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CuNi19 NC025 CuNi Alloy Wire For High Temperature Heating And Thermal Treatment

Categories CuNi Alloy
Brand Name: Senphus
Model Number: CuNi19/NC025
Place of Origin: Jiangsu, 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
Type: Nickel wire
Application: Heating,household electrical application
Color: Silvery White/bright or oxidized
Product name: CuNi19 NC025 copper nickel wire
Resistivity: 0.25 ±5%
Melting temperature in ℃: 1135
Min.tensile strength in N/mm²: 340
Elongation: 25
Density: 8.9
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CuNi19 NC025 CuNi Alloy Wire For High Temperature Heating And Thermal Treatment

CuNi19 NC025 CuNi Alloy Wire For High Temperature Heating And Thermal Treatment


CuNi19, also known as NC025, is a copper-nickel alloy with approximately 19% nickel content. It is valued for its combination of properties that make it suitable for a variety of applications. CuNi19 is an excellent choice for applications where a combination of high resistivity, corrosion resistance, and mechanical strength is required, particularly in marine environments and chemical processing industries.


CuNi19 is a copper-nickel alloy containing approximately 81% copper and 19% nickel, often with small additions of iron and manganese to enhance its properties. This alloy is renowned for its excellent corrosion resistance, particularly in seawater and brine environments, making it ideal for marine and industrial applications. CuNi19 offers a good balance of mechanical strength, thermal conductivity, and ductility, allowing for reliable performance in harsh conditions.


Chemical Composition Wt.

%NiMnCu

MIN.

MAX.190.5Rest

Main physical properties:

Max continuous operating temperature ℃300
Resistance temperature coefficient x 10-5/℃(20℃-600℃)<25
Thermovoltage to copper at 20℃ in μV/K-32
Thermal expansion coefficient ×10-6/K(20℃-400℃)17.5
Thermal conductance at 20℃ W/mK38
Specific heat capacity at 20℃ J/gK0.38

Some key features of CuNi19 include:

  • Outstanding Corrosion Resistance: Excellent protection against seawater corrosion, biofouling, and stress corrosion cracking.
  • High Strength and Durability: Superior mechanical properties compared to lower-nickel copper alloys.
  • Thermal and Electrical Conductivity: Good thermal conductivity for heat exchangers; moderate electrical conductivity for specialized applications.
  • Antifouling Properties: Resists biofouling, reducing maintenance in marine systems.
  • Good Fabrication Properties: Suitable for welding, machining, and forming.

Applications:

  1. Marine Applications: Piping, valves, and fittings in seawater systems.
  2. Heat Exchangers: Tubes for desalination plants, power generation, and chemical industries.
  3. Shipbuilding: Hulls, cladding, and structural components exposed to seawater.
  4. Oil and Gas Industry: Components in offshore platforms and refineries.
  5. Electrical and Electronic Applications: Connectors, resistance wires, and conductive parts.

CuNi19 is highly valued for its resilience, making it a preferred choice in demanding environments such as marine engineering, power plants, and chemical processing.


Main technical data

Type

CuNi1

NC003

CuNi2

NC005

CuNi4

NC007

CuNi6

NC010

CuNi8

NC012

CuMn3

NC012

CuNi10

NC015

CuNi14

NC020

CuNi19

NC025

CuNi23

NC030

CuNi30

NC035

CuNi34

NC040

CuNi44

NC050

Composition(%)CuRestRestRestRestRestRestRestRestRestRestRestRestRest
Mn/////3/0.30.50.51.01.01.0
Ni12468 1014.21923303444
Max.continuous operating temperature(℃)200200·200220250200250300300300350350400
Resistivity at 20℃(μ m)0.03
±10%
0.05
±10%
0.07
±10%
0.10
±10%
0.12
±10%
0.12
±10%
0.15
±10%
0.20
±5%
0.25
±5%
0.30
±5%
0.35
±5%
0.40
±5%
0.49
±5%
Resisitance-temperature coefficient 20-600℃ (×10-5/℃)< 100< 120< 50< 60< 57< 38< 50< 38< 25< 16< 10< -0< -6
Thermovoltage to
copper at 20℃ in (μV/K)
-8-12-12-18-221-25-28-32-34-37-39-43
Mean coefficient of linear thermal expansion, in (10-6/K) , at a temperature between 20 ℃ and 400 ℃17.517.517.517.517.51817.517.517.517.517.016.015.0
Thermal conductance
at 20℃ (W/mK)
14513013092758459483833272523
Specific heat capacity at 20℃ in (20℃ J/gK)0.380.380.380.380.380.390.380.380.380.380.390.400.41
Density at 20 ℃(g/cm3)8.98.98.98.98.98.88.98.98.98.98.98.98.9
Melting temperature in (℃)1085109010901095109710501100111511351150117011801280
Min.tensile strength in (N/mm2)210220220250270290290310340350400400420
Elongation(%)25252525252525252525252525

Technical data table

Diameter(mm)NC003 CuNi1NC005 CuNi2NC007 CuNi4NC010 CuNi6NC012 CuNi8NC015 CuNi10NC020 CuNi14NC025 CuNi19NC030 CuNi23NC035 CuNi30NC040 CuNi34NC050 CuNi44
0.103.826.368.9112.7315.2819.0925.4631.8338.1944.5650.9362.39
0.113.165.267.3710.5212.6315.7821.0426.3031.5636.8242.0951.56
0.122.654.426.198.8410.6113.2617.6822.1026.5230.9435.3743.33
0.132.263.765.277.539.0411.3015.0718.8322.6026.3630.1436.92
0.141.953.244.556.497.809.7412.9916.2419.4822.7325.9831.83
0.151.702.823.965.656.798.4811.3114.1416.9719.8022.6427.73
0.161.492.483.484.975.977.469.9512.4314.9217.4019.8924.37
0.171.322.203.084.405.296.608.8111.0113.2115.4117.6221.59
0.181.181.962.753.924.725.897.869.8211.7813.7515.7219.26
0.191.061.762.473.524.235.297.058.8110.5812.3414.1117.28
0.200.951.592.233.183.824.776.367.959.5411.1412.7315.60
0.210.871.442.022.883.464.335.777.218.6610.1011.5514.15
0.220.791.311.842.633.163.945.266.577.899.2010.5212.89
0.230.721.201.682.402.893.614.816.017.228.429.6311.79
0.240.661.101.552.212.653.314.425.526.637.738.8410.83
0.250.611.011.432.032.443.054.075.096.117.138.159.98
0.260.570.941.321.882.262.823.774.705.656.597.539.23
0.270.520.871.221.742.102.613.494.365.236.116.998.56
0.280.490.811.141.621.952.433.254.064.875.686.507.96
0.290.450.751.061.511.822.273.033.784.545.296.067.42
0.300.420.700.991.411.702.122.833.534.244.955.666.93
0.310.400.660.931.321.591.982.653.313.974.635.306.49
0.320.370.620.871.241.491.862.493.113.734.354.976.09
0.330.350.580.821.171.401.752.342.923.514.094.685.73
0.340.330.550.771.101.321.652.202.753.303.854.415.40
0.350.310.510.731.031.251.552.082.603.113.634.165.09
0.360.290.490.690.981.181.471.962.462.943.433.934.81
0.370.280.460.650.931.121.391.862.332.793.253.724.56
0.380.260.440.620.881.061.321.762.202.643.083.534.32
0.400.240.390.560.790.951.191.591.992.382.783.183.90
0.410.230.370.530.760.911.131.511.892.272.653.033.71
0.420.220.360.510.720.871.081.441.802.162.522.893.54
0.430.210.340.480.690.831.031.381.722.062.412.753.37
0.440.200.320.460.660.790.981.311.641.972.302.633.22
0.450.190.310.440.630.750.941.261.571.882.202.523.08
0.460.180.300.420.600.720.901.201.501.802.102.412.95
0.470.170.280.400.580.690.861.151.441.722.012.312.82
0.480.170.270.390.550.660.821.101.381.651.932.212.71
0.490.160.260.370.530.640.791.061.331.591.852.122.60
0.500.150.250.360.510.610.761.011.271.521.782.042.50
0.510.150.240.340.490.590.730.981.221.461.711.962.40
0.520.140.230.330.470.570.700.941.181.411.651.882.31
0.530.140.220.320.450.540.670.911.131.351.591.812.22
0.540.130.220.310.440.520.650.871.091.301.531.752.14
0.550.130.210.290.420.510.630.841.051.261.471.682.06
0.560.120.200.280.410.490.600.811.021.211.421.621.99
0.570.120.190.270.390.470.580.780.981.171.371.571.92
0.580.110.190.270.380.450.560.760.951.131.321.511.85
0.590.110.180.260.370.440.540.730.911.091.281.461.79
0.600.110.180.250.350.420.530.710.881.061.241.411.73
  • Tolerance of ohm/m: ±5%
  • Round wire: range from 0.04mm (0.0016″) to 12mm (0.4724″)
  • Ribbon: range from 0.05mm (0.002″) to 6mm (0.2362″), Max ratio width : thickness = 10:1


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