
Si3n4 Silicon Nitride Ceramic Bearing Balls G5
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 ℃.
Since the establishment of the company, we continue to update equipment, improve production technology, adhere to high starting point and high standards, so that the technical indicators of our products have always been ahead of the ceramic fiber blanket suppliers, bulk ceramic fiber density, ceramic fiber paper kiln shelf liner industry. Please feel free to contact us if you are interested. We are committed to providing advanced products and professional services to more countries and people around the world. Relentless pursuit of perfection in product quality management and marketing service system construction has made our company larger and stronger.
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.
We promise to offer all customers with safe, assured and high-quality Si3n4 Silicon Nitride Ceramic Bearing Balls G5 and services with solid professional knowledge and scientific and effective service concepts. The foothold of the company's development is customer satisfaction, which is the starting point and belonging point of all our work. Our company has a wide range of products with complete specifications, which can truly meet the 'one-stop' procurement needs of customers.
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