R63C is a nickel alloy (Ni alloy) with high melting point and good conductivity. The alloy is characterized by a low discharge potential as well as good corrosion resistance in carburizing and sulphidizing atmospheres.
R63C is typically used as a spark plug electrode.
Chemical composition
| Ni % | Si % | Mn % | |
|---|---|---|---|
| Nominal composition | 95 | 1 | 4 |
Mechanical properties
| Tensile strength | |
|---|---|
| Rm | |
| MPa | |
| Min | 440 |
| Max | 1200 |
Physical properties
| Density g/cm3 | 8.72 |
|---|---|
| Electrical resistivity at 20°C Ω mm2/m | 0.22 |
| Temperature coefficient of resistance (20- 250 °C) (x 10-6/K) | 3000 |
| Temperature °C | Thermal Expansion x 10-6/K |
|---|---|
| 20 - 500 | 15.2 |
| Temperature °C | 100 |
|---|---|
| W m-1 K-1 | 38.5 |
| Temperature °C | 20 |
|---|---|
| kJ kg-1 K-1 | 0.203 |
| Melting point °C | 1430 |
|---|
