EN
Description
When measuring the temperature of high-temperature fuel, gas, coal-fired systems, as well as various high-temperature kilns, high-temperature salt bath furnaces used for heat treatment, strong corrosion of protective tubes by high temperature and oxygen, sulfur, tar, oxygen ions, etc. will be encountered. In addition to being able to withstand high-temperature physical damage, it is also required to be able to withstand chemical damage. In harsh environments such as high temperature and high corrosion, reaction sintered silicon carbide ceramic protective tubes are commonly used.
Various chemical processes require the temperature of the process to be measured at all times, especially the temperature of various liquids. Silicon carbide material has oxidation resistance, corrosion resistance, excellent thermal shock resistance, and good thermal conductivity, making it an excellent material for making thermocouple protection tubes. It can be used in high-temperature acid-base furnaces with hydrochloric acid, nitric acid, and sulfuric acid for a long time.
Specifications
KCE® SiSiC/RBSiC Technical Data Sheet
| Technical Parameters | Unit | SiSiC/RBSiC Value |
| Silicon Carbide content | % | 85 |
| Free Silicon content | % | 15 |
| Bulk Density 20°C | g/cm³ | ≥3.02 |
| Open Porosity | Vol % | 0 |
| Hardness HK | kg/mm² | 2600 |
| Flexural Strength 20°C | MPa | 250 |
| Flexural Strength 1200°C | MPa | 280 |
| 20 – 1000°C (Coefficient of Thermal Expansion) | 10–6 K–1 | 4.5 |
| Thermal Conductivity 1000°C | W/m.K | 45 |
| Static 20°C(Modulus of Elasticity ) | GPa | 330 |
| Working temperature | °C | 1300 |
| Max. Service Temp (air) | °C | 1380 |
Applications
Can be used in blast furnace hot blast stove, various coal chemical gasifiers, high-temperature garbage incinerators, sulfur incinerators; Can be used in high-temperature acid-base furnaces.
Advantages
KCE brand Silicon carbide protective tubes can operate under air conditions of 1300 ℃ that other materials cannot meet;
The excellent oxidation resistance and wear resistance of KCE brand silicon carbide protective tubes can achieve a long service life;
KCE brand Silicon carbide protective tubes have excellent thermal shock resistance and are capable of rapid thermal cycling, heating, and cooling;
