Silicon Carbide Sealing Ring Description
The silicon carbide sealing ring (SiC ring) is a lightweight ceramic product that exhibits high mechanical strength, with performance metrics comparable to those of diamond. It provides excellent thermal conductivity, low thermal expansion and resistance to acid corrosion. Silicon carbide is an effective ceramic material for applications that require high resistance to erosion and wear. Consequently, the silicon carbide sealing ring is employed in various applications, including spray nozzles, ball jet nozzles and cyclone components.
Silicon carbide is a suitable material for sealing rings and bearings. Silicon carbide sealing rings demonstrate reliable corrosion resistance, high mechanical strength at elevated temperatures and high wear resistance. SAM supplies silicon carbide rings in various sizes as well as other SiC parts.

Silicon Carbide Sealing Ring Specification
Stanford Advanced Materials supplies silicon carbide sealing rings manufactured in various compositions to meet the diverse requirements of our clients. We offer flat silicon carbide rings, single and double stepped silicon carbide rings and custom-manufactured silicon carbide rings with complex geometries.
Type
|
Material
|
Description
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Sintered silicon carbide (S-SiC)
|
SMB1 Essentially pure SiC
|
Purity of SiC > 98%
Hv: 26 GPa
|
SMG1 Graphite impregnated
|
15%~20% graphite content
|
SMP1 Porous
|
Improved friction resistance
|
Reaction-bonded silicon carbide (RB-SiC)
|
SMB2 Basic SiC
|
Purity of SiC > 88%
|
SMG2 Graphite impregnated
|
20%~30% graphite content
|
Silicon Carbide Sealing Ring Advantages
- Good performance under high pressure and elevated temperatures
- High mechanical strength
- Reliable thermal conductivity
- Good corrosion resistance
Silicon Carbide Sealing Ring Applications
- Semiconductors and coatings.
- Flow reactors, heat exchangers, etc.
- Plain ring seals, bearings, axial bearings, etc.
- Mirrors for industrial laser systems.
Packaging of Silicon Carbide Sealing Rings
Our silicon carbide sealing rings are handled carefully to minimise damage during storage and transport, thereby maintaining the quality of our products in their original condition.