Introduction Si3N4 Silicon Nitride thermocouple protection tube
Silicon nitride ceramic has the best thermal conductivity when used for aluminum melting. It’s quickly response to the temperature sensor in aluminum and other nonfrrous metals melting. It has excellent shock resistance. Light weight make it easier to operate and maintain. It can be used for many years.
Regular Sizes:
| Length | Outside diameter(mm) | Innerside diameter(mm) |
| 200 | 28 | 16 |
| 300 | 28 | 16 |
| 350 | 28 | 16 |
| 400 | 28 | 16 |
| 450 | 28 | 16 |
| 500 | 28 | 16 |
| 600 | 28 | 16 |
| 700 | 28 | 16 |
| 800 | 28 | 16 |
| 900 | 28 | 16 |
| 1000 | 28 | 16 |
| 1100 | 28 | 16 |
| 1200 | 28 | 16 |
Characteristics Si3N4 Silicon Nitride thermocouple protection tube
- Silicon nitride ceramic can help customers to make high quality die casting parts owe to its inertness against molten aluminum.
- Due to the stable property of silicon nitride material, the equipment running times will not be reduced when replacing new parts.
- Comparing with cast iron, the silicon nitride ceramic is light. It makes handling eay, helps customers to reduce the work intensity.
- Help to ensure the stable qualit of die casting parts.
Technical Data Sheet of Si3N4 Silicon Nitride thermocouple protection tube
| Item | Unit | F-200 | F-500 |
| Bulk density | g/cm3 | 3.2 | 3.2 |
| Water absorption | % | 0 | 0 |
| Bending strength | Mpa | 750 | 800 |
| Young modulus | Gpa | 280 | 290 |
| Fracture toughness | Mpa.m1/2 | 6.5 | 7 |
| Poisson’s ratio | – | 0.28 | 0.28 |
| Vickers hardness | Gpa | 15 | 15 |
| Coefficient of linear expansion | x10-6℃ | 3.4 | 3.5 |
| Thermal conductivity | W/(m.k) | 26 | 50 |
| Specific heat | J/(g.k) | 0.65 | 0.61 |
| Volume resistivity | Ω.cm | >10^14 | >10^14 |
| Heat shock resistance | ℃ | 800 | 900 |
| Max operation temp. | ℃ | 1150 | 1150 |
