Corundum Brick
Negotiable /Piece
Min.Order:100 Pieces
Shandong Leibao Zirconium Sci&Tech Co.,Ltd.
Characteristics:
1,The sintered corundum products were produced by sintering of high purity fused corundum.
2,high bulk density, high compressive strength,
3,good thermal shocking resistance,
4, good corrosion resistances to acids and alkali.
5, They are not influenced by H2, CO gases at use.
Applications: Widely used as linings in decomposing furnaces for petroleum and chemical industry, as well as chemical fertilizer industry. They also used as high temperature kiln linings and furniture’s in metallurgical industry.
Chemical and Physical Properties of Corundum Products Indexes Items | High purity corundum bricks DL-98 | Normal corundum bricks DL-95 | Normal corundum bricks DL-90 | Mullite corundum Bricks MDL-80 | Chromium oxide corundum Bricks GDL-85 | |
Chemical composition | Al2O3% | 98.5 | 95 | 90 | 80 | 85 |
Cr2O3% |
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SiO2% | 0.3 | 3.0 | 9.0 | 18 | 0.2 | |
Fe2O3% | 0.2 | 0.2 | 0.5 | 0.5 | 0.2 | |
R2O% | 0.3 | 0.6 | 0.6 | 0.4 | 0.5 | |
Bulk density g/cm3 | 3.0 | 2.9 | 2.9 | 2.7 | 3.1 | |
Compressive strength at normal temperature MPa | 75 | 100 | 100 | 60 | 80 | |
Fire resistant °C | 1790
| 1790 | 1790 | 1790 | 1790 | |
Soften point at 0.2 MPa load KD °C | 1700 | 1650 | 1650 | 1700 | 1700 | |
Reheating linear shrinkages% 1600 °C ×3h | 0.2 | 0.2 | 0.2 | 0.3 | 0.2 | |
Thermal shock stability 1100 °C water | 6 | 10 | 10 | 20 | 15 |
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