Customization: | Available |
---|---|
Type: | Nickel Wire |
Powder: | Not Powder |
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Packaging Details: | spool-box-wooden case |
Delivery Detail: | 20 days |
Packaging Details: | spool or coil , carton , pallet or wooden case |
Delivery Detail: | as per order quantity or client's requirement |
high resistance nickel chromium alloy nicr 80/20
Nickel-Chrome & Nickel-Chrome-Iron alloy wire
high resistance nickel chromium alloy nicr 80/20 are widely used as the high resistance alloy for electrical heating and wire-wound resistors in metallurgical industry,chemical industry and electrical industry, etc.
high resistance nickel chromium alloy nicr 80/20 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 high resistance nickel chromium alloy nicr 80/20
Type
Performance
|
Cr20Ni80 |
Cr30Ni70 |
Cr15Ni60 |
Cr20Ni35 |
Cr20Ni30 |
Cr25Ni20 |
|
Main
|
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 |
60.3 |
45.2 |
45.2 |
43.8 |
43.8 |
43.8 |
|
Coefficient of lines expansion |
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 |
Note: The various grades of electric resistance alloy material are blended with the amount of rare earth , titanium and other trace elements, to improve the processing performance and extend the period of the uselife .
Note: special specification can be produced as per client's request.
The following is packing the finished products: