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Copper-nickel (CuNi) Alloys Wire

Copper-nickel (CuNi) Alloys Wire

Superb Heater Technology has been focused on the production of copper-nickel (cuni) alloys wire since 1985, which is well-known as one of the leading manufacturers and suppliers of copper-nickel (cuni) alloys wire. In the past years, we owned strong reputation for the high quality, reliable...

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Superb Heater Technology has been focused on the production of copper-nickel (cuni) alloys wire since 1985, which is well-known as one of the leading manufacturers and suppliers of copper-nickel (cuni) alloys wire. In the past years, we owned strong reputation for the high quality, reliable performance and strong durability of our products. Should you are interested, please feel free to contact our factory.

Electric resistance alloy

Copper-nickel (CuNi) alloys

CuNi alloy is a name of copper-nickel alloy with medium resistivity for medium-low temperature resistances. The alloy is suitable for use at temperatures up to 400°C. Resistance wire resists the flow of electricity. And it comes in various forms which include resistance tape, resistance ribbon or resistance strand. Ideal applications areas are all types of resistances used at low temperature.

Application:

electrical resistors, potentiometers, heating wires, heating cables and underground heating mesh; Braiding and shielding in flexible coaxial cable and communication cable, a variety of audio and video cable ,vehicle signal cable, network cable ,data transmission cables and so on.

Cu-Ni Low Resistance Alloy

Properties\ Grade

CuNi1

CuNi2

CuNi6

CuNi8

CuMn3

CuNi10

CuNi14

CuNi19

CuNi23

CuNi30

CuNi34

CuNi44

Main Chemical Composition%

Ni

1

2

6

8

_

10

14

19

23

30

34

44

Mn

_

_

_

_

3


0.3

0.5

0.5

1.0

1.0

1.0

Cu

Rest

Rest

Rest

Rest

Rest


Rest

Rest

Rest

Rest

Rest

Rest

Max Work Temp(℃)

200

200

200

250

200

250

300

300

300

350

350

400

Resisivity 20℃(Ωmm2/m)

0.03

0.05

0.10

0.12

0.12

0.15

0.20

0.25

0.30

0.35

0.40

0.49

Density(g/cm3)

8.9

8.9

8.9

8.9

8.8

8.9

8.9

8.9

8.9

8.9

8.9

8.9

Thermal Conductivity (α×10-6/℃)

<100

<120

<60

<57

<38

<50

<30

<25

<16

<10

<0

<-6

Tensile Strength (Mpa)

≥210

≥220

≥250

≥270

≥290

≥290

≥310

≥340

≥350

≥400

≥400

≥420

EMF vs Cu (μV/oC)(0~100oC)

-8

-12

-12

-22

_

-25

-28

-32

-34

-37

-39

-43

Melting Point (℃)

1085

1090

1095

1097

1050

1100

1115

1135

1150

1170

1180

1280

Micrographic Structure

austenite

austenite

austenite

austenite

austenite

austenite

austenite

austenite

austenite

austenite

austenite

austenite

Magnetic Property

non

non

non

non

non

non

non

non

non

non

non

non

Technical parameters of Cu-Ni resistance heating wire

Dia.

Sectional

Surface per meter

Weight per meter

Length per kg.

CuNi6

CuNi10

CuNi23

CuNi44

Area

(kg/m)

(m/kg)

(NC010)

(NC015)

(NC030)

(NC050)

(mm²)



Resistance per meter

Resistance per meter

Resistance per meter

Resistance per meter




(Ω/m)

(Ω/m)

(Ω/m)

(Ω/m)

0.1

0.00785

3.14

0.000069865

14313.32

12.739

19.108

38.217

62.42

0.12

0.011304

3.77

0.000100606

9939.8

8.846

13.27

26.539

43.347

0.15

0.0176625

4.71

0.000157196

6361.47

5.662

8.493

16.985

27.742

0.17

0.0226865

5.34

0.00020191

4952.71

4.408

6.612

13.224

21.599

0.19

0.0283385

5.97

0.000252213

3964.91

3.529

5.293

10.586

17.291

0.21

0.0346185

6.6

0.000308105

3245.65

2.889

4.333

8.666

14.154

0.25

0.0490625

7.85

0.000436656

2290.13

2.038

3.057

6.115

9.987

0.27

0.0572265

8.48

0.000509316

1963.42

1.747

2.621

5.242

8.562

0.29

0.0660185

9.11

0.000587565

1701.94

1.515

2.272

4.544

7.422

0.31

0.0754385

9.74

0.000671403

1489.42

1.326

1.988

3.977

6.495

0.35

0.0961625

11

0.000855846

1168.43

1.04

1.56

3.12

5.096

0.4

0.1256

12.57

0.00111784

894.58

0.796

1.194

2.389

3.901

0.45

0.1589625

14.14

0.001414766

706.83

0.629

0.944

1.887

3.082

0.5

0.19625

15.71

0.001746625

572.53

0.51

0.764

1.529

2.497

0.6

0.2826

18.85

0.00251514

397.59

0.354

0.531

1.062

1.734

0.7

0.38465

22

0.003423385

292.11

0.26

0.39

0.78

1.274

0.8

0.5024

25.1

0.00447136

223.65

0.199

0.299

0.597

0.975

0.9

0.63585

28.3

0.005659065

176.71

0.157

0.236

0.472

0.771

1

0.785

31.4

0.0069865

143.13

0.127

0.191

0.382

0.624

1.2

1.1304

37.7

0.01006056

99.4

0.088

0.133

0.265

0.433

1.4

1.5386

44

0.01369354

73.03

0.065

0.097

0.195

0.318

1.6

2.0096

50.3

0.01788544

55.91

0.05

0.075

0.149

0.244

1.8

2.5434

56.5

0.02263626

44.18

0.039

0.059

0.118

0.193

2

3.14

62.8

0.027946

35.78

0.032

0.048

0.096

0.156

2.2

3.7994

69.1

0.03381466

29.57

0.026

0.039

0.079

0.129

2.5

4.90625

78.5

0.043665625

22.9

0.02

0.031

0.061

0.1

2.8

6.1544

88

0.05477416

18.26

0.016

0.024

0.049

0.08

3

7.065

94.2

0.0628785

15.9

0.014

0.021

0.042

0.069

3.5

9.61625

110

0.085584625

11.68

0.01

0.016

0.031

0.051

4

12.56

125.7

0.111784

8.95

0.008

0.012

0.024

0.039

4.5

15.89625

141.4

0.141476625

7.07

0.006

0.009

0.019

0.031

5

19.625

157.1

0.1746625

5.73

0.005

0.008

0.015

0.025

5.5

23.74625

172.8

0.211341625

4.73

0.004

0.006

0.013

0.021

6

28.26

188.5

0.251514

3.98

0.004

0.005

0.011

0.017

6.5

33.16625

204

0.295179625

3.39

0.003

0.005

0.009

0.015

7

38.465

220

0.3423385

2.92

0.003

0.004

0.008

0.013

Customary table for wire gauge


SWG

BWG

AWG

in

mm

in

mm

in

mm

6

0.192

4.877

0.203

5.16

O.1620

4.11

7

O.176

4.47

O.180

4.57

0.1443

3.67

8

O.160

4.064

O.165

4.19

0.1285

3.26

9

0.144

3.658

0.148

3.76

0.1144

2.91

10

O.128

3.251

O.134

3.4

0.1019

2.59

ll

O.116

2.946

O.120

3.05

0.09074

2.3

12

O.104

2.642

O.109

2.77

0.08081

2.05

13

0.092

2.337

0.095

2.41

0.07196

l-83

14

0.08

2.032

0.083

2.11

0.06408

1.63

15

0.072

1.829

0.072

1.83

0.05707

1.45

16

0.064

1.626

0.065

1.65

0.05082

1.29

17

0.056

1.422

0.058

1.47

0.04526

1.15

18

0.048

1.219

0.049

1.24

0.0403

1.02

19

0.04

1.016

0.042

1.07

0.03589

0.9l

20

0.036

0.914

0.035

0.89

0.03196

0.812

2l

O.032

0.813

0.032

O.8l

0.02846

0.723

22

0.028

0.711

0.028

0.71

0.02535

0.644

23

0.024

0.61

0.025

O.64

0.02257

O.573

24

0.022

O.559

O.022

0.56

0.0201

0.511

25

0.02

O.508

0.02

0.5l

O.01790

0.455

26

O.018

0.457

0.018

0.46

0.01594

0.405

27

0.0164

0.4166

0.016

0.41

0.0142

O.361

28

0.0148

O.3759

0.014

0.36

0.01264

O.321

29

0.0136

0.3454

0.013

0.33

0.01126

O.286

30

0.0124

0.315

0.012

0.3

0.01003

0.255

31

0.0116

0.2946

0.01

0.25

0.008928

0.227

32

0.0108

0.2743

0.009

0.23

0.00795

0.202

33

0.01

0.254

0.008

O.20

0.00708

0.18

34

0.0092

O.2337

0.007

O.18

O.006304

0.16

35

0.0084

O.2134

0.005

0.13

0.005615

O.143

36

0.0076

O.1930

O.004

0.1

0.005

0.127


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