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Item | | AZS refractory brick | | | |||
| | 33-Y | 41-Y | 36-Y | |||
Al₂o₃ | | leavings | leavings | leavings | |||
Zro₂ | | 32-26 | 40-44 | 35-40 | |||
Sio₂ | ≤ | 16 | 13 | 14 | |||
Na₂o | ≤ | 1.45 | 1.3 | 1.45 | |||
Feo+Tio | ≤ | 0.3 | 0.3 | 0.3 | |||
Bulk density | ≥ | 3.75 | 3.95 | 3.6 | |||
Apparent porosity % | ≤ | 1.5 | 1.0 | 1.0 | |||
Glass volume(1500℃×4h) % | ≤ | 2 | 3 | 3 |