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Specifications of olyphosphates incorporated magnesia-chrome bricks
| project | phosphate bricks | alkali-resisting bricks | ||||
| ZS-F80 | ZS-F75 | NJ-30 | ||||
| working lining | thermal-protective coating | working lining | hermal-protective coating | working lining | hermal-protective coating | |
| AL2O3≥ | 80 | 45 | 75 | 45 | ≤3O | |
| refractability≥ | 1770 | 1770 | 1610 | |||
| volume concentration g/cm3≥ | 2.8 | ≤1.8 | 2.7 | ≤1.8 | 2.1 | ≤1.7 |
| cold crushing strengthpa≥ | 80 | 16 | 80 | 16 | 50 | 16 |
| 0.2MPatemperature≥ | 1450 | 1350 | 1250 | |||
| resistancetothermalshocks 1100≥ | 20 | 20 | 20 | |||
| dead burnt | 1450×2h ±0.1 | 1350×2h -0.5 | 1100×2h-0.4 | |||
| W/m.K 350≤ | 0.75 | 0.75 | 0.75 | |||
| MgO%≥ | 60 | 65 | ||||||
| Cr2O3%≥ | 12 | 8 | ||||||
| SiO2%≤ | 4 | 4 | ||||||
