Silicon Carbide Wear-Resistant Pipe
Silicon Carbide Products SeriesSilicon Carbide Wear-Resistant Pipes are fabricated with high-purity silicon carbide via advanced reaction-bonded sintering (SiSiC/RBSiC) or recrystallized sintering. Featuring high hardness, strong erosion and wear resistance, broad chemical acid/alkali tolerance, and good thermal shock stability under rigorous high-abrasion environments.
| Parameter | Specification |
|---|---|
| Material | Reaction Bonded Silicon Carbide (RBSiC/SiSiC) |
| Max Service Temperature | 1380°C ~ 1650°C |
| Bulk Density | ≥ 3.02 g/cm³ |
| Apparent Porosity | ≤ 0.5% |
| Mohs Hardness | ≥ 9.2 (Vickers ≥ 2500 kg/mm²) |
| Bending Strength (20℃) | ≥ 250 MPa |
| Thermal Conductivity (1200℃) | ≥ 45 W/(m·K) |
Material Introduction
Silicon Carbide (SiC) is an advanced non-oxide structural ceramic with robust covalent bonding, conferring extreme hardness, high mechanical strength, superior thermal conductivity, low thermal expansion, and excellent chemical resistance against aggressive chemicals and extreme temperatures.
Under demanding operating conditions involving concentrated solid particle slurries (such as mineral tailings, pulverized coal, desulfurization gypsum, and ash residues), Silicon Carbide Wear-Resistant Pipes provide 10 to 20 times longer operational life than standard steel pipes and significantly surpass alumina ceramic tiles and rubber liners. This drastically cuts down maintenance downtime and operational replacement costs.
Product Features
- High Wear & Erosion Resistance: Mohs hardness 9.2~9.5, offering strong particle erosion resistance; under severe abrasion, service life is typically longer than that of ordinary alloy steel pipes.
- High Temperature & Thermal Shock Stability: Withstands temperatures up to 1380°C~1650°C without degradation or cracking under rapid temperature fluctuations.
- Universal Corrosion Resistance: Inert to strong acids (sulfuric, hydrochloric, nitric), alkalis, and industrial corrosive gases without flaking or peeling.
- Smooth Inner Wall & Anti-Scaling: Mirror-smooth bore minimizes fluid drag, reduces energy consumption, and prevents material accumulation and clogging.
- Custom Integrated Geometries: Fully customizable as straight pipes, elbows, tees, reducers, and cyclone liners in integrated one-piece ceramic designs.
Specification Parameters
| Property | Unit | Reaction Bonded SiC (RBSiC) | Sintered SiC (SSiC) | Nitride Bonded SiC (NSiC) |
|---|---|---|---|---|
| SiC Content | % | ≥ 88 | ≥ 98 | ≥ 75 |
| Bulk Density | g/cm³ | ≥ 3.02 | ≥ 3.10 | ≥ 2.65 |
| Apparent Porosity | % | ≤ 0.5 | ≤ 0.5 | ≤ 14 |
| Flexural Strength (20℃) | MPa | ≥ 250 | ≥ 400 | ≥ 160 |
| Flexural Strength (1200℃) | MPa | ≥ 280 | ≥ 420 | ≥ 180 |
| Mohs Hardness | - | 9.2 ~ 9.5 | 9.5 | 9.0 |
| Max Service Temperature | ℃ | 1380 | 1650 | 1450 |
| Thermal Conductivity (1200℃) | W/(m·K) | ≥ 45 | ≥ 35 | ≥ 20 |
| Thermal Expansion Coeff. (20-1000℃) | 10⁻⁶/K | 4.5 | 4.2 | 4.6 |
