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Silicon Carbide Tube, SiC Tube

Silicon Carbide Tube, SiC Tube

Silicon Carbide (SiC) Tubes are high-performance mechanical components that are commonly used in various industries for their unique properties. SiC Tubes are made of silicon carbide material, which is a high-strength ceramic material that offers excellent hardness, wear resistance, and thermal shock resistance.

SiC Tubes have a number of benefits over traditional tube materials like quartz or alumina, including their ability to withstand high temperatures and aggressive chemicals, their low coefficient of thermal expansion, and their resistance to thermal shock. They are also known for their high mechanical strength and durability.

SiC Tubes are commonly used in applications where high-temperature processing is required, such as in the chemical industry for processing corrosive chemicals. They are available in a variety of sizes and shapes to fit different types of equipment, and they can be customized to meet specific application requirements.

SiC Tubes are known for their long lifespan, making them a cost-effective choice for high-temperature processing applications. They are also easy to clean and maintain, making them a popular choice for cleanroom environments.

Overall, SiC Tubes are an excellent choice for high-temperature processing applications that require high-performance, long-lasting tubes that can withstand extreme conditions and provide reliable operation. They are an ideal choice for use in the chemical industry where high durability and reliability are required.


Silicon Carbide Ceramics Properties

Compound Formula SiC
Molecular Weight 40.1
Appearance Black
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 Ceramics Specification

CAS#: 409-21-2, Not Hazardous
Powder, F.W. 40.10, m.p. 2700 °C, Spec. Gravity 3.217 gm/cm3
Item No. Description Purity Lot Size
CB14-85 Silicon Carbide Powder
Particle Size:18, 30, 40 or 200 mesh
> 85 %
F.C. < 2.5%, Fe2O3 < 2%, Al2O3 < 1.2%
CB14-90 Silicon Carbide Powder
Particle Size:18, 30, 40 or 200 mesh
> 90 %
F.C. < 1.5%, Fe2O3 < 1.2%
CB14-98 Silicon Carbide Powder
Particle Size:18, 30, 40 or 200 mesh
> 98 %
F.C. < 0.6%, Fe2O3 < 0.7%

Silicon Carbide Ceramics Applications

Until the invention of boron carbide in 1929, silicon carbide was the hardest synthetic material known. It has a Mohs hardness rating of 9, approaching that of a diamond. In addition, SiC crystal has fracture characteristics that make them extremely useful in grinding wheels and in abrasive paper and cloth products.

Its high thermal conductivity, together with its high-temperature strength, low thermal expansion, and resistance to chemical reaction and thermal shock, makes silicon carbide valuable in the manufacture of high-temperature bricks and other refractories.

SiC ceramic is also classed as a semiconductor, having an electrical conductivity between that of metals and insulating materials. This property, in combination with its thermal properties, makes SiC a promising substitute for traditional semiconductors such as silicon in high-temperature applications.

Silicon Carbide Tube Specifications

  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
Appearance Porosity < 15% 2.5 0.1
Flexural strength (MPa) 110 400 380
Compressive strength (MPa) > 300 2200 2100
Thermal expansion (10^-6/`C) 4.6 (1200℃) 4.0 (< 500℃) 4.4 (< 500℃)
Thermal conductivity (W/m.K) 35~36 110 65
Main characteristics High temp. High resistance.
High purity
Fracture Toughness Chemical Resistance


Silicon Carbide Tube Applications

-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.
-It can be used in high temperature applications.


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