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Shanghai Tankii Alloy Material Co.,Ltd
Shanghai Tankii Alloy Material Co.,Ltd
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Solid Bare Copper Nickel Alloy Wire Pure Nickel Wire Bars OD 4 - 100mm

Product Details

Place of Origin: China

Brand Name: TANKII

Certification: ISO

Model Number: Constantan

Payment & Shipping Terms

Minimum Order Quantity: 20kg

Packaging Details: Strip/Wire/Ribbon diameter 0.005mm-1.0mm packing in spool, big than 1.50mm packing in coil

Payment Terms: Western Union, T/T, L/C

Supply Ability: 20,000kg/Week

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Specifications
Highlight:

nickel copper alloy

,

copper and nickel alloy

State:
Soft Annealled Or Hard
Sample Supply:
Small Sample Supply Is Available
Conductor Material:
Solid Bare Copper
Type:
Foil
Constantan Max:
≤500
Application::
Strain Foil
State:
Soft Annealled Or Hard
Sample Supply:
Small Sample Supply Is Available
Conductor Material:
Solid Bare Copper
Type:
Foil
Constantan Max:
≤500
Application::
Strain Foil
Description
Solid Bare Copper Nickel Alloy Wire Pure Nickel Wire Bars OD 4 - 100mm

    Size 0.005mm * 100mm Constantan(CuNi40) Foil Use For Strain Foil

1. constantan 

Product Details: 
Grade: 6J40 also known as cuni40
Nature: With 40% nickel, 1.5% copper manganese alloy 

 

Constantan is a type of resistance alloy, which is made up of copper and nickel as the main components.

It has a low temperature coefficient of resistance (TCR), and a wide operating temperature range (below 500°C). It has 

good properities on mechanical working, high resistance of corrosion. It is used for variable and strain resistance of 

corrosion. It is used for variable and strain resisitance elements in alternative instruments.

 

Our products have the following features: Stable performance, high resistivity, high working temperature, allowable high surface load, small specific gravity and reasonable price. 

 

2. constantan dimension available

 

Wire: 0.018-10mm Ribbons: 0.05*0.2-2.0*6.0mm 
Strip: 0.005*5.0-5.0*250mm 
Bars: OD 4-100mm 

 

3. Chemical composition and main properties of constantan 

 

 

Name

Code

Main Composition (%)

Density

(g/mm2)

Cu

Mn

Ni

Cr

Constantan

6J40

Bal.

1-2

39-41

-

8.9

 

 

 

Type

  (20º C )

Resistivity

(μ Ω. M)

   (20º C )

Temp. Coff. 

of 

Resistance

(α×10-6/°C)

(0-100º C )

Thermal EMF

vs. Copper 

(μV/º C  )

 

    Max. 

Working 

Temp.(º C )

 

Elongation

(%)

Tensile 

Strength

(Mpa)

Constantan

6J40

0.48 ±0.03

+40

45

≤500

≥15

≥390

 

Charact

eristic

Resistivity 

( 200C μΩ.m)

Max.working

Temperature 

( 0C)

Tensile

 Strength

 (Mpa)

Melting 

point 

(0C)

Density 

( g/cm3)

TCR x10-6/

 0C (20~600

 0C)

EMF vs Cu

 (μV/ 0C) 

(0~100 0C)

Alloy 

Nomenc

lature

NC003 (CuNi1)

0.03

200

210

1085

8.9

<100

-8

NC005 (CuNi2)

0.05

200

220

1090

8.9

<120

-12

NC010 (CuNi6)

0.1

220

250

1095

8.9

<60

-18

NC012 (CuNi8)

0.12

250

270

1097

8.9

<57

-22

NC015 (CuNi10)

0.15

250

290

1100

8.9

<50

-25

NC020 (CuNi14)

0.2

300

310

1115

8.9

<30

-28

NC025 (CuNi19)

0.25

300

340

1135

8.9

<25

-32

NC030 (CuNi23)

0.3

300

350

1150

8.9

<16

-34

NC035 (CuNi30)

0.35

350

400

1170

8.9

<10

-37

NC040 (CuNi34)

0.4

350

400

1180

8.9

0

-39

NC050 (CuNi44)

0.5

400

420

1200

8.9

<-6

-43

 

4. cuni resistance alloy application

 

CuNi alloy wires and strip typically used in heating cables, fuses, resistors and various types of controllers, electric car controller, the 

instruments and meters, the integrated circuit, the sample electric current, the resistor. And low pressure resistance and so on.

Constantan Tradenames:

Cuprothal, Alloy 294, Cuprothal 294, Nico, MWS-294, Cupron, Copel, Alloy 45,

Neutrology, Advance, CuNi 102, Cu-Ni 44, Konstantan

Solid Bare Copper Nickel Alloy Wire Pure Nickel Wire Bars OD 4 - 100mm 0

Resistance Alloy- Constantan Sizes / Temper Capabilities

Condition: Bright, Annealed, Soft 
Wire diameter 0.02mm-1.0mm packing in spool, big than 1.0mm packing in coil
Rod, Bar diameter 1mm-30mm 
Strip: Thickness 0.05mm-7mm, Width 1mm-280mm 

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