| Item | Common Type | Phosphate Bonded Type | |||||||||
| LN-55A | LN-65A | LN-75A | LN-85A | LN-55B | LN-65B | LN-75B | LN-85B | ||||
| Al2O33 (%) ≥ | 55 | 65 | 75 | 85 | 55 | 65 | 75 | 85 | |||
| Refractoriness(℃) ≥ | 1770 | 1790 | 1790 | 1790 | 1770 | 1790 | 1790 | 1790 | |||
| Cold Flexural Strength (Mpa) ≥ | 110℃ After Drying | 1.0 | 1.0 | 1.0 | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 | ||
| 1400℃*3h After Burning | 4.0 | 4.0 | 4.0 | -- | 6.0 | 6.0 | 6.0 | -- | |||
| 1500℃*3h After Burning | -- | 6.0 | -- | 6.0 | |||||||
| Refractoriness Under Load 2%(℃) ≥ | -- | 1300 | 1400 | 1400 | 1600 | ||||||
| Permanent Linear Change (%) | 1400℃*3h After Burning | 1-5 | 1-5 | 1-5 | -- | 1-5 | 1-5 | 1-5 | -- | ||
| 1500℃*3h After Burning | -- | 1-5 | -- | 1-5 | |||||||
| Bonding Time (Min) | 1-3 | ||||||||||
| Particle Size (%) | -0.1mm | 100 | |||||||||
| +0.5mm | 2 | -- | |||||||||
| -0.074mm | 50 | 40 | 50 | 40 | |||||||
