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Silicon Carbide Seals (SIC)

Silicon Carbide Seals (SIC)

Silicon carbide seal is a bluish-black material composed by fusing silica and coke. It is like ceramic because of silica, but has much better lubrication qualities and is harder. In chemical applications, silicon carbide may be recommended. Either grade of SiC can usually be re-lapped and polished to be reused.

Usage of Silicon Carbide Seal
Silicon carbide mechanical seal is often used for diesel particulate filters in sintered form, which is a device intended to remove diesel particulate matter or soot from the exhaust gas of a diesel engine.

1. Silicon carbide seal features excellent resistant-corrosion, high hardness, high mechanical strength, high thermal conductivity and heat-resistance, superior chemical inertness and good self-lubrication. Due to these properties, silicon carbide mechanical seal will run dry ten times longer and deal with abrasion six times longer than a standard seal.
2. We are a trusted manufacturer and supplier of silicon carbide seal. This kind of seal is known for its excellent finishing and durability. We offer silicon carbide mechanical seals made from top-class raw materials that ensure excellent functioning.
3. Though good quality it has, the silicon carbide seal is available at an attractive price.

Technical Parameters of Silicon Carbide Seal

Item Unit SiC SSiC
Purity % ≥90 ≥98
Density g/cm3 3.05 3.1
Shore Hardness HS 110-125 120-130
Elastic Modulus Mpa 4.12×105 4.10×105
Poisson Ratio   0.15 0.16
Tensile Strength Mpa 2.75×102 2.8×102
Bending Strength Mpa 4.41×102 4.9×102
Compression Strength Mpa 2.94×103 3.0×103
Thermal Conductivity W/m.k 141(W/m.k) 147(W/m.k)
Coefficient of Thermal Expansion  l/℃ 4.3×10-6 4.0×10-6
Heat Resistance   1600 C 1650℃
Thermal Impact Coefficient cal/cm.sec 46.5 200
Acid Resistance   5 times higher than the usual TC Resist all chemical media
1) SiC means Reaction Silicon Carbide
2) SSiC means Sintered Silicon Carbide

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