Kanthal® Super 1800 Heating Elements are a unique material combining the best properties of metallic and ceramic materials. Like metallic materials it has good heat and electric conductivity and like ceramics it withstands corrosion and oxidation and has low thermal expansion. It is not affected by thermal shock and is strong enough to withstand many years of service as a heating element.
Typical area of applications for Super 1800 includes laboratory furnaces, testing equipment and high temerpature sintering production furnaces.
Mechanical properties
| Hardness | Bending strength | Compression strength | Fracture toughness |
|---|---|---|---|
| HV | KIC | ||
| GPa | MPa | MPa | MPa√m |
| 9 | 450 | 1400-1500 | 3-4 |
| Temperature °C (°F) | MPa |
|---|---|
| 1500 (2820) | 100 |
Physical properties
| Density g/cm3 (lbs/in3) | 5.6 (0.20) |
|---|---|
| Porosity % | < 1 |
| Emissivity | 0.70-0.80 |
| Temperature °C (°F) | 20-600 (68-1110) | 600-1200 (1110-2190) |
|---|---|---|
| W m-1 K-1 | 30 | 15 |
| Coefficient of linear expansion 10-6/K | 7-8 |
|---|---|
| Specific heat capacity at 20°C (68°F) kJ kg-1 K-1 | 0.42 |
| Maximum operating temperature in air °C (°F) | 1800 (3270) |
|---|