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High Thermal And Electrical Conductivity Of CuNi Alloy CuNi2 NC005 2.0802 C70260 For Heat Exchanger

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High Thermal And Electrical Conductivity Of CuNi Alloy CuNi2 NC005 2.0802 C70260 For Heat Exchanger

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Brand Name : Senphus

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.

Model Number : CuNi2/NC005/2.0802/C70260

Certification : ISO9001

Product name : CuNi2 NC005 copper nickel wire

Type : Nickel wire

Application : Heating,household electrical application

Color : Silvery White/bright or oxidized

Resistivity : 0.05 ±10%

Melting temperature in ℃ : 1090

Density at 20℃ (g/cm³) : 8.9

Min.tensile strength in N/mm² : 220

Elongation : 25

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High Thermal And Electrical Conductivity Of CuNi Alloy CuNi2 NC005 2.0802 C70260 For Heat Exchanger

CuNi2 is a copper-nickel alloy composed of approximately 98% copper and 2% nickel, with trace amounts of iron and other elements to enhance its properties. This alloy is known for its excellent corrosion resistance, particularly in freshwater and mildly aggressive environments. Its low nickel content provides good resistance to stress corrosion and tarnishing while maintaining cost efficiency.

CuNi2 has high thermal and electrical conductivity, making it suitable for applications in electrical and electronic industries, such as connectors, resistance wires, and cables. It also has good workability, allowing it to be easily shaped and fabricated into components like tubes, sheets, and wires.

Typical applications of CuNi2 include heat exchanger tubes, coinage, and electrical connectors, especially in environments requiring durability and corrosion resistance. The alloy is also used in architectural applications like roofing and cladding for its aesthetic appeal and weather resistance.

Trade Code

GB ISO ASTM DIN/EN JIS GOST AS

CuNi2

NC005

CuNi2Si C70260

CuNi2

2.0802

C70260

C7026

C70260

MH2

702B

C70260

Main physical properties:

Max continuous operating temperature ℃ 200
Resistance temperature coefficient x 10-5/℃(20℃-600℃) <120
Thermovoltage to copper at 20℃ in μV/K -12
Thermal expansion coefficient ×10-6/K(20℃-400℃) 17.5
Thermal conductance at 20℃ W/mK 130
Specific heat capacity at 20℃ J/gK 0.38

Some key features of CuNi2 include:

  • Corrosion Resistance:

Excellent resistance to corrosion in seawater, brine, and mildly acidic or alkaline environments.

Resistance to biofouling and stress-corrosion cracking.

  • High Electrical and Thermal Conductivity:

Superior conductivity compared to higher nickel-content copper alloys, making it ideal for electrical and thermal applications.

  • Ductility and Workability:

Highly ductile, enabling easy fabrication into various forms, including wires, sheets, and tubes.

  • Cost-Effectiveness:

Low nickel content reduces material costs while retaining essential corrosion-resistant properties.

  • Mechanical Properties:

Adequate strength for applications requiring structural integrity in moderate environments.

  • Antimicrobial Properties:

Copper content provides natural antimicrobial benefits, useful in plumbing and hygiene-critical systems.

  • Non-Magnetic:

Suitable for applications requiring minimal magnetic interference.

These features make CuNi2 an attractive choice for marine, industrial, electrical, and decorative applications.

Applications:

  • Marine Industry: Used in heat exchangers, condensers, and low-pressure piping systems in seawater environments.
  • Electrical Components: Common in connectors, cables, and resistance wires due to its excellent conductivity.
  • Coinage: Occasionally used for coins because of its durability and aesthetic appeal.
  • Industrial Systems: Found in components for chemical processing and mildly corrosive environments.

CuNi2 offers a balance between corrosion resistance, conductivity, and cost, making it ideal for applications where these properties are crucial.

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(%) Cu Rest Rest Rest Rest Rest Rest Rest Rest Rest Rest Rest Rest Rest
Mn / / / / / 3 / 0.3 0.5 0.5 1.0 1.0 1.0
Ni 1 2 4 6 8   10 14.2 19 23 30 34 44
Max.continuous operating temperature(℃) 200 200 200 220 250 200 250 300 300 300 350 350 400
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 -22 1 -25 -28 -32 -34 -37 -39 -43
Mean coefficient of linear thermal expansion, in (10-6/K) , at a temperature between 20 ℃ and 400 ℃ 17.5 17.5 17.5 17.5 17.5 18 17.5 17.5 17.5 17.5 17.0 16.0 15.0
Thermal conductance
at 20℃ (W/mK)
145 130 130 92 75 84 59 48 38 33 27 25 23
Specific heat capacity at 20℃ in (20℃ J/gK) 0.38 0.38 0.38 0.38 0.38 0.39 0.38 0.38 0.38 0.38 0.39 0.40 0.41
Density at 20 ℃(g/cm3) 8.9 8.9 8.9 8.9 8.9 8.8 8.9 8.9 8.9 8.9 8.9 8.9 8.9
Melting temperature in (℃) 1085 1090 1090 1095 1097 1050 1100 1115 1135 1150 1170 1180 1280
Min.tensile strength in (N/mm2) 210 220 220 250 270 290 290 310 340 350 400 400 420
Elongation(%) 25 25 25 25 25 25 25 25 25 25 25 25 25

Technical data table

Diameter(mm) NC003 CuNi1 NC005 CuNi2 NC007 CuNi4 NC010 CuNi6 NC012 CuNi8 NC015 CuNi10 NC020 CuNi14 NC025 CuNi19 NC030 CuNi23 NC035 CuNi30 NC040 CuNi34 NC050 CuNi44
0.10 3.82 6.36 8.91 12.73 15.28 19.09 25.46 31.83 38.19 44.56 50.93 62.39
0.11 3.16 5.26 7.37 10.52 12.63 15.78 21.04 26.30 31.56 36.82 42.09 51.56
0.12 2.65 4.42 6.19 8.84 10.61 13.26 17.68 22.10 26.52 30.94 35.37 43.33
0.13 2.26 3.76 5.27 7.53 9.04 11.30 15.07 18.83 22.60 26.36 30.14 36.92
0.14 1.95 3.24 4.55 6.49 7.80 9.74 12.99 16.24 19.48 22.73 25.98 31.83
0.15 1.70 2.82 3.96 5.65 6.79 8.48 11.31 14.14 16.97 19.80 22.64 27.73
0.16 1.49 2.48 3.48 4.97 5.97 7.46 9.95 12.43 14.92 17.40 19.89 24.37
0.17 1.32 2.20 3.08 4.40 5.29 6.60 8.81 11.01 13.21 15.41 17.62 21.59
0.18 1.18 1.96 2.75 3.92 4.72 5.89 7.86 9.82 11.78 13.75 15.72 19.26
0.19 1.06 1.76 2.47 3.52 4.23 5.29 7.05 8.81 10.58 12.34 14.11 17.28
0.20 0.95 1.59 2.23 3.18 3.82 4.77 6.36 7.95 9.54 11.14 12.73 15.60
0.21 0.87 1.44 2.02 2.88 3.46 4.33 5.77 7.21 8.66 10.10 11.55 14.15
0.22 0.79 1.31 1.84 2.63 3.16 3.94 5.26 6.57 7.89 9.20 10.52 12.89
0.23 0.72 1.20 1.68 2.40 2.89 3.61 4.81 6.01 7.22 8.42 9.63 11.79
0.24 0.66 1.10 1.55 2.21 2.65 3.31 4.42 5.52 6.63 7.73 8.84 10.83
0.25 0.61 1.01 1.43 2.03 2.44 3.05 4.07 5.09 6.11 7.13 8.15 9.98
0.26 0.57 0.94 1.32 1.88 2.26 2.82 3.77 4.70 5.65 6.59 7.53 9.23
0.27 0.52 0.87 1.22 1.74 2.10 2.61 3.49 4.36 5.23 6.11 6.99 8.56
0.28 0.49 0.81 1.14 1.62 1.95 2.43 3.25 4.06 4.87 5.68 6.50 7.96
0.29 0.45 0.75 1.06 1.51 1.82 2.27 3.03 3.78 4.54 5.29 6.06 7.42
0.30 0.42 0.70 0.99 1.41 1.70 2.12 2.83 3.53 4.24 4.95 5.66 6.93
0.31 0.40 0.66 0.93 1.32 1.59 1.98 2.65 3.31 3.97 4.63 5.30 6.49
0.32 0.37 0.62 0.87 1.24 1.49 1.86 2.49 3.11 3.73 4.35 4.97 6.09
0.33 0.35 0.58 0.82 1.17 1.40 1.75 2.34 2.92 3.51 4.09 4.68 5.73
0.34 0.33 0.55 0.77 1.10 1.32 1.65 2.20 2.75 3.30 3.85 4.41 5.40
0.35 0.31 0.51 0.73 1.03 1.25 1.55 2.08 2.60 3.11 3.63 4.16 5.09
0.36 0.29 0.49 0.69 0.98 1.18 1.47 1.96 2.46 2.94 3.43 3.93 4.81
0.37 0.28 0.46 0.65 0.93 1.12 1.39 1.86 2.33 2.79 3.25 3.72 4.56
0.38 0.26 0.44 0.62 0.88 1.06 1.32 1.76 2.20 2.64 3.08 3.53 4.32
0.40 0.24 0.39 0.56 0.79 0.95 1.19 1.59 1.99 2.38 2.78 3.18 3.90
0.41 0.23 0.37 0.53 0.76 0.91 1.13 1.51 1.89 2.27 2.65 3.03 3.71
0.42 0.22 0.36 0.51 0.72 0.87 1.08 1.44 1.80 2.16 2.52 2.89 3.54
0.43 0.21 0.34 0.48 0.69 0.83 1.03 1.38 1.72 2.06 2.41 2.75 3.37
0.44 0.20 0.32 0.46 0.66 0.79 0.98 1.31 1.64 1.97 2.30 2.63 3.22
0.45 0.19 0.31 0.44 0.63 0.75 0.94 1.26 1.57 1.88 2.20 2.52 3.08
0.46 0.18 0.30 0.42 0.60 0.72 0.90 1.20 1.50 1.80 2.10 2.41 2.95
0.47 0.17 0.28 0.40 0.58 0.69 0.86 1.15 1.44 1.72 2.01 2.31 2.82
0.48 0.17 0.27 0.39 0.55 0.66 0.82 1.10 1.38 1.65 1.93 2.21 2.71
0.49 0.16 0.26 0.37 0.53 0.64 0.79 1.06 1.33 1.59 1.85 2.12 2.60
0.50 0.15 0.25 0.36 0.51 0.61 0.76 1.01 1.27 1.52 1.78 2.04 2.50
0.51 0.15 0.24 0.34 0.49 0.59 0.73 0.98 1.22 1.46 1.71 1.96 2.40
0.52 0.14 0.23 0.33 0.47 0.57 0.70 0.94 1.18 1.41 1.65 1.88 2.31
0.53 0.14 0.22 0.32 0.45 0.54 0.67 0.91 1.13 1.35 1.59 1.81 2.22
0.54 0.13 0.22 0.31 0.44 0.52 0.65 0.87 1.09 1.30 1.53 1.75 2.14
0.55 0.13 0.21 0.29 0.42 0.51 0.63 0.84 1.05 1.26 1.47 1.68 2.06
0.56 0.12 0.20 0.28 0.41 0.49 0.60 0.81 1.02 1.21 1.42 1.62 1.99
0.57 0.12 0.19 0.27 0.39 0.47 0.58 0.78 0.98 1.17 1.37 1.57 1.92
0.58 0.11 0.19 0.27 0.38 0.45 0.56 0.76 0.95 1.13 1.32 1.51 1.85
0.59 0.11 0.18 0.26 0.37 0.44 0.54 0.73 0.91 1.09 1.28 1.46 1.79
0.60 0.11 0.18 0.25 0.35 0.42 0.53 0.71 0.88 1.06 1.24 1.41 1.73
  • 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

High Thermal And Electrical Conductivity Of CuNi Alloy CuNi2 NC005 2.0802 C70260 For Heat ExchangerHigh Thermal And Electrical Conductivity Of CuNi Alloy CuNi2 NC005 2.0802 C70260 For Heat ExchangerHigh Thermal And Electrical Conductivity Of CuNi Alloy CuNi2 NC005 2.0802 C70260 For Heat Exchanger


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