Nichrome Electrical Resistance Wire

Chemical content%: 60.00 nickel, 15.00 chromium, barite


Diameter 0.025mm-20mm


Resistivity: 1.12 ohm mm2 / M


Maximum continuous service temperature: 1150 C


Density: 8.2g/cm3


Melting point: 1390 C


镍铬电阻丝.jpg

detailed description:


(1) chemical composition and properties:


Propertes/Grade

NiCr 80/20

NiCr 70/30

NiCr 60/15

NiCr 35/20

NiCr 30/20

Main Chemical  Composition(%)

Ni

Bal.

Bal.

55.0-61.0

34.0-37.0

30.0-34.0

 

Cr

20.0-23.0

28.0-31.0

15.0-18.0

18.0-21.0

18.0-21.0

 

Fe

≤ 1.0

≤ 1.0

Bal.

Bal.

Bal.

Max Working Temperature(ºC)

1200

1250

1150

1100

1100

Resistivity at 20ºC
     (μ Ω · m)

1.09

1.18

1.12

1.04

1.04

Density(g/cm3) 

8.4

8.1

8.2

7.9

7.9

Thermal Conductivity
     (KJ/m· h· ºC)

60.3

45.2

45.2

43.8

43.8

Coefficient of Thermal Expansion(α × 10-6/ºC)

18

17

17

19

19

Melting Point(ºC)

1400

1380

1390

1390

1390

Elongation(%)

> 20

> 20

> 20

> 20

> 20

Micrographic Structure

austenite

austenite

austenite

austenite

austenite

Magnetic Property

nonmagnetic

nonmagnetic

nonmagnetic

nonmagnetic

nonmagnetic



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