P-89
Periclase refractories according to
GOST 4689-94
Burnt periclase products, made of sintered periclase powders are used for laying of bottoms, slopes and walls of open-hearth furnaces predominantly above slag belt, as well as for axis - laying of other high temperature furnaces.
The products are laid on wooden pallet, laid with cardboard sheets, protected with cardboard angles along the perimeter, wrapped with stretch-film and wrapped with polypropylene strip.
Technical requirements
| Parameter description | Value |
|---|---|
| CaO, % | ≤ 4,5 |
| Compression ultimate strength, N/mm2, not less than | 40 |
| Fusion point, °С, not less than | 1500 |
| Interconnected porosity, %, not more than | 26 |
| MgO, % | ≥ 89 |
Specification
| Parameter description | Value |
|---|---|
| Type | high-magnesia |
| Group | periclase (MgO ≥ 85%) |
| 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 laying of high temperature furnaces |
| Reference document for product properties | Periclase refractories according to GOST 4689-94 |
| Reference documents for product dimensions | Periclase refractories according to GOST 4689-94 |