Alumina 99.5/99.7/99.8 industrial ceramic material family
Alumina 99.5/99.7/99.8 is a documented Techno Cera material family with its own listed density, strength and HV1 hardness properties.
Only the named publisher material grade or documented family and its listed reference properties. These are public catalog data, not lot-specific test results or an agreed acceptance specification. Actual properties and suitability depend on geometry, processing, loading and operating environment. No independent material validation, certification or medical/safety suitability is asserted. Slash-separated alumina purity headings or zirconia stabilizers are one grouped source column and one family record; the individual options are not additional products. The separate composition row does not justify a fixed composition for every option. Native kpsi units are preserved.
Specifications
| Attribute | Value | Conditions | Source |
|---|---|---|---|
| Density | 3.85 ± 0.05 g/cm³ | Original gm/cc density row for this named table column; measurement conditions not supplied. | Techno Cera original public information |
| Compressive strength | 360 ± 10 kpsi | Original kpsi row; not converted to MPa. Test temperature, method and specimen geometry not supplied. | Techno Cera original public information |
| Transverse breaking strength | 50 ± 4 kpsi | Original transverse-breaking row; test method and temperature not supplied. | Techno Cera original public information |
| Vickers hardness | 2000 HV1 | Original hardness row explicitly specifies Vickers HV1. | Techno Cera original public information |
Applications
- Custom ceramic seals, sleeves, crucibles and tubes
Sources and updates
Scope of this page: Only the named publisher material grade or documented family and its listed reference properties. These are public catalog data, not lot-specific test results or an agreed acceptance specification. Actual properties and suitability depend on geometry, processing, loading and operating environment. No independent material validation, certification or medical/safety suitability is asserted. Slash-separated alumina purity headings or zirconia stabilizers are one grouped source column and one family record; the individual options are not additional products. The separate composition row does not justify a fixed composition for every option. Native kpsi units are preserved.
Techno Cera original public information
Original publication · Techno Cera
Source accessed: 27 October 2026
Content updated 28 October 2026. Source dates describe the documents or the recorded access to them.
How information is documented