DN
SILICA REFRACTORIES ACCORDING TO
SPECIFICATION OF UKRAINE 23.2-00191738-010:2018
Silica refractories of DIN grade are used mainly for heat-treatment furnace laying.
In addition, the DIN grade products are applied in glass industry for laying of walls and arch of open-hearth glass furnace regenerators.
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 |
|---|---|
| Apparent specific gravity, g/сm3 | 1,9 |
| Compression ultimate strength, N/mm2, not less than | ≥17,5 |
| Density, g/сm3 | ≤2,40 |
| Fire resistance, °С, not less than | 1690 |
| Fusion point, °С, not less than | 1640 |
| Interconnected porosity, %, not more than | 25 |
| SiO2, % | ≥94 |
Specification
| Parameter description | Value |
|---|---|
| Type | siliciferous |
| Group | silica (SiO2 > 93%) |
| Refractoriness value | fire resistance (1580 to 1770°С) |
| Porosity degree | average dense (Ptot 20-30%) |
| Heat treatment method | burnt |
| Molding process | semidry forming |
| Binding type 1 | with inorganic binders |
| Binding type 2 | ceramic |
| Intended purpose | repair/construction |
| scope of application | for lining of heat-treatment furnaces and other heat aggregates |
| Reference document for product properties | Silica refractories according to Specification of Ukraine 23.2-00191738-010:2018 |
| Reference documents for product dimensions | Refractories of general purpose according to DSTU GOST 8691:2009 (ISO 5019-1-84) (with amendments No.1,2,3,4) |