| Shape |
Brick |
| Material |
Alumina Block |
High alumina bricks
Items
Index LZ75LZ65LZ55LZ48ω(Al2O3)/%≥75≥65≥55≥48Refractoriness /≥1790≥1790≥1770≥1750Refractoriness under load of 0.2MPa /≥1520≥1500≥1470≥1420Linear change /%1500,2h+0.1∼-0.41450,2h+0.1∼-0.4Apparent porosity /%≤23≤22Ambient compressive strength /MPa≥53.9≥49.0≥44.1≥39.2