6J40

Constantan is a type of resistance alloy, which is made up of copper and nickel as the maim components. It has a low temperature coefficient of resistance(TCR),and a wide operating temperature range(below 500).It has good properties on mechanical working ,high resistance of corrosion.

DETAIL

Constantan is a type of resistance alloy, which is made up of copper and nickel as the maim components. It has a low temperature coefficient of resistance(TCR),and a wide operating temperature range(below 500).It has good properties on mechanical working ,high resistance of corrosion.

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

Manganin is a Copper-manganese-nickel Resistance alloy: It combines all the properties required of a precision electrical resistance alloy such as high resistivity, low temperature coefficient of resistance, very low thermal effect against copper and good performance of electrical resistance over long periods of time.

 

MAIN TECHNICAL CHARACTERISTICS OF CONSTANTAN AND MANGANIN ALLOY


Grade

CONSTANTAN

6J12

MANGANIN

6J8

MANGANIN

6J13

MANGANIN

6J40

6J12

6J8

6J13

Main chemical composition

Mn 1~2 11~13 8~10 11~13

Ni

39~41

2~3

-

2~5

Cu

余量Bal

余量Bal

余量Bal

余量Bal

Max Working Temperature

5~500

5~45

10~80

10~81

Density

8.88

8.44

8.70

8.40

Resistivity

0.48±3%

0.47±3%

0.35±5%

0.44±4%

Elongation

≥15

≥15

≥15

≥15

Resistance Temperature Coefficient

-40~+40

-3~+20

-5~+10

0~+40

Thermo EMF

45

1

2

2