
Magnetic properties Non-magnetic Low-magnetic Low-magnetic Non-magnetic Low-magnetic Non-magnetic
Note:The various grades of electric resistance alloy material are blended with the amountof rare earth, titanium and other trace elements, to improve the processing performance andextend the period of the uselife.


Cr20Ni80 / 80Ni20Cr / NiCr8020 Alloy Wire Strand – Key Features

1. High-Temperature Resistance

  • Withstands temperatures up to 1200°C (2192°F), making it ideal for heating elements.

2. Excellent Electrical Resistivity

  • Resistivity of ~1.09 Ω·mm²/m, ensuring stable and consistent electrical performance.

3. Superior Oxidation & Corrosion Resistance

  • High nickel content provides strong resistance to oxidation in high-temperature environments.
  • Resistant to chemical corrosion, making it suitable for harsh conditions.

4. High Mechanical Strength & Ductility

  • Maintains structural integrity under thermal cycling.
  • Offers good formability and ease of processing.

5. Long Service Life

  • Excellent creep resistance and thermal stability ensure extended lifespan in demanding applications.

6. Wide Range of Applications

  • Used in resistance heating elements, industrial furnaces, home appliances, and electronic components.


Applications:

Cr20Ni80 (also known as 80Ni20Cr or NiCr8020) is a high-resistance nickel-chromium alloy widely used in various industrial applications due to its excellent electrical resistance, oxidation resistance, and high-temperature performance. Here are some of its key applications when used as a wire strand:

1. Electrical Heating Elements

  • Commonly used in heating elements for industrial furnaces, kilns, and ovens.
  • Found in electric heating pads, hair dryers, and toasters.
  • Suitable for cartridge heaters and tubular heating elements in household and commercial applications.

2. Resistors and Electrical Components

  • Used in precision resistors due to its stable electrical resistance.
  • Applied in shunt resistors and load banks for industrial and automotive purposes.
  • Used in voltage dividers and current sensors.

3. Aerospace & Automotive Applications

  • Employed in high-temperature sensors, including thermocouples (typically as the "negative" leg in Type K and E thermocouples).
  • Used in aircraft and automotive exhaust systems that require high-heat resistance.

4. Hot Cutting Wires

  • Used in foam cutting machines for precise cutting of polystyrene (EPS, XPS) and other materials.
  • Employed in hot wire cutters for shaping wax, rubber, and plastics.

5. Glass and Ceramics Industry

  • Found in glass melting electrodes and ceramic kilns.
  • Used in furnaces that process glass and ceramic materials at high temperatures.

6. Industrial and Laboratory Equipment

  • Applied in hot air dryers and temperature-controlled chambers.
  • Used in lab furnaces and controlled-environment heating applications.

7. Corrosion-Resistant Applications

  • Suitable for marine and chemical industry applications where oxidation and corrosion resistance are required.
  • Used in high-humidity or high-temperature environments that would degrade other materials.

8. Medical and Scientific Devices

  • Found in specialized lab heating equipment.
  • Used in biomedical research instruments that require precise heat control.

Because of its superior mechanical properties, NiCr8020 wire strands are ideal for applications that require long service life, resistance to thermal cycling, and stable electrical performance. 


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)
0.018 0.000255 0.002117 3410-4610 0.25 0.04909 0.4074 20.88-23.54
0.020 0.000314 0.002606 2940-3740 0.28 0.06158 0.5111 16.64-18.76
0.022 0.000380 0.003154 2440-3100 0.30 0.07069 0.5867 14.49-16.35
0.025 0.000491 0.004075 1880-2400 0.32 0.07548 0.6265 12.74-14.36
0.028 0.000616 0.005113 1530-1870 0.33 0.08553 0.7099 12.20-13.40
0.030 0.000707 0.005868 1338-1696 0.38 0.1134 0.9412 9.13-10.09
0.032 0.000804 0.006673 1180-1440 0.40 0.1257 1.0433 8.24-9.108
0.035 0.000962 0.007985 981-1200 0.41 0.132 1.0956 7.68-8.89
0.040 0.001257 0.01043 780.7-954.1 0.45 0.159 1.3197 6.51-7.196
0.045 0.00159 0.0132 594-726 0.50 0.1963 1.6293 5.273-5.829
0.050 0.001963 0.01629 499.6-610.6 0.55 0.2376 1.9721 4.518-4.994
0.055 0.00238 0.01975 407-477 0.60 0.2827 2.3464 3.797-4.197
0.063 0.00312 0.02590 321.41-377.31 0.65 0.3318 2.7539 3.235-3.575
0.070 0.00385 0.03196 260.5-305.9 0.70 0.3848 3.1938 2.789-3.083
0.080 0.005027 0.04172 199.5-234.1 0.75 0.4418 3.6669 2.43-2.686
0.090 0.006362 0.0528 157.6-185.0 0.80 0.5027 4.1724 2.136-2.36
0.100 0.007854 0.0652 127.7-149.9 0.85 0.5674 4.7094 1.891-2.091
0.110 0.009852 0.08177 105.5-123.9 0.90 0.6362 5.2805 1.687-1.865
0.120 0.01227 0.1018 88.67-104.1 0.95 0.7088 5.883 1.46-1.62
0.140 0.01539 0.1277 65.85-75.77 1.00 0.7854 6.5188 1.367-1.511
0.150 0.01767 0.1467 56.75-66.63 1.10 0.9503 7.8875 1.13-1.26
0.160 0.02011 0.01669 50.42-58.00 1.12 0.9852 8.1772 1.05-1.17
0.170 0.022700 0.1884 44.18-51.86 1.18 1.0936 9.0769 0.95-1.05
0.180 0.02545 0.2112 40.26-45.40 1.20 1.313 10.8979 0.79-0.87
0.190 0.02835 0.2353 35.37-41.53 1.30 1.327 11.0141 0.78-0.86
0.200 0.03142 0.2608 32.62-36.78 1.40 1.539 12.7737 0.70-0.77
0.212 0.035300 0.2930 28.41-33.35 1.50 1.767 14.6661 0.60-0.67
0.220 0.03801 0.3155 26.65-30.39 1.60 2.011 16.8924 0.52-0.58



The tolerance or wires diameter

Wires Dia.(mm) Tolerance
0.018-0.025 ±0.001
0.028-0.035 ±0.0015
0.040-0.055 ±0.002
0.070 ±0.0025
0.08-0.10 ±0.003
0.11-0.14 ±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.


Technical data of ribbon

Thickness × Width(mm) Resistance/meter(20 ℃) (Ω/m) Surface area/ohm (20℃) (cm2/Ω) Weight/meter (g/m) Surface area/meter (cm2/m)
0.09x2.5 5.27 9.84 1.72 51.8
0.08x0.2 74 0.0756 0.122 5.6
0.08x0.3 49.4 0.154 0.183 7.6
0.08x0.4 37 0.259 0.244 9.6
0.08x0.5 29.6 0.392 0.305 11.6
0.08x0.6 24.7 0.551 0.367 13.6
0.08x0.7 21.2 0.737 0.428 15.6
0.08x0.8 18.5 0.951 0.489 17.6
0.08x0.9 16.5 1.19 0.55 19.6
0.08x1.0 14.8 1.46 0.611 21.6
0.08x1.2 12.3 2.07 0.733 25.6
0.08x1.5 9.87 3.2 0.916 31.6
0.08x1.8 8.23 4.57 1.1 37.6
0.08x2.0 7.4 5.62 1.22 41.6
0.07x0.2 84.6 0.0638 0.107 5.4
0.07x0.3 56.4 0.131 0.16 7.4
0.07x0.4 42.3 0.222 0.214 9.4
0.07x0.5 33.9 0.337 0.267 11.4
0.07x0.6 28.2 0.475 0.321 13.4
0.07x0.7 24.2 0.637 0.374 15.4
0.07x0.8 21.2 0.822 0.428 17.4
0.07x0.9 18.8 1.03 0.481 19.4
0.07x1.0 16.9 1.26 0.535 21.4
0.07x1.2 14.1 1.8 0.641 25.4
0.07x1.5 11.3 2.78 0.802 31.4
0.06x0.2 98.7 0.0527 0.0916 5.2
0.06x0.3 65.8 0.109 0.137 7.2
0.06x0.4 49.4 0.186 0.183 9.2
0.06x0.5 39.5 0.284 0.229 11.2
0.06x0.6 32.9 0.401 0.275 13.2
0.06x0.7 28.2 0.539 0.321 15.2
0.06x0.8 24.7 0.697 0.367 17.5
0.06x0.9 21.9 0.875 0.412 19.2
0.06x1.0 19.7 1.07 0.458 21.2
0.06x1.2 16.5 1.53 0.55 25.2
0.05x0.2 118 0.0422 0.0764 5.00
0.05x0.3 79 0.0886 0.115 7.00
0.05x0.4 59.2 0.152 0.153 9.00
0.05x0.5 47.4 0.232 0.191 11.00
0.05x0.6 39.5 0.329 0.229 13.00
0.05x0.7 33.9 0.443 0.267 15.0
0.05x0.8 29.6 0.574 0.305 17.0
0.05x0.9 16.3 0.722 0.344 19.0
0.05x1.0 23.7 0.886 0.382 21.0
Ribbon is rolled by the wire, the actual cross-sectional area of the ribbon is smaller 8％ than calculated by the rectangular.






Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory

  • Business Type:

    Manufacturer,Exporter,Seller

  • Year Established:

    2003

  • Total Annual:

    230000000-240000000

  • Employee Number:

    1400~1500

  • Ecer Certification：

    Verified Supplier

Company Overview: Jiangyin Chengxin Alloy Material Co., Ltd has more than 20 years of experience as the lead.ing alloy wire manufacturer in China. We offer a wide range of services from fine wire drawing toresistance wire manufacturing. Since the beginning, our specialty has been the quality and pre... Company Overview: Jiangyin Chengxin Alloy Material Co., Ltd has more than 20 years of experience as the lead.ing alloy wire manufacturer in China. We offer a wide range of services from fine wire drawing toresistance wire manufacturing. Since the beginning, our specialty has been the quality and pre...

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Get in touch with us

  • Reach Us
  • Jiangyin Chengxin Alloy Material Co., Ltd ，
  • Building 3, No. 29, Beitanghe East Road, Qinglong Street, Tianning District, Changzhou City, Jiangsu Province
  • https://www.heatingalloywire.com/

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