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Ordinary high alumina bricks
DETAILS
Technical Indicators
Index item | CJ-LZ-48 | CJ-LZ-55 | CJ-LZ-65 | CJ-LZ-70 | CJ-LZ-75 | CJ-LZ-80 | Al2O3,%, ≥ | 48 | 55 | 65 | 70 | 75 | 80 | Fe2O3,%, ≤ | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 | Density, ≥g/cm3 | 2.2 | 2.2 | 2.2 | 2.5 | 2.5 | 2.6 | 0.20 MPa Load softening start temperature, ≥℃ | 1420 | 1450 | 1500 | 1510 | 1520 | 1530 | Apparent porosity %, ≤ | 24 | 24 | 26 | 26 | 26 | 23 | Normal atmospheric temperature Compressive strength ,a/MPa, ≥ | 40 | 45 | 50 | 55 | 60 | 70 | Heating Permanent Line Change: /% | 1450℃x2h -0.4-0.1 | 1450℃x2h -0.4-0.1 | 1450℃x2h -0.4-0.1 | 1450℃x2h -0.4-0.1 | 1500℃x2h -0.4-0.2 | 1500℃x2h -0.4-0.2 | Note: |
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AVAILABLE SIZES
Index item | CJ-LZ-55G | CJ-LZ-65G | CJ-LZ-75G | Al2O3,%, ≥ | 55 | 65 | 75 | Fe2O3,%, ≤ | 2.0 | 2.0 | 2.0 | Density, ≥g/cm3 |
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| 0.20 MPa Load softening start temperature, ≥℃ | 1470 | 1500 | 1520 | Apparent porosity %, ≤ | 19 | 19 | 19 | Normal atmospheric temperature Compressive strength ,a/MPa, ≥ | 50 | 60 | 65 | Heating Permanent Line Change: /% | 1500℃x2h -0.2-0 | 1450℃x2h -0.2-0 | 1500℃x2h -0.2-0.1 | Note: | “G” is a brick for blast furnace | “G” is a brick for blast furnace | “G” is a brick for blast furnace |
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