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Product Description
High Alumina Brick & Low-creep High Alumina Brick for Hot Blast Furnace
Items | High Alumina Brick | Low-creep High Alumina Brick | |||||
RL-65 | RL-55 | RL-48 | DRL-145 | DRL-140 | DRL-135 | DRL-130 | |
Al2O3 % ≥ | 65 | 55 | 48 | 65 | 65 | 65 | 60 |
B.D g/cm³ ≥ | — | — | — | 2.6 | 2.5 | 2.45 | 2.4 |
A.P % ≤ | 22（24） | 22（24） | 22（24） | 21 | 22 | 22 | 22 |
C.C.S Mpa ≥ | 50 | 45 | 40 | 60 | 55 | 55 | 55 |
℃ Refractoriness ≥ | 1780 | 1760 | 1740 | 1790 | 1790 | 1790 | 1770 |
0.2Mpa R.U.L ℃ T0.6 ≥ | 1500 | 1470 | 1420 | 1600 | 1580 | 1550 | 1520 |
P.L.C % | 1500℃×2h +0.1~-0.4 | 1500℃×2h +0.1~-0.4 | 1450℃×2h +0.1~-0.4 | 1550℃×2h +0.1~0.4 | 1450℃×2h +0.1~0.2 | 1450℃×2h +0.1~0.4 | 1450℃×2h +0.1~0.4 |
Creep rate % ≤(0.2Mpa×50h) | — | — | — | 1450℃ 0.8 | 1400℃ 0.8 | 1350℃ 0.8 | 1300℃ 0.8 |
T.S.R(1100℃ water-cycle)≥ | 6 | furnish data measured | |||||
High Alumina Bricks are mainly used to build blast furnace, hot blast stove, top of electric furnace, air furnace, reverberatory furnace and lining of rotary kiln.
High Alumina Brick is also can be used as checker bricks of heat accumulating type, chock plug for gating system, nozzle brick and so on.
