Nikrothal® LX is an austenitic nickel-chromium alloy (NiCr alloy) for use at temperatures up to 300°C (570°F). The alloy is characterized by high resistivity in combination with low temperature coefficient of resistance.
Nikrothal® LX is typically used for electronic components.
Chemical composition
| C % | Si % | Mn % | Cr % | Fe % | Al % | Ni % | Cu % | |
|---|---|---|---|---|---|---|---|---|
| Nominal composition | Bal. | |||||||
| Min | - | 0.50 | 2.1 | 18.0 | - | 2.40 | - | 1.60 |
| Max | 0.02 | 0.70 | 2.3 | 20.0 | 0.10 | 2.60 | - | 1.80 |
Mechanical properties
| Yield strength | Tensile strength | Elongation |
|---|---|---|
| Rp0.2 | Rm | A |
| MPa | MPa | % |
| 800-1200 | 950-1400 | 3-25 |
Physical properties
| Density g/cm3 | 8.30 |
|---|---|
| Electrical resistivity at 20°C Ω mm2/m | 1.33 |
| Temperature range | Standard tolerance | Special tolerance |
|---|---|---|
| °C | PPM/°C | PPM/°C |
| -55 - +150 | -10 - +10 | -5 - +5 |
| Thermal electromotive force against Cu μV/°C | +1.0 |
|---|
| Temperature °C | Thermal Expansion x 10-6/K |
|---|---|
| 20 - 300 | 14 |
| Temperature °C | 20 |
|---|---|
| W m-1 K-1 | 15 |
| Temperature °C | 20 |
|---|---|
| kJ kg-1 K-1 | 0.46 |
| Melting point °C | 1390 |
|---|---|
| Max continuous operating temperature in air °C | 1150 |
| Magnetic properties | The material is slightly magnetic |
| Emissivity - fully oxidized material | 0.88 |