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Combined High Alumina Bricks for Refractory
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Product Description
Features: Strong volume stability at high temperatures, good thermal shock resistant, wear resistance and chemical attack resistance.
Applications: Transitional zone, reheater of cement rotary kiln and other thermotechnical equipment that requires good thermal shock resistance.
Physical andChemical Indicators:
|
Items |
Index |
|||
|
LZ-75 |
LZ-65 |
LZ-55 |
LZ-48 |
|
|
Al2O3 %,≥ |
75 |
65 |
55 |
48 |
|
Cold Crushing Strength, MPa ≥ |
54 |
49 |
44 |
40 |
|
Apparent Porosity, % ≤ |
23 |
23 |
22 |
22 |
|
Refractoriness Under Load, °C ≥ |
1520 |
1500 |
1470 |
1420 |
|
Linear Change on Rehearting, [1500°C×2h]% |
+0.1-0.4 |
+0.1-0.4 |
+0.1-0.4 |
[1500°C×2h] +0.1-0.4 |
|
Refractoriness, °C ≥ |
1790 |
1790 |
1770 |
1750 |
