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Alumina ceramic ring custom 99.5 to 99.99 purity Al2O3 alumina ceramic rings
Materials：Alumina (Al2O3)/ Zirconia(ZrO2) /Si3N4 /SiC ...etc
Sizes：Custom according to the drawings
Delivery times：2 -25 days(depends on the quantity)
Precision：Ra 0.1um tolerance: 0.001mm... etc
Features：Heat resistance / Wear resistance / High purity / Refractory / High Corrosion / Good Insulation
Customized：Can be custom for special sizes and shapes
Ceramic plates sheet substrate disc series
Alumina ceramic ring custom 99.5 to 99.99 purity Al2O3 alumina ceramic rings
Alumina ceramic ring have a best ability in high temperature resistance, strength, wear, compression , insultation,corrosion etc , due to it made by advance alumina ceramics Al2O3.
High purity alumina ceramics
99.99% Alumina ceramic; 99.9% Alumina ceramic,
Ordinary alumina ceramics
99.7% Alumina ceramic,99.5% Alumina ceramic,99% Alumina ceramic,97% Alumina ceramic,96% Alumina ceramic,95% Alumina ceramic
Alumina Ceramic Parameters
| Properties | Unit | Alumina (AL2O3) | |||
| AL2O3≥95 | AL2O3≥99 | AL2O3≥99.5 | AL2O3≥99.8 | ||
| Volumetric density | g/cm³ | 3.7 | 3.80-3.85 | 3.85 | 3.9 |
| Hardness | HRA≥ | 86 | 88 | 88 | 88 |
| Flexural Strength | Mpa≥ | 300 | 350 | 400 | 400 |
| Maximum temperature | ℃ | 1500 | 1500 | 1500 | 1500 |
| Line expansion coefficient | ×10-6/℃ | 7.5 | 8.2 | 8.2 | 8.2 |
| Dielectric constant | εr(20℃,1MHz) | 9 | 9.2 | 9.2 | 9.2 |
| Media loss | tanδ×10-4,1MHz | 3 | 2 | 2 | 2 |
| Volumetric resistivity | Ω·cm(20℃) | 1013 | 1014 | 1014 | 1014 |
| Breakdown strength | KV/mm,DC≥ | 20 | 20 | 20 | 20 |
| Acidic resistance | mg/cm2≤ | 0.7 | 0.7 | 0.7 | 0.7 |
| Alkaline resistance | mg/cm2≤ | 0.2 | 0.1 | 0.1 | 0.1 |
| Abrasion resistance | g/cm2≤ | 0.2 | 0.1 | 0.1 | 0.1 |
| Compressive strength | Mpa≥ | 2500 | 2500 | 2500 | 2800 |
| Flexural Strength | Mpa≥ | 200 | 350 | 350 | 350 |
| Thermalcoefficient | W/m·K(20℃) | 20 | 25 | 25 | 25 |
Properties of Alumina/Aluminum Oxide (Al2O3)
1.Very good electrical insulation (1x1014 to 1x1015 Ωcm)
2.Moderate to extremely high mechanical strength (300 to 630 MPa)
3.Very high compressive strength (2,000 to 4,000 MPa)
4.High hardness (15 to 19 GPa)
5.Moderate thermal conductivity (20 to 30 W/mK)
6.High corrosion and wear resistance
7.Good gliding properties
8.Low density (3.75 to 3.9 g/cm³)
9.Operating temperature without mechanical load 1,000 to 1,500°C.
10.Bioinert and food compatible
Products and Aplications
– Pieces, Plates, Boards, Trays, etc. in Alumina-Ceramic / Cordierite-Mullite
– Tubes, Rods, Rollers, Supports, etc. in Alumina-Ceramic / Cordierite-Mullite
– Protection, Thermocouples, Insulation, etc. in Alumina-Ceramic / Cordierite-Mullite
– Pieces, Plates, Tubes, Rods, Rollers, etc. in Zirconium Oxide
– others
Customization & Machining Service:
As a ceramic plates manufacturer,us offer a wide of the ceramic specification,and customized&machinables. Get a Quote On Your Customized Now!! or up a files by EMAIL.
Our Custom Capabilities:
1.High Purity Martoxid Powder
2.OEM Support, More Than 10 Technicians With 5-Year R&D Experience
3.35000 ㎡workshop, annual output could reach hundred million pieces.
4.All crafts are inspected strictly based on drawings,checked each month.
5.Best Service And Quick Delivery Via Fedex,DHL,UPS,TNT Etc.
| Technical reference of manufacture | |
| Dimensional accuracy | Up to 0.001mm |
| Concentricity | Up to 0.003mm |
| Parallelism | Up to 0.002mm |
| The inner hole tolerance | The minimum 0.005mm |
| Straight flute | The narrowest 0.1x100mm |
| The thickness of the size | Minimum to 0.02mm |
| The screw thread | Minimum internal thread M2 |
| Cylindricity | Up to 0.004mm |
| The linear tolerance | Up to 0.001mm |
| The smallest aperture | The minimum 0.07mm |
| Precision process | CNC maching,grinding,lapping |
| Surface finish | Glazed,polishing or metallized |
FAQ
1. Monthly Capacity: 50,000-60,000 pcs;
2. Material: OEM or as per your suggestion;
3. Lead time: about 7-10 days, pls confirm the quantities required;
4. Incoterm: FOB, CFR, CIF;
5. Delivery Cost: It is determinated by the destination port;
6. Payment Term: PayPal; T/T; L/C.
7. Shipment: by sea, by air, by courier, by post, etc.
Feedback
1. For any query or doubt, please contact us firstly, we will update with you soon;
2. For any other satisfaction, please also feedback to us, which could improve our service better and better.
For more information about ceramics parts,please contact our engineers in time >>>
