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+86 189 3070 0197
Coke oven uses high aluminum refractory characteristics: fire temperature is generally not less than 1750-1790 ℃, the bricks has the strong resistance to erosion like acidic or alkaline slag ,but thethermal shock resistance is not quite good .
| Item | GL-65 | GL-55 | GL-48 |
| Al2O3 % ≥ | 65 | 55 | 48 |
| Fe2O3 % ≤ | 2.0 | 2.0 | 2.0 |
| Degree of fire resistance℃ ≥ | 1800 | 1780 | 1760 |
| Refractoriness under 0.2Mpa load ℃ ≥ | 1500 | 1480 | 1450 |
| Linear change on reheating % 1500℃x2h 1450℃x2h |
0 ~ -0.2 | 0 ~ -0.2 | 0 ~ -0.2 |
| Apparent porosity % ≤ | 19 | 19 | 18 |
| Cold compressive strength MPa | 58.8 | 49.0 | 49.0 |