High hardness alumina ceramic tube
Product Overview
Alumina ceramics have low dielectric constant, low dielectric loss, high insulation strength, high volume resistivity, good bending strength, high stability, high compressive strength, and good cold and hot shock degeneration.
Product parameter table
| Material
Project | Alumina AL203 | Silicon carbide sic | Silicon nitride sin | Silicon nitride sin |
| Color | Ivory | black | black | Milky white, gray black |
| Content(%) | 99.5 | …… | …… | …… |
| Main features | - Excellent high frequency electrical insulation
-
Good wear resistance -
preservative -
Strong -
High hardness | - Good high temperature strength
- High thermal conductivity
- Strong alkali resistance
- Wear-resistant
- Lightweight
| - Good high temperature strength
- Strong impact resistance
- Strong corrosion resistance
- Lightweight
| - High strength and high impact resistance
- Good self-lubricating
- Strong alkali resistance
- Smooth surface
- Good toughness
|
| The main purpose | - Wear parts
- High temperature parts
- Corrosion resistant parts
| - Machinery Seal
- Sliding parts
- High temperature parts
| - Molten metal parts
- Metal plasticity
- Processed parts
| - Industrial knives
- Pump parts
- Wear parts
|
| Density | Kg/m³ | 3.9*10 | 3.16*10 | 3.3*10 | 6.0*10 |
| Mechanical behavior | Vickers hardness | Gpa | 16.0 | 23.0 | 14.0 | 13.2 | 12.7 |
| Flexural strength | Mpa | 360 | 450 | 1020 | 1000 | 1470 |
| Compressive strength | Mpa | 2350 | …… | …… | …… | …… |
| Fracture toughness | Mpa | 4 | 2-3 | 7 | 4-5 | 4-5 |
| Thermal performance | Linear expansion coefficient | 40-400℃ | ×10-5/℃ | 7.2 | 3.7 | 2.8 | 10.5 | 10.8 |
| 40-800℃ | 8.0 | 4.4 | 3.3 | 11.0 | 11.3 |
| Thermal conductivity | W/(m·k) | 32 | 200 | 27 | 3 | 3 |
| Specific heat | J/(kg·k) | 0.78*10 | 0.67*10 | 0.65*10 | 0.46*10 | 0.46*10 |
| Thermal shock resistance (in water) | ℃ | 250 | …… | ＞800 | 300 | 350 |
| Electrical performance | Dielectric strength | V/m | 15*105 | …… | 13*105 | 11*105 | …… |
| Volume resistance(20℃) | Ω·cm | ＞1014 | 108 | 1014 | 1013 | …… |
| Dielectric constant | …… | 9.6 | …… | 9.9 | 33 | …… |
| Loss factor | ×10-4 | 10 | …… | …… | 520 | …… |
Product advantages
The product quality is excellent and stable, the specifications are standard, and the appearance is smooth and even. The main performance indicators—moisture absorption rate, bulk density, flexural strength, peel strength, and fire resistance are better than the national standard requirements.
Applications
- Shipbuilding, bridges, large-scale structural facilities
- Lighting industry
- Electronics and electric heating industry
Product Picture
Alumina ceramics are also called precision ceramics, special ceramics, or high-tech ceramics. It uses highly selected raw materials and is produced according to a special manufacturing process, which can precisely control the chemical composition and ceramics with excellent properties.
Product packaging
Packed in carton
FAQ
1. Are you a factory or a trading company?
Answer: We are a factory, welcome to visit our factory.
2. What is the price of your product?
Answer: Please do your best to inquire about each detailed requirement including quantity, size, color, packaging, etc., then we will give you an accurate quotation at the first time.
3. How to guarantee the quality of the products we ordered from you?
Answer: The company has strong technical force, advanced production equipment and perfect testing methods. The products have beautiful appearance and quality assurance. The company has passed ISO9001: 2000 international quality system certification, and the product sales network covers all parts of the country; more than 80% The products are exported to Asia, Europe, and the United States, and enjoy a good reputation in the domestic and foreign markets. The company has strong technical support, excellent management personnel, and perfect customer service. Regardless of product quality or distribution services, they have won the praise of customers.
4. Is it possible to make the product our own design?
Answer: Yes! We accept customized orders. And we also have an experienced R&D team, and will do everything in accordance with your expectations!
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Alumina ceramic wear resistant insulating pipe Images
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