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Silicon Carbide Seal

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.

Silicon Carbide Seal
Sintered Silicon Carbide, Reaction Bonded Silicon Carbide,
and Pressureless Sintered Silicon Carbide Seal Faces

Silicon Carbide (SiC) physical property
Technical Parameter Unit 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/oC 4 4.2 3.50 3.00 2.50
Content of Sic % ≥90 ≥98 ≥85 ≥92 ≥90
Free Si % ≤10 ≤1 ≤12 / /
Elastic Modulus GPa ≥400 ≥410 ≥350 ≥360 ≥180
Temperature oC 1300 1400 1300 1400 1400
We are specialized in the production as well as distribution of high quality Silicon Carbide Seal, silicon carbide mechanical seal sintering silicon carbide pressureless sintered in the industry. We offer different variety of Silicon Carbide Seal in the market such as silicon carbide mechanical sealsintering silicon carbidepressureless sintered. Besides, we are one of the most famed Silicon Carbide Seal manufacturers as well as silicon carbide mechanical sealsintering silicon carbidepressureless sintered suppliers from China.