Name | High Alumina Bricks | ||||||||||
Brands | LZ-75 | LZ-65 | LZ-55 | LZ-48 | |||||||
Al2O3 | ≥75 | ≥65 | ≥55 | ≥48 | |||||||
Apparent porosity% | ≤23 | ≤23 | ≤22 | ≤22 | |||||||
Cold crushing strength MPa | ≥53.9 | ≥49.0 | ≥44.1 | ≥39.2 | |||||||
Refractoriness ℃ | ≥1790 | ≥1790 | ≥1770 | ≥1750 | |||||||
Refractoriness under load℃ | ≥1520 | ≥1500 | ≥1470 | ≥1420 | |||||||
Linear change after reheating(1500℃*2h)% | +0.1;-0.4 | +0.1;-0.4 | +0.1;-0.4 | (1450℃*2h) | +0.1;-0.4 |
Contact Person : | Elizabeth |
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