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Silicon Carbide Sic Stationary /Rotating Seal Ring for Mechanical Seals
Silicon Carbide (SiC) seal rings are widely used in mechanical seals due to their exceptional performance and durability. These rings are available in tailored-made specifications, with standard density, hardness, flexural strength, compressive strength, and elastic modulus. The material is sourced from China, and the brand can be Junty or as per the client's requirements. Packaging is standard or customizable based on customer needs.
The product comes in various specifications such as SIC, RBSIC, SSIC, and SIC+C. It is manufactured using high-quality raw materials and is suitable for a wide range of industrial applications. The HS code for this product is 6914900000.
Silicon Carbide is one of the most popular tribo-materials in the industry, known for its outstanding properties:
- Excellent wear resistance
- High corrosion resistance
- Low friction coefficient
- Low thermal expansion coefficient
- High thermal conductivity
- Hardness higher than Tungsten Carbide
There are different grades of Silicon Carbide available:
- **Reaction Bonded Silicon Carbide (RB SiC)**: A cost-effective option with good wear resistance and chemical stability.
- **Sintered Silicon Carbide (SSiC)**: Free of free silicon, making it ideal for aggressive environments and high-temperature applications.
- **Graphite-Loaded Silicon Carbide**: A composite material that enhances lubricity by adding graphite to RB SiC or SSiC, improving tribological performance.
Here is a comparison of key properties between RB SiC and SSiC:
| Parameter | Unit | RB SiC | SSiC |
|------------------------|----------|----------|----------|
| Density | g/cm³ | 3.0 - 3.05 | 3.1 |
| Free Silicon Content | - | 12% | - |
| Crystal Size | µm | 8 - 20 | 5 - 7 |
| Hardness (HRA) | - | 90 | 93 |
| Compressive Strength | MPa | 2700 | 3000 |
| Flexural Strength | MPa | 400 | 400 |
| Fracture Toughness | MPa√m | 4.3 | 4.5 |
| Elastic Modulus | GPa | 390 | 410 |
| Poisson’s Ratio | - | 0.15 | 0.15 |
| Coefficient of Thermal Expansion | 1×10â»â¶/K | 4.3 | 4.3 |
These seal rings are designed for both stationary and rotating applications, ensuring reliable performance under demanding conditions. They are suitable for use in pumps, valves, and other mechanical systems where high-performance sealing is required. The product is available in standard sizes or customized according to client specifications.