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Grade: Reaction Bonded
Formula: SiC
Form: Tube
Material: Silicon Carbide
Commodity: Ceramics
Reaction Bonded Silicon Carbide (SiSiC) Tube provides exceptional wear resistance, high thermal conductivity, and stability under extreme thermal cycling in a hollow cylindrical structure. Its corrosion resistance in acids, alkalis, and molten salts makes it a material of choice for harsh fluid handling and heat exchange systems. Industries employ SiSiC tubes in thermocouple protection sheaths, abrasive slurry transport, and radiant heating elements in high-temperature furnaces. Specific applications include gas burner tubes, chemically inert flow channels in semiconductor processing, and heat exchanger elements for corrosive process streams. In research, SiSiC tubes are used to investigate fluid dynamics under high thermal loads, develop composite heat transfer systems, and evaluate resistance to thermal shock in cyclic service. The tube format’s combination of structural precision and extreme durability makes it vital for demanding industrial and scientific uses.
Tolerances
Tube
| Outside Diameter | =<2mm | ±10% |
|---|---|---|
| Outside Diameter | =<5mm | ±10% |
| Outside Diameter | >5mm | ±10% |
| Wall Thickness | ±20% |
Material Properties for Ceramics
Chemical Resistance
| Element | Value |
|---|---|
| Acids - concentrated | Good |
| Acids - dilute | Good |
| Alkalis | Fair |
| Halogens | Fair |
| Metals | Fair |
Physical Properties
| Element | Value |
|---|---|
| Apparent porosity( % ) | 0 |
| Density( gcm⁻³ ) | 3.1 |
Thermal Properties
| Element | Value |
|---|---|
| Upper continuous use temperature( C ) | 1350 |
| Specific heat( J K⁻¹ kg⁻¹ ) | 1100@25°C |
| Thermal conductivity( W m⁻¹ K⁻¹ ) | 150-200@20°C |
| Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) | 4.3-4.6@20-1000°C |
Mechanical Properties
| Element | Value |
|---|---|
| Tensile modulus( GPa ) | 410 |
| Hardness - Vickers( kgf mm⁻² ) | 2500-3500 |
| Tensile strength( MPa ) | 310 |
Pultrusions
| Element | Value |
|---|---|
| Compressive strength( MPa ) | 2000-3500 |
Electrical Properties
| Element | Value |
|---|---|
| Volume resistivity( Ohmcm ) | 10²-10³@25 |
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