CRK
Zirconia high refractories
Specification of Ukraine 26.2-00191738-004:2006 (with amendments No.1,2)
The products are used for laying of high temperature furnaces for quartz glass production and for continuous electrical furnaces lining.
The products are supplied on wooden pallets interlaid with cardboard, with protected corners, wrapped with stretch film and bundled with plastic strip.
Technical requirements
| Parameter description | Value |
|---|---|
| Al2O3, % | ≤ 2 |
| Apparent specific gravity, g/сm3 | 4,0 |
| Compression ultimate strength, N/mm2, not less than | 100 |
| Fire resistance, °С, not less than | 1800 |
| Interconnected porosity, %, not more than | 16,0 |
| SiO2, % | ≤ 5 |
| ZrO2 + HfO2, % | ≥ 90 |
Specification
| Parameter description | Value |
|---|---|
| Type | zirconium |
| Group | oxide zirconium |
| Refractoriness value | high fire resistance (1770 to 2000°С) |
| Porosity degree | dense (Ptot 10-16%) |
| Heat treatment method | burnt |
| Molding process | semidry forming |
| Binding type 1 | with inorganic binders |
| Binding type 2 | ceramic |
| Intended purpose | repair/construction |
| Reference document for product properties | Zirconia high refractories Specification of Ukraine 26.2-00191738-004:2006 (with amendments No.1,2) |