Blast furnace high-aluminum bricks
|
Item |
Unit |
GL-65 |
GL-55 |
GL-48 |
|
|
Al2O3 ≥ |
% |
65 |
55 |
48 |
|
|
Fe2O3 ≤ |
% |
2.0 |
2.0 |
2.0 |
|
|
Apparent porosity ≤ |
% |
19 |
19 |
18 |
|
|
Normal temperature compressive strength ≥ |
Mpa |
58.8 |
49 |
49 |
|
|
Softening onset temperature at 0.2 MPa load ≥ |
℃ |
1500 |
1480 |
1450 |
|
|
Reburning line change rate |
1500℃×2ｈ |
% |
+0— -0.2 |
+0— -0.2 |
-- |
|
1450℃×2ｈ |
―― |
―― |
+0— -0.2 |
||
|
Fire resistance ≥ |
℃ |
1790 |
1770 |
1750 |
|
|
Air permeability |
mDa |
Must be tested |
Must be tested |
Must be tested |
|
Relevant case
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Address：
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