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  • Contact Person : Mr. Wu Jack
  • Company Name : Hangzhou Keen Technology Co., Ltd.
  • Tel : 0086-571-56599160
  • Address : Zhejiang,Hangzhou,No.69 Wantang Rd.
  • Country/Region : China
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Nickel chromium wire(Cr20Ni80)

Nickel chromium wire(Cr20Ni80)
Product Detailed
Nickel Chromium Wire Nickel-Chrome & Nickel-Chrome-Iron alloy wire The Nickel-Chrome and Nickel-Chrome-Iron alloy wires are

Nickel Chromium Wire Nickel-Chrome & Nickel-Chrome-Iron alloy wire The Nickel-Chrome and Nickel-Chrome-Iron alloy wires are widely used as the high resistance alloy for electrical heating and wire-wound resistors in metallurgical industry,chemical industry and electrical industry, etc. This alloy wire has higher electrical resistance coefficient, good anti-oxidation and anti-corrosion performance, and it also has good mechanical workability and weldability, with a high strength at high temperature. Main characteristics of Ni-Cr and Ni-Cr-Fe electric heating alloys

  

 

          Type   

 

 

 

Performance

 

Cr20Ni80

Cr30Ni70

Cr15Ni60

Cr20Ni35

Cr20Ni30

Cr25Ni20

MainChemical composition

 

Ni

Rest

Rest

55.0-61.0

34.0-37.0

30.0-34.0

19.0-22.0

Cr

20.0-23.0

28.0-31.0

15.0-18.0

18.0-21.0

18.0-21.0

24.0-26.0

Fe

≤1.0

≤1.0

Rest

Rest

Rest

Rest

Max. continuous service temp. of element (ºC)

1200

1250

1150

1100

1100

1050

Resistivity at 20oC (μΩ·m)

1.09±0.05

1.18±0.05

1.12±0.05

1.0±0.05

1.04±0.05

0.95±0.05

Density (g/cm3)

8.40

8.10

8.20

7.90

7.90

7.15

Thermal conductivity(KJ/m·h·ºC)

60.3

45.2

45.2

43.8

43.8

43.8

Coefficient of lines expansion (α×10-6/ºC)

18.0

17.0

17.0

19.0

19.0

19.0

Melting point (approx.)( ºC)

1400

1380

1390

1390

1390

1400

Elongation at rupture (%)

>20

>20

>20

>20

>20

>20

Micrographic structure

austenite

austenite

austenite

austenite

austenite

austenite

Magnetic properties

nonmagnetic

nonmagnetic

nonmagnetic

Weak magnetic

Weak magnetic

Weak magnetic

 

 

Nickel chromium wire(Cr20Ni80)



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