High alumina bricks ranges are specially for hot blast stove .High pressure pressing and sintering in high temperature makes very good results of the products in RUL
High alumina bricks ranges are specially for hot blast stove .High pressure pressing and sintering in high temperature makes very good results of the products in RUL ,creep rate and thermal shock resistance .They are the best choice for large—middle hot blast.
Physical and chemical indexes
|
Item |
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 |
|
Reheating linear change (1500°C,2h) % |
+0.1-0.4 |
+0.1-0.4 |
+0.1-0.4 |
(1450°C,2h)+0.1-0.4 |
|
Refractoriness °C |
>1790 |
>1790 |
>1770 |
>1750 |
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