Character of the product:
They are made mainly of electric melting corundum.They are made under high pressure and high temperature.Thay are steady under high pressure and high temperature. They have low stoma rate,Low expanding,and can resist steam/eroding and oxide.The size are accurate.
| Items | Mullite combination corundum bricks | Composite Brown corundum bricks | Mullite bricks |
| AL2O3 %≥ | 85 | 78 | 68 |
| SiC %≥ | 14 | ||
| Bulk Density g/cm³≥ | 3.2 | 2.9 | 2.5 |
| Cold Crushing Strength MPa ≥ | 90 | 98 | 88 |
| Reheating Linear Change %(1500℃×2h)≥ | +0.1~-0.2 | +0~+0.2 | +0~+0.2 |
| Apparent Porosity % ≤ | 18 | 18 | 18.5 |
| Load softening start temperature 0.2Mpa≥ | 1700 | 1660 | 1620 |
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