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Resistance Heating Wire

Resistance Heating Wire

By using the material involving pure nickel, chromel alloy, Fe-Cr-Al alloy and copper nickel alloy, the resistance heating wire is produced through the processes covering smelting, steel rolling, forging, annealing, drawing, surface treatment, resistance control test, etc.

Our high resistance electrothermal alloy wire is characterized by uniform ingredients, stable resistance, accurate size, long working lifetime and good processing performance. It is extensively used for making heating equipment like industrial furnace, the civil heating appliance, various electrical resistors and locomotive braking resistor. Choosing our product means you get the guarantee for top quality and also the foremost service.

Forms and Specifications
Forms and Specifications Properties
Round Type Diameter: 0.02-12mm Annealed, Oxidized/ Acid Treated /Bright
Max. Width of Ribbon/Strip Type: 300mm
Stranded Type: according to request
Specification of Cold-drawing Round Type
Diameter (mm) Tolerance (mm) Diameter (mm) Tolerance (mm)
0.03-0.05 ±0.005 >0.50-1.00 ±0.02
>0.05-0.10 ±0.006 >1.00-3.00 ±0.03
>0.10-0.20 ±0.008 >3.00-6.00 ±0.04
>0.20-0.30 ±0.010 >6.00-8.00 ±0.05
>0.30-0.50 ±0.015 >8.00-12.0 ±0.4
Specification of Cold-drawing Strip Type
Thickness (mm) Tolerance (mm) Width (mm) Tolerance (mm)
0.05-0.10 ±0.010 5.00-10.0 ±0.2
>0.10-0.20 ±0.015 >10.0-20.0 ±0.2
>0.20-0.50 ±0.020 >20.0-30.0 ±0.2
>0.50-1.00 ±0.030 >30.0-50.0 ±0.3
>1.00-1.80 ±0.040 >50.0-90.0 ±0.3
>1.80-2.50 ±0.050 >90.0-120.0 ±0.5
>2.50-3.50 ±0.060 >120.0-250.0 ±0.6
Chemical Composition
Alloy Material Chemical Composition (%)
C P S Mn Si Cr Ni Al Fe others
Max.( ≤ )
Cr20Ni80 0.08 0.02 0.015 0.6 0.75 ~ 1.60 20.0 ~ 23.0 Rest ≤0.50 ≤1.0 -
Cr30Ni70 0.08 0.02 0.015 0.6 0.75 ~ 1.60 28.0 ~ 31.0 Rest ≤0.50 ≤1.0 -
Cr15Ni60 0.08 0.02 0.015 0.6 0.75 ~ 1.60 15.0 ~ 17.0 55.0 ~ 61.0 ≤0.50 Rest -
Cr20Ni35 0.08 0.02 0.015 1 1.00 ~ 3.00 18.0 ~ 21.0 34.5 ~ 36.0 - Rest -
Cr20Ni30 0.08 0.02 0.015 1 1.00 ~ 2.00 18.0 ~ 21.0 30.0 ~ 31.5 - Rest -
1Cr13Al4 0.12 0.025 0.025 0.7 ≤ 1.00 12.5 ~ 15.0 - 3.5 ~ 4.5 Rest -
0Cr15Al5 0.12 0.025 0.025 0.7 ≤ 1.00 14.5 ~ 15.5 - 4.5 ~ 5.3 Rest -
0Cr25Al5 0.06 0.025 0.025 0.7 ≤ 0.60 23.0 ~ 26.0 ≤0.60 4.5 ~ 6.5 Rest -
0Cr23Al5 0.06 0.025 0.025 0.7 ≤ 0.60 20.5 ~ 23.5 ≤0.60 4.2 ~ 5.3 Rest -
0Cr21Al6 0.06 0.025 0.025 0.7 ≤ 1.00 19.0 ~ 22.0 ≤0.60 5.0 ~ 7.0 Rest -
1Cr20Al3 0.06 0.025 0.025 0.7 ≤ 1.00 18.0 ~ 21.0 ≤0.60 3.0 ~ 4.2 Rest -
0Cr21Al6Nb 0.05 0.025 0.025 0.7 ≤ 0.60 21.0 ~ 23.0 ≤0.60 5.0 ~ 7.0 Rest Nb add 0.5
0Cr27Al7Mo2 0.05 0.025 0.025 0.2 ≤ 0.40 26.5 ~ 27.8 ≤0.60 6.0 ~ 7.0 Rest Mo add 2.0
Technical Specification (Part 1)
Alloy Type Diameter
(mm)
Resistivity
(μΩm)(20℃ )
Tensile Strength (N/mm2) Elongation (%) Bending Times Max. Continuous Service Temperature (℃) Working Life (hours)
Cr20Ni80 < 0.50 1.09±0.05 850-950 > 20 > 9 1200 > 20000
0.50 ~ 3.0 1.13±0.05 850-950 > 20 > 9 1200 > 20000
> 3.00 1.14±0.05 850-950 > 20 > 9 1200 > 20000
Cr30Ni70 < 0.50 1.18±0.05 850-950 > 20 > 9 1250 > 20000
≥ 0.50 1.20±0.05 850-950 > 20 > 9 1250 > 20000
Cr15Ni60 < 0.50 1.12±0.05 850-950 > 20 > 9 1125 > 20000
≥ 0.50 1.15±0.05 850-950 > 20 > 9 1125 > 20000
Cr20Ni35 < 0.50 1.04±0.05 850-950 > 20 > 9 1100 > 18000
≥ 0.50 1.06±0.05 850-950 > 20 > 9 1100 > 18000
1Cr13Al4 0.03 - 12.0 1.25±0.08 588-735 > 16 > 6 950 > 10000
0Cr15Al5 1.25±0.08 588-735 > 16 > 6 1000 > 10000
0Cr25Al5 1.42±0.07 634-784 > 12 > 5 1300 > 8000
0Cr23Al5 1.35±0.06 634-784 > 12 > 5 1250 > 8000
0Cr21Al6 1.42±0.07 634-784 > 12 > 5 1300 > 8000
1Cr20Al3 1.23±0.06 634-784 > 12 > 5 1100 > 8000
0Cr21Al6Nb 1.45±0.07 634-784 > 12 > 5 1350 > 8000
0Cr27Al7Mo2 0.03 - 12.0 1.53±0.07 686-784 > 12 > 5 1400 > 8000
Technical Specification (Part 2)
Alloy Type Chemical Composition (%) Density (g/cm3) Melting Point (℃) Resistivity (μΩm)(20℃ ) Tensile Strength (N/mm2) Elongation (%) Max. Continuous Service Temperature (℃)
Cu Mn Ni Cr Al Fe
Constantan (Cu-Ni Alloy) CuNi44 Rest 1.0 44 - - - 8.9 1280 0.49 ≥ 400 ≥20 450-700
CuNi40 Rest 1.0 40 - - - 8.9 1280 0.48±0.03 ≥ 400 ≥20 450-700
CuNi34 Rest 1.0 34 - - - 8.9 1180 0.40 ≥ 400 ≥20 350-600
CuNi30 Rest 1.0 30 - - - 8.9 1170 0.35 ≥ 400 ≥20 350-600
CuNi23 Rest 0.5 23 - - - 8.9 1150 0.30 ≥ 350 ≥20 300-450
CuNi19 Rest 0.5 19 - - - 8.9 1135 0.25 ≥ 340 ≥20 300-450
CuNi15 Rest 0.3 14.5 - - - 8.9 1115 0.20 ≥ 310 ≥20 300-400
CuNi10 Rest - 10 - - - 8.9 1100 0.15 ≥ 290 ≥20 250-350
CuNi8 Rest - 8 - - - 8.9 1097 0.12 ≥ 270 ≥20 250-350
CuNi6 Rest - 6 - - - 8.9 1095 0.10 ≥ 251 ≥18 200-300
CuNi2 Rest - 2 - - - 8.9 1090 0.05 ≥ 220 ≥18 200-300
CuNi1 Rest - 1 - - - 8.9 1085 0.03 ≥ 210 ≥18 200-300
Karma - - Rest 19-22 2.5-3.2 2-3 8.1 1400 1.33±0.07   950 10-20 -60-300
Evanohm - - Rest 19-22 2.5-3.2 1.0 8.4 1400 1.05±0.05 686-736 30 0-500  
Manganin (Cu-Mn Alloy) CuMn12 Rest 11-13 2-3 - - - 8.4 960 0.47±0.03 490-539 10-30 50
CuMn13 Rest 11-13 - - - - 8.4 960 0.44±0.04 490-539 10-30 80
CuMn8 Rest 8-10 2-5 - - - 8.7 960 0.35±0.05 490-539 10-30 80

Other Information
1. Production Capability: 100tons/month
2. Delivery Date: 20 working days since the receipt of the downpayment or L/C date
3. Payment Term: T/T or L/C
4. Price Term: FOB, CNF, CIF, CPT, DDU, DDP

Apart from the resistance heating wire, we are also expert at manufacturing copper clad aluminum busbar, metal tape, thermocouple wire, magnet wire, etc.

Caution
1. The product should be designed on the basis of power wiring method to ensure reasonable surface loading. The user should select the product with appropriate diameter.
2. Before installation, the user should check the furnace comprehensively to clear away the ferrite, carbon deposit and the hidden trouble to avoid short circuit causing breakdown of the product.
3. The resistance heating wire should be connected according to the designed wiring method.
4. Before using the product, the user should check the sensitivity of the temperature control system first. Otherwise, the failure of the temperature control system may cause burnout of the product.

Related Names
High Resistance Electrical Heating Wire | Nichrome Wire used as Heating Element | Nickel-chromium Alloy Strip Supplier | Resistance Heating Ribbon for Sale
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