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The silicon carbide tube, also known as a ceramic tube made from sintered silicon carbide (SiC), is a high-performance solution designed to withstand extreme environments. With excellent SiC thermal conductivity, superior hardness, and outstanding corrosion resistance, these tubes are widely used in industries such as metallurgy, chemical processing, energy, and semiconductor manufacturing. As one of the most reliable silicon carbide ceramic components, it solves problems where metals or ordinary ceramics fail due to heat, wear, or chemical attack.
Key Features of Silicon Carbide Tubes
- Exceptional Thermal Performance: With high silicon carbide thermal conductivity, SiC tubes ensure efficient heat transfer in high-temperature applications.
- High Mechanical Strength: The material's hardness and toughness make it resistant to abrasion, extending service life in demanding environments.
- Corrosion & Oxidation Resistance: Ideal for contact with aggressive chemicals, acids, and gases where metal corrosion is a challenge.
- Dimensional Stability: Low thermal expansion guarantees precision performance even under thermal cycling.
- Lightweight with High Density: The silicon carbide density provides a perfect balance between lightweight structure and mechanical reliability.
- Wide Customization Options: Available in various sizes, shapes, and wall thicknesses to meet specific industrial requirements.
Technical Specifications
| プロパティ | Typical Value | 備考 |
| 素材 | Sintered Silicon Carbide (SiC) | High-purity, advanced ceramic |
| Density (SiC density) | 3.1–3.2 g/cm³ | Comparable with other high-tech ceramics |
| 硬度 | > 25 GPa | Mohs scale 9+ |
| Thermal Conductivity (SiC) | 120–200 W/m·K | Excellent for thermal transfer |
| 最高使用温度 | Up to 1600°C | Depending on environment |
| Thermal Expansion Coefficient | ~4.0 × 10⁻⁶ /K | Stable under thermal cycling |
| 耐食性 | Excellent against acids & alkalis | Superior to metals |
Application Fields
- Metallurgy & Foundry: Used in furnace linings, thermocouple protection tubes, and molten metal handling.
- Chemical & Petrochemical Industry: Resistant to acid gases and corrosive liquids in reactors and pipelines.
- Semiconductor Manufacturing: Precision tubes for diffusion, oxidation, and wafer processing environments.
- Energy & Power: Components in heat exchangers, burners, and fuel processing systems.
- Aerospace & Defense: Lightweight yet durable tubes for extreme temperature operations.
Product Advantages Compared to Traditional Materials
| Feature / Material | 炭化ケイ素チューブ | Metal / Stainless Steel | Ordinary Ceramic |
| 熱伝導率 | Very High (120–200 W/m·K) | Moderate (15–50 W/m·K) | Low (1–5 W/m·K) |
| 耐食性 | 素晴らしい | Prone to oxidation/corrosion | 中程度 |
| 機械的強度 | Very High Hardness & Wear Proof | High strength but softer | Brittle, less impact resistant |
| Density vs. Weight | High density but lightweight | Heavy | Light but fragile |
| Service Life | Long lifespan in harsh use | Shorter in corrosive/thermal cases | Short due to brittleness |
グレート・セラミックを選ぶ理由
- Advanced silicon carbide manufacturing technology.
- Strict quality control and adherence to international testing standards.
- Custom solutions tailored to client applications.
- Proven reliability and global customer base.
Manufacturing Process & Quality Control
Great Ceramic applies advanced silicon carbide processing technologies, including isostatic pressing, sintering, and precision machining. Every silicon carbide tube undergoes:
- Raw Material Selection – only high-purity powders.
- Forming & Sintering – optimized to achieve high density and structural integrity.
- Machining & Polishing – ensuring dimensional accuracy.
- Inspection & Testing – thermal shock resistance, density, hardness, and corrosion testing.
Our production is certified under international quality standards, ensuring stability, consistency, and reliability in every shipment.
会社概要
Great Ceramic is a trusted silicon carbide manufacturer specializing in advanced ceramic solutions. With a strong R&D team, patented technologies, and international certifications, we deliver high-quality sintered silicon carbide products worldwide. Our expertise covers not only silicon carbide tubes but also ceramic bushings, plates, and custom-engineered solutions.
よくある質問（FAQ）
SiC tubes are used in high-temperature furnaces, chemical processing, semiconductor equipment, and power generation due to their unique thermal and chemical properties.
The typical silicon carbide density is around 3.1–3.2 g/cm³, offering a balance between strength and weight.
SiC thermal conductivity is significantly higher, enabling faster heat transfer and better energy efficiency.
Yes, Great Ceramic provides tailored solutions in terms of dimensions, wall thickness, and performance characteristics.
