Wear Resistant Al2O3 Alumina Ceramic Sleeve
- MSJ/AL-004
- Alumina ceramic
- customized
- 10 pcs per type
- industrial applications
Mascera is a professional supplier for technical ceramic parts, we provide custom manufacturing for alumina ceramics, zirconia ceramics, boron nitride ceramics, silicon nitride ceramics, silicon carbide ceramics, aluminum nitride ceramics and machinable glass ceramics.
Alumina ceramic is the most widely applied technical ceramics which has high hardness and mechanical strength, good wear resistance, high temperature resistance, good electrical insulation and good resistance to corrosion etc. Mascera could make custom manufacturing for alumina ceramic parts in required size and shapes.
Any inquiry please email info@mascera-tec.com or call +86 13860446139
Product detail
Alumina ceramic, also known as al2o3 ceramic or aluminum oxide ceramic, is a highly versatile technical ceramic material that finds wide usage across various industries. It offers numerous benefits, including high strength, excellent dielectric properties, exceptional wear and corrosion resistance, and remarkable heat resistance. Alumina ceramic is one of the hardest and most wear-resistant materials on the planet, and diamond tools are required to machine it after sintering. Its applications span a broad range of industries, including machinery, electrical and electronics, semiconductors, petroleum, chemicals, textiles, and more.
Mascera offers customized alumina ceramic sleeves/tubes in a wide range of purities, including 95%, 96%, 99%, 99.5%, and 99.8%.The higher purity levels have fewer impurities and can be used for vacuum applications. Our ceramic sleeves and tubes are produced through high-temperature sintering and are fully dense, with the surface finish available as-fired, fine grinding, or polished. Our team works closely with customers to understand their specific needs and produce exact ceramic parts with tight tolerances. Whether it's a small quantity for a prototype or a large quantity for batch production, Mascera is committed to delivering high-quality, customized ceramic solutions to meet our customers' unique requirements.
Main properties of alumina ceramic sleeve / tube
Good strength and stiffness
Extremely high hardness (Moh's hardness 9)
Exceptional resistance to wear
Good corrosion resistance to acid and alkali
High temperature resistance up to 1750℃
Excellent electrical insulation
Low dielectric constant and dielectric loss
Typical applications of alumina ceamic
Mechanical seal rings
Pump plungers or pistons
Electronic substrates
Ceramic crucibles
Textile eyelets or guides
Ceramic balls/valves/seats for valves
Electrical insulators
Wear resistant nozzles
Ceramic furnace tubes
Ceramic thermocouple protection tubes
Material Data Sheet
| Material | Unit | 95% Al2O3 | 96% Al2O3 | 99% Al2O3 | 99.5% Al2O3 | 99.8% Al2O3 |
|---|---|---|---|---|---|---|
Purity | % | 95 | 96 | 99 | 99.5 | 99.8 |
Color | --- | White/Pink | White | Ivory | Ivory | Ivory |
Density | g/cm3 | 3.65 | 3.72 | 3.85 | 3.90 | 3.92 |
Water Absorption | % | 0 | 0 | 0 | 0 | 0 |
Moh's Hardness | --- | 9 | 9 | 9 | 9 | 9 |
HV Hardness | --- | >1300 | >1300 | 1700 | 1750 | 1800 |
Flexural Strength @25℃ | Mpa | 300 | 300 | 330 | 375 | 390 |
Fracture Toughness | Mpa.M1/2 | 3~4 | 3~4 | 3~4 | 4 | 4 |
Compressive Strength (25℃) | Mpa | 2200 | 2200 | 2350 | 2450 | 2500 |
Thermal Conductivity @25℃ | W/M.K | 18-22 | ≥24 | 27 | 29 | 32 |
Thermal Expansion Coefficient | 10-6mm/℃ | 8 | 8 | 8 | 8 | 8 |
Thermal Shock Resistance | △T(℃) | 220 | 220 | 180-200 | 180-200 | 180-200 |
Max. Working Temperature | ℃ | 1500 | 1500 | 1700 | 1750 | 1750 |
Dielectric Strength | Kv/Mm | 16 | 17.2 | 20 | 22 | 22 |
Electrical Resistivity (@25℃) | Ω.Cm | 1014 | 1014 | 1014 | 1014 | 1014 |
Dielectric Constant (@1MHz, 25℃) | --- | 9 | 9 | 9.7 | 9.7 | 9.8 |
Dielectric Loss (Tan Delta) | --- | 0.0004 | 0.0002 | 0.0002 | 0.0001 | 0.0001 |
Shapes of Alumina Ceramics that are Available:
Ceramic rod / ceramic pin / ceramic plunger
Ceramic tube / ceramic bushing / ceramic sleeve
Ceramic ring / ceramic washer / ceramic spacer
Ceramic disc
Ceramic plate / ceramic block
Ceramic ball
Ceramic piston
Ceramic nozzle
Ceramic crucible
Other custom ceramic parts
Machining Ability of Ceramic Parts
Dimensional accuracy: Up to 0.001mm
Surface roughness: Ra0.05-3.2μm
Concentricity: Up to 0.02mm
Parallelism: Up to 0.01mm
Accuracy of Inner hole Drilling: Up to 0.01mm
Cylindricity: Up to 0.02mm
Thread machining: Minimum internal thread M2
Surface finish: As fired, glazed, grinding, polishing, metallization
Packing & Shipment
| Package type | carton box with foam protection |
| Payment terms | TT / Western Union / Paypal 50% payment in advanced and 50% before shipment |
| Loading port | Xiamen, China |
| Shipping way | By sea / air / door-to-door express |
