
Ceramic Bearing High Temperature and Corrosion Resistant 6204ce
Si3N4 Ceramics is a new type of non-metallic ceramic material. It is characterized by high strength at room temperature and high temperature, and the strength of Si3N4 can be maintained at 1200 ℃.
With our people-oriented management concept and professional technology, we continue to provide customers with high-quality alumina ceramic tile manufacturers, furnace heating element replacement, ceramic insulation beads for heating elements. Our company will adhere to the path of technological innovation and gradually establish the influence of our brand. We have a modern enterprise management mode, scientific and efficient company management system system. We adhere to the customer-centered, rapid response to customer needs, continue to create value for customers and society, customer success is the achievement of our own. Our domestic and international markets continue to expand, our business performance has improved significantly, and the quality of our team continues to improve.
Product Description
Si3N4 Ceramics is a new type of non-metallic ceramic material. One of the popular product of Si3N4 ceramics is Si3N4 tube. The tubes are mainly used in conjunction with thermocouples to protect them. It allows the thermocouple to operate properly in special environments and to resist high pressures and high flow rates.
Process Method
It uses silicon powder as raw material and is first made into the desired shape using the usual molding method. Initial nitriding is done in nitrogen at 1200°C, so that part of the silicon powder reacts with nitrogen to form silicon nitride. This way the whole body already has some strength. It is then nitrided a second time in a high-temperature furnace at 1350°C to 1450°C to react with the silicon nitride.
Specifications
Thermocouple protection tube: diameter Φ12-80mm, length 600-1800m

Data Sheet
Items | Data |
Sintering method | gas pressure sinter |
Density | >3.2g/cm3 |
Si3N4 content | >92% |
Flexural strength | >750Mpa |
Compressive strength | >1500Mpa |
Thermal conductivity (W/mk) | >22 |
Porosity | 0 |
Thermal expansion coeff. (RT-1000℃) | 3.2 |
Max temperature in air | 1400℃ |
Hardness (HRA) | >92 |
Q&A
1. How long is the service time of Si3N4 ceramics?
It will be different as per your application. The general period is 25-30days.
2. What is the payment terms?
Our payment terms are T/T, L/C or as per your request.
Our company has a sound process, we produce good quality, high-grade Ceramic Bearing High Temperature and Corrosion Resistant 6204ce in order to meet the market demand. We are committed to providing quality products and services, creating greater value for customers, and actively developing cooperation and exchanges with international counterparts to lay a good foundation for internationalization. Our company always adheres to the people-oriented development concept and vigorously implements the strategy of strengthening the enterprise with talents.
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