|Melting Point||2,730° C (4,946° F) (decomposes)|
|Density||3.0 to 3.2 g/cm3|
|Electrical Resistivity||1 to 4 10x Ω-m|
|Poisson’s Ratio||0.15 to 0.21|
|Specific Heat||670 to 1180 J/kg-K|
Silicon carbide (SiC) is a lightweight ceramic material with high strength properties comparable to diamond. It has excellent thermal conductivity, low thermal expansion, and is resistant to corrosion from acids. Silicon carbide is an excellent ceramic material for applications requiring good erosion and abrasive resistance. Consequently, it is useful in a variety of applications including spray nozzles, shot blast nozzles and cyclone components.
We produce sintered SiC tubes, reaction bonded SiC tubes and recrystallized SiC tubes. Our recrystallized SiC products have a high purity, while our reaction bonded and sintered silicon carbide tubes have a high mechanical strength. Our silicon carbide tubes possess good wearability,a low thermal expansion coefficient, extreme corrosion resistance, high hardness and self-lubricating properties.
|Recrystallized SiC||Sintered SiC||Reaction Bonded SiC|
|Purity of Silicon Carbide||99.5%||98%||>88%|
|Max. Working Temp. (`C)||1650||1550||1300|
|Bulk Density (g/cm3)||2.7||3.1||>3|
|Flexural strength (MPa)||110||400||380|
|Compressive strength (MPa)||>300||2200||2100|
|Thermal expansion (10^-6/`C)||4.6 (1200`C)||4.0 (<500`C)||4.4 (<500`C)|
|Thermal conductivity (W/m.K)||35~36||110||65|
|Main characteristics||High temp. High resistance.
|Fracture Toughness||Chemical Resistance|
-Silicon carbide is frequently used in semiconductor and coating industries.
-SiC tubes are used to serve as components in industrial furnaces and thermal couple protectors.
ACM’s Silicon Carbide Tube is carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition.
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