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Silicon Carbide Gasket
SiC Ceramic Gasket
Reaction-bonded Silicon carbide has the advantages of wear resistance, high-temperature resistance, good self-lubrication, high mechanical strength, strong chemical corrosion resistance, and high PV value. It can be used in high-temperature environments up to 1350°C. It is a commonly used friction material in the mechanical sealing industry and is widely used in petroleum, chemical, automotive, pumps, and valves. Edgetech provides customized specifications for Silicon Carbide Gasket.
Pressureless sintered silicon carbide has high thermal conductivity and excellent thermal shock stability, compared with reaction-bonded silicon carbide, it has better wear resistance, high-temperature resistance, and chemical corrosion resistance, especially used in high-demand food, pharmaceutical, and other industries.
Silicon Carbide Ceramic Properties
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| Type | Pressureless sintered SiC | Reaction Bonded SiC | Recrystallized SiC |
| Bulk Density (g/cm3) | 3.1 | 3.03 | 2.5 |
| Appearance Porosity | <0.2% | <0.1% | <11% |
| Hardness HRA | 92 | 90 | 110 |
| Flexural strength (MPa) | 400 | 350 | 90-100 |
| Compressive strength (MPa) | 2200 | 2000 | >600 |
| Elasticity Modulus (GPa) | 410 | 360 | 240 |
| Thermal expansion (10^-6/C) | 4 | 4.5 | 4.7 |
| Thermal conductivity (W/(m·K)) | 100-120 | 50-100 | 24 |
| Max. Working Temp. (℃) | 1600 | 1380 | 1650 |
| Main characteristics | Fracture Toughness | Chemical Resistance |
High temp. High resistance. High purity |
Applications of Silicon Carbide Gasket
-Semiconductor process tools and fixture
-Mechanical seals
-Various wear parts
-Various corrosion-resistant parts
– Water pump seals
Packing of SiC Ceramics
Our Silicon Carbide Gasket is carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition.

