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Shanghai Tankii Alloy Material Co.,Ltd
Shanghai Tankii Alloy Material Co.,Ltd
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Cuprothal 294 Precision Alloy Copper Nickel Alloy Strip CuNi40 / CuNi44 Constant

Shanghai Tankii Alloy Material Co.,Ltd
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Cuprothal 294 Precision Alloy Copper Nickel Alloy Strip CuNi40 / CuNi44 Constant

Brand Name : TANKII
Model Number : Constantan
Certification : ISO
Place of Origin : China
MOQ : 20kg
Payment Terms : Western Union, T/T, L/C
Supply Ability : 20,000kg/Week
Packaging Details : Strip/Wire/Ribbon diameter 0.005mm-1.0mm packing in spool, big than 1.50mm packing in coil
State : Soft annealled or Hard
Sample supply : small sample supply is available
Conductor Material : Solid bare copper
Chemical Composition : Cu, Mn, Ni
constantan resistivity : 0.48±0.03
constantan Max. working temp : ≤500
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CuNi40 Cuprothal 294 Copper Nickel Alloy Constantan Strip CuNi40 / CuNi44 Constant Size 0.005mm * 100mm

Copper nickel alloy includes : Constantan CuNi40 (6J40), CuNi1, CuNi2, CuNi6, CuNi8, CuNi10, CuNi14, CuNi19,

CuNi23CuNi30, CuNi34, CuNi44.


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.


Resistance Alloy- Constantan Sizes / Temper Capabilities

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


Product Tags:

soft magnetic alloy

      

precision tubing

      

kovar alloy

      
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Cuprothal 294 Precision Alloy Copper Nickel Alloy Strip CuNi40 / CuNi44 Constant Images

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