Description
Magnesia-chrome bricks are refractory products mainly composed of magnesium oxide (MgO) and chromium oxide (Cr2O3), with periclase and spinel as the primary mineral components. These bricks have high refractoriness, high-temperature strength, strong resistance to alkaline slag erosion, excellent thermal stability, and a certain degree of adaptability to acidic slags.
Specification
| Item | Grade | |||||
| MGe-16A | MGe-16B | MGe-12A | MGe-12B | MGe-8A | MGe-8B | |
| ω(MgO)/%≥ | 50 | 45 | 60 | 55 | 65 | 60 |
| ω(Cr2O3)/%≥ | 16 | 16 | 12 | 12 | 8 | 8 |
| Apparent Porosity/%≤ | 19 | 22 | 19 | 21 | 19 | 21 |
| Cold Crushing Strength /MPa≥ | 35 | 25 | 35 | 30 | 35 | 30 |
| min30 | min20 | min30 | min25 | min30 | min25 | |
| Refractoriness Under Load / 0.2 MPa T0.6/℃ | 1650 | 1550 | 1650 | 1550 | 1650 | 1530 |
Applications
Used for the roof of open-hearth furnaces, the walls and roofs of electric furnaces and the linings of converters and steel ladle working linings.
Used for the burning zone of cement rotary kilns.
Used for the linings of non-ferrous metal smelting furnaces.
Used for the regenerator of glass kilns.
