Silicon Carbide Seal Faces
Reaction Bonded Silicon Carbide, Sintered Silicon Carbide, Reaction Bonded Silicon Carbide with Graphite, Sintered Silicon Carbide with Graphite, and Sintered Silicon Carbide with Pore
Silicon carbide seal faces have the property of excellent resistant-corrosion, high mechanical strength, high thermal conductivity and good self-lubrication. Silicon carbide seal faces are widely used in many different industries, including spacecraft, machinery, metallurgy, printing and dyeing, foodstuff, pharmaceutical, auto industry and so on. When the silicon carbide seal faces are combined with graphite faces, the friction is the smallest, they can be made into mechanical seals which are able to work in highest working requirements.
Reaction Bonded Silicon Carbide (RB-SiC, SiC),
and Pressureless Sintered Silicon Carbide Seal Faces (SSiC)
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Silicon Carbide Physical Property |
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| Reaction Bonded Silicon Carbide | Sintered Silicon Carbide | Reaction Bonded Silicon Carbide with Graphite | Sintered Silicon Carbide with Graphite | Sintered Silicon Carbide with Pore | ||
| Technical Parameter | SiC (RB-SiC) | SSiC | SiC+C | SSiC+C | QSSiC+C | |
| Hardness | HS | 110 | 115 | ≥105 | ≥110 | ≥100 |
| Porosity Rate | % | <0.3 | <0.2 | <0.5 | <0.5 | <5 |
| Density | g/cm3 | 3.00-3.05 | >3.10 | 2.69-2.90 | 2.70-3.0 | 2.65 |
| Compressive Strength | MPa | >2200 | >2500 | >1400 | >1600 | >800 |
| Fractural Strength | MPa | >350 | >380 | >150 | >160 | >100 |
| Coefficient of Heat Expansion | 10-6/°C | 4 | 4.2 | 3.5 | 3 | 2.5 |
| Content of Sic | % | ≥90 | ≥98 | ≥85 | ≥92 | ≥90 |
| Free Si | % | ≤10 | ≤1 | ≤12 | / | / |
| Elastic Modulus | GPa | ≥400 | ≥410 | ≥350 | ≥360 | ≥180 |
| Temperature | °C | 1300 | 1400 | 1300 | 1400 | 1400 |
Download the 2015 Mechanical Seals Catalogue, Seal Faces & Shaft Bushings Catalogue, and Armor Ceramic Tiles Catalogue.
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Company Info
Ningbo Kylin Machinery Co., Limited.
Email: sales@kyltd.com