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 |