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High-Quality Ceramic Lined Pipes from China Suppliers & Factory - KOWOV Wear-Resistant Solutions
Structural Characteristics
Low Operating Resistance
Smooth internal surface, no corrosion, unlike seamless steel pipes with potential spiral protrusions.
Superior smoothness, clean resistance coefficient of 0.0193, lower than seamless pipes.
Low operating resistance reduces operational costs.
Excellent Wear Resistance
Structural ceramics provide wear resistance 266 times that of manganese steel and 171.5 times that of high-chromium cast iron.
Significantly reduces equipment wear in powder processing systems.
Over 20 years of field operation, ensuring at least 10 years of service life, reducing maintenance frequency and costs.
Corrosion Resistance
High-performance structural ceramics resist acids, alkalis, seawater corrosion, and scale formation.
Extends pipeline lifespan.
Good Temperature Resistance
Operates normally from -50°C to 500°C due to stable crystalline structure.
Linear expansion coefficient of 6-8 × 10⁻⁶ /°C, approximately half that of steel pipes, indicating good thermal stability.
Main Technical Parameters
| Item | Y-ZrO / Y-TZP | Mg-ZrO₂ / M-PSZ | 90 Al₂O₃ | 95 Al₂O₃ | 99 Al₂O₃ | Si₃N₄ | SiC | Common Ceramics | Carbide Alloy | 45# Steel |
| Density g/cm³ | 6.0~6.05 | 5.72~5.74 | 3.45~3.55 | 3.6~3.75 | 3.9~3.95 | 3.2~3.33 | 3.15~3.25 | 3.0~3.5 | 14~18 | 7.8 |
| Hardness HRA/C | 87 | 85 | 90 | 90 | 92 | 92 | 94 | 50~60 | 70 | 36 |
| Flexural Strength MPa | 1150 | 900 | 350 | 370 | 450 | 1200 | 470 | 20~50 | 2000 | 804 |
| Fracture Toughness (KIC) MPa√m | 10~12 | 13~15 | 3.4 | 3.6 | 4.5 | 7 | 4 | -- | 20 | 101 |
| Compressive Strength MPa | 2000 | 1800 | 1700 | 2000 | 2200 | 2800 | -- | -- | 4000 | 2000 |
| Thermal Shock Resistance °C | 87 | 110 | -- | -- | 50 | 200 | 75 | -- | 500 | 500 |
| Thermal Expansion Coefficient ×10⁻⁶/°C | 9.6 | 10 | 7.6 | 7.8 | 8.3 | 3.4 | 4 | -- | 7 | 12 |
| Modulus of Elasticity GPa | 200 | 200 | 310 | 330 | 350 | 300 | 400 | -- | 600 | -- |
| Crushing Load KN (Φ6mm) | 15 | 10 | 3.5 | 3.6 | 4 | 18 | 3.5 | -- | -- | -- |
| Using Temperature °C | <160 | <1000 | <1200 | <1250 | <1500 | <1500 | <1500 | -- | -- | <560 |
| Water Absorption | 0 | 0 | 0.02% | 0.01% | 0.00% | 0 | 0.50% | 5~10% | -- | -- |
| Corrosion Prevention | Good | Good | Good | Good | Good | Good | Good | Flooey | Good | Flooey |
* Data sources: test results or issued original documents.
Anti-Corrosive Performance Reference Table
| Media | Temperature | ZrO₂ | 99.9% Al₂O₃ | SiC | Si₃N₄ | Graphite | PTFE | Fluororubber | SS304 | SS316 | HC |
| 20% HCL | 60°C | A | A | A | B | A | A | A | C | C | B |
| 20% HCL | 95°C | A | A | A | C | A | A | A | -- | -- | C |
| 90% H₂SO₄ | 60°C | A | A | A | A | A | A | A | C | C | B |
| 90% H₂SO₄ | 95°C | A | A | A | B | A | A | A | C | C | C |
| 60% H₃PO₄ | 60°C | A | A | A | C | A | A | A | C | C | A |
| 60% H₃PO₄ | 95°C | A | A | A | C | A | A | A | C | C | A |
| 10% HF | 60°C | C | B | A | A | A | A | A | C | C | B |
| 46% HF | 95°C | C | C | A | C | A | A | A | -- | -- | C |
| 60% HNO₃ | 60°C | A | A | A | C | B | A | A | A | A | C |
| 60% HNO₃ | 95°C | A | B | A | C | B | A | A | B | B | C |
| 30% NaOH | 60°C | A | B | A | B | A | A | A | A | A | A |
| 30% NaOH | 95°C | B | B | A | C | A | A | A | A | B | A |
A ≤ 0.1 mmg/cm²/day: Can be ignored or has no corrosion, recommended for use.
B = 0.1~0.3 mmg/cm²/day: Slight or very minor corrosion, use with caution.
C ≥ 0.3 mmg/cm²/day: Significant corrosion, not recommended for use.
-- : Intense corrosion, to the extent that measurement is not possible.
Flow Characteristic Sheet of Ceramic Ball Valve
| Core Specifications | O-type Ball Core | V60° Ball Core | V45° Ball Core | V30° Ball Core |
| DN15 | 10 | 7 | 4 | 3 |
| DN20 | 18.2 | 12 | 8 | 5 |
| DN25 | 29 | 18 | 12 | 8 |
| DN32 | 47 | 30 | 20 | 13 |
| DN40 | 73 | 46 | 31 | 21 |
| DN50 | 114 | 72 | 48 | 32 |
| DN65 | 181 | 115 | 76 | 51 |
| DN80 | 292 | 185 | 123 | 82 |
| DN100 | 456 | 289 | 192 | 128 |
| DN125 | 712 | 452 | 300 | 201 |
| DN150 | 1025 | 650 | 432 | 289 |
| DN200 | 1822 | 1156 | 769 | 514 |
Application
- ⚡Power Plants: Transporting limestone slurry.
- 🏭Steel Plants: Conveying coal powder and fly ash.
- ⛏️Mining Industry: Transporting mineral slurry and tailings.
- 🔬Silicon Chemical Industry: Transporting silica powder.
- 🧪Chemical Plants: Transporting acid and alkali slurries.
- 🔥Coal Chemical Industry: Transporting ash water, black water, coal slag, and dry coal powder.
- 🌱Fertilizer Industry: Transporting granular fertilizers and crystalline materials.
- 🚿Coal Washing Plants: Transporting coal slurry and coal mud.
- ⚙️Metallurgical Industry: Slag removal and boiler ash removal.
- 🔋New Energy: Transporting lithium carbonate and lithium iron phosphate.
- ♻️Energy and Environmental Protection: Zero discharge of wastewater and solid waste treatment.
Frequently Asked Questions (FAQ)
What makes ceramic lined pipes more wear-resistant than steel pipes?
Ceramic lined pipes use structural ceramics that offer wear resistance 266 times greater than manganese steel and 171.5 times greater than high-chromium cast iron. This exceptional hardness (up to HRA 94 for SiC) dramatically reduces material loss in abrasive powder or slurry conveying systems, extending service life to at least 10 years under normal operating conditions.
What temperature range can ceramic lined pipes withstand?
Ceramic lined pipes operate normally across a wide temperature range of -50°C to 500°C, depending on the ceramic material used. For example, 99 Al₂O₃ ceramic can be used up to 1500°C, while Y-TZP zirconia is suitable for temperatures below 1000°C. The low linear expansion coefficient (6–8 × 10⁻⁶/°C) ensures excellent thermal stability.
Are ceramic lined pipes resistant to chemical corrosion?
Yes. High-performance structural ceramics such as Al₂O₃, ZrO₂, and SiC exhibit excellent resistance to a wide range of corrosive media, including hydrochloric acid (HCL), sulfuric acid (H₂SO₄), phosphoric acid (H₃PO₄), and sodium hydroxide (NaOH). Most ceramic materials receive an "A" rating (≤ 0.1 mmg/cm²/day corrosion), making them highly recommended for chemical and industrial applications.
What industries are ceramic lined pipes most suitable for?
Ceramic lined pipes are widely used across multiple industries, including power plants (limestone slurry), steel plants (coal powder and fly ash), mining (mineral slurry and tailings), chemical plants (acid and alkali slurries), coal chemical industry, fertilizer production, metallurgical slag removal, and new energy sectors such as lithium battery material transportation. Their combination of wear, corrosion, and temperature resistance makes them ideal for demanding industrial environments.
How does the flow resistance of ceramic lined pipes compare to standard steel pipes?
Ceramic lined pipes feature a smooth internal surface with a clean resistance coefficient of 0.0193, which is lower than that of seamless steel pipes. Unlike steel pipes that may develop internal spiral protrusions or corrosion over time, the ceramic lining maintains its smooth surface throughout its service life, resulting in lower operating resistance, reduced energy consumption, and lower overall operational costs.
What ceramic materials are available and how do I choose the right one?
Several ceramic materials are available, including Y-TZP (Yttria-stabilized zirconia), M-PSZ (Magnesia partially stabilized zirconia), 90/95/99 Al₂O₃ (Alumina), Si₃N₄ (Silicon nitride), and SiC (Silicon carbide). Selection depends on your specific application requirements such as operating temperature, chemical media, mechanical load, and budget. For example, SiC offers the highest hardness (HRA 94) and is ideal for extreme abrasion, while 99 Al₂O₃ provides a balance of corrosion resistance, hardness, and thermal stability for most industrial applications.