PRODUCT
PRODUCT DISPLAY
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TIANAO REFRACTORY TECHNOLOGY
Dry materials for working lining of tundishes
The product has two series of MgO and MgO-CaO materials.
It does not contain the harmful impurity--- sulphur and phosphorus etcs, during the operating don' t need add the water, so it has the advantages of corrosion resistance, the erosion resistance, cleaning the molten steel, prolong the service life and easily takes the residual out from the permanent lining of the tundishes.
Product parameters
Index | MD-1 | MD-2 | MD-3 | MD-1 | MD-2 | MD-3 |
MgO% | ＞88 | ≥85 | ≥85 | ≥78 | ≥70 | ≥60 |
CaO% | ≤3.0 | ≤3.0 | ≤3.0 | ≥15 | ≥20 | ≥30 |
SiO2% | ≤2.0 | ≤2.2 | ≤2.5 | ＜3.0 | ＜3.0 | ＜3.0 |
150℃×3hB.D(g/cm3) | ≥2.4 | ≥2.2 | ≥2.0 | ≥2.1 | ≥2.0 | ≥2.0 |
150℃×3h bending（MPa) | ≥8.0 | ≥5.0 | ≥4.0 | ≥3.0 | ≥3.0 | ≥2.0 |
150℃×3h pressure（MPa) | ≥16.0 | ≥12.0 | ≥9.0 | ≥5.0 | ≥5.0 | ≥5.0 |
