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
Type |
Cr20Ni80 |
Cr30Ni70 |
Cr15Ni60 |
Cr20Ni35 |
Cr20Ni30 |
Cr25Ni20 |
Main Chemical composition |
Ni |
Rest |
Rest |
55.0-61.0 |
34.0-37.0 |
30.0-34.0 |
19.0-22.2 |
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 |
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 |
Elongation(%) |
>20 |
>20 |
>20 |
>20 |
>20 |
>20 |
Melting point (approx.)(ºC) |
1400 |
1380 |
1390 |
1390 |
1390 |
1400 |
Thermal conductivity(KJ/m•h•ºC) |
60.3 |
45.2 |
45.2 |
43.8 |
43.8 |
43.8 |
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 resisitance 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.
FACTORY
As your special request
1 Material and model of wire
2 Diameter, such as thickness and width;
3 Quantity;weight