
Zys Diameter 1 mm Si3n4 Ceramic Ball 1mm Silicon Nitride Ceramic Bearing Balls G5 Grade Precision Bearing Balls
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 ℃.
Our mission is to design and manufacture comprehensive, reliable and high-quality machinability alumina silicate ceramic rods, nutec ceramic fiber modules, alumina ceramic sharpening rods to domestic and international customers. We will make persistent efforts, accept customers' opinions with an open mind, improve our services and products, and think for customers wholeheartedly. We will provide high-quality and efficient products with continuous innovation and provide the best service for the development and expansion of the market. With the corporate image of 'integrity, pragmatism, and innovation', we provide users with the most comprehensive guidance and after-sales tracking services to meet actual needs and become your most reliable partner.
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 insist on improving production technology, ensuring safety production and improving the quality of our Zys Diameter 1 mm Si3n4 Ceramic Ball 1mm Silicon Nitride Ceramic Bearing Balls G5 Grade Precision Bearing Balls. We widely disseminate our corporate philosophy and development strategy through our corporate culture. We take pride in our professionalism and show our value through our work process and performance.
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