Product Details
Magnesia Dolomite brick are made from qualified magnesite and dolomite as the raw materials that are processed through secondary-burning (calcinations, fine grinding, briquetting, dead burned). The MGO/CaO ratio is taken as the kind of Mag-dolomite brick or unshaped monolithics in accordance with customers requirement. Pitch or paraffin impregnation pressed by vacuum is needed after burned under high temperature. They have the features of high temperature performance and resistance to slag and widely used in the secondary refining vessels as VOD, AOD; permanent linings or bottom of converter; ladle and also the cement kiln.
Features Of Magnesia Dolomite Brick
- Good thermal shock resistance performance
- Excellent resistance in slag abrasion
- Good cold crush strength
- Higher temperate resistant with good refractoriness
- low creep and better flaking resistant.Good
Applications Of Magnesia Dolomite Brick
- Mainly used for steel refining furnaces like AOD,VOD furnace
Specifications Of Magnesia Dolomite Brick
- Mgo and CaO content
- Widely used throughout steel refining furnaces like AOD,VOD furnace
Physical And Chemical Indicators For Magnesia Dolomite Brick
| Brand Properties | MD15 | MD20 | MD25 | MD30 | MD40 | |
| Bulk Density (g/cm3) | 3.03 | 3.03 | 3.03 | 3.03 | 3 | |
| Apparent Porosity (%) | 13 | 12 | 12 | 13 | 13 | |
| Cold Crushing Strength (MPa) | 80 | 90 | 80 | 80 | 80 | |
| Permanent Linear Change (%)@ 1,500℃ x 2hrs | — | -0.35 | — | -0.61 | — | |
| Refractoriness Under Load (℃) @0.2MPa | 1700 | 1700 | 1700 | 1700 | 1700 | |
| Chemical Composition (%) | MgO | 80.3 | 76.3 | 70.3 | 66.3 | 56.3 |
| CaO | 17 | 21 | 27 | 31 | 41 | |
| Al2O3 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | |
| Fe2O3 | 0.7 | 0.7 | 0.7 | 0.7 | 0.7 | |
| SiO2 | 1.3 | 1.3 | 1.3 | 1.3 | 1.2 | |
Pictures Of Dolomite Brick
