High Alumina Brick HA-60-70-75-80
High Alumina Brick HA-60
|
Item |
Standard |
|
Al2O3(%) |
≥60 |
|
SIO2(%) |
32 |
|
Fe2O3(%) |
≤1.7 |
|
Na2O+K2O(%) |
＜2.3 |
|
Refractoriness |
1790 |
|
refractoriness under load 0.2mpa(℃) |
1450 |
|
Porosity(%) |
22 |
|
Bulk density(g/cm3) |
2.33 |
|
Cold cushing strength (mpa) |
≥50 |
|
Thermal expansion at 1000℃(%) |
≤0.3 |
|
Reheating shrinkingchange(%) 1500℃X24h |
-0.3 |
High Alumina Brick 75%
Specification:
|
Brand |
FR75 |
|
Al2O3(%) |
≥75 |
|
Fe2o3(%) |
≤2.0 |
|
Refractoriness |
1770 |
|
refractoriness under load 0.2mpa(℃) |
1520 |
|
Porosity(%) |
22 |
|
Bulk density(g/cm3) |
≥2.7 |
|
Cold cushing strength (mpa) |
≥60 |
|
Thermal expansion at 1000℃(%) |
≤0.5 |
High Alumina Brick 85%
Specification:
|
Brand |
FR85 |
|
Al2O3(%) |
≥85 |
|
Fe2o3(%) |
≤1.8 |
|
Refractoriness |
1830 |
|
refractoriness under load 0.2mpa(℃) |
1550 |
|
Porosity(%) |
22 |
|
Bulk density(g/cm3) |
≥2.8 |
|
Cold cushing strength (mpa) |
≥70 |
|
Thermal expansion at 1000℃(%) |
≤0.5 |
