
Factory 1.5mm 1.588mm 1.984mm G3-G100 High-Precision for Bearing Si3n4 Silicon Carbide Ceramic Ball
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 ℃.
We are committed to the belief that designing and manufacturing long-lasting electric water heater element, coors perforated ceramic alumina sheet, ceramic tube price for our customers is the mission of a responsible company. We grasp the market opportunities, respect the objective laws of the market, work in a pragmatic way, to maximize the benefits of the first standard. We adhere to meet the needs of users as the goal, to the user's suggestions and opinions as the spur, and constantly improve the process, expand the varieties and specifications, and constantly improve the quality management system of the enterprise.
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.
Well-run devices, expert profits group, and better after-sales companies; We have been also a unified huge family, everybody keep on with the organization worth 'unification, determination, tolerance' for Factory 1.5mm 1.588mm 1.984mm G3-G100 High-Precision for Bearing Si3n4 Silicon Carbide Ceramic Ball. Should you be fascinated in any of our products and services, remember to do not hesitate to make contact with us. Our company takes strict management as the way of enterprise management, actively introduces advanced management ideas, establishes and improves the internal management system.
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