Technical Index
specific gravity | 2.6~2.8g/cm³ | bend strength | >300kg |
hardness | >9 MOH′S | Tensile strength | >150kg/cm³ |
porosity rate | <30% | Radiancy | 0.85 |
The influence to Rod surface in different Operating Temperature and Surface Load
atmosphere | Furnace Temperature(°C) | Surface Load(W/cm2) | The influence on the Rod |
Ammonia | 1290 | 3.8 | The action on SiC produces methane and destroys the protection film of SiO2 |
Carbon dioxide | 1450 | 3.1 | Corrode SiC |
Carbon monoxide | 1370 | 3.8 | Absorb carbon powder and influence the protection film of SiO2 |
Halogen | 704 | 3.8 | Corrode SiC and destroy the protection film of SiO2 |
Hydrogen | 1290 | 3.1 | The action on SiC produces methane and destroys the protection film of SiO2 |
Nitrogen | 1370 | 3.1 | The action on SiC produces insulating layer of silicon nitride |
Sodium | 1310 | 3.8 | Corrode SiC |
silicon dioxide | 1310 | 3.8 | Corrode SiC |
Oxygen | 1310 | 3.8 | SiC oxidized |
Water-vapor | 1090-1370 | 3.1-3.6 | The action on SiC produces hydrate of silicon |
Hydrocarbon | 1370 | 3.1 | Absorb carbon powder resulted in Hot pollution |