Phosphate-Bonded High Alumina Brick
Name |
Phosphate Brick |
Super RUL Brick |
Wear-resistant Brick |
Al 2 O 3 (%) ， ≥ |
75 |
80 |
80 |
Fe 2 O 3 (%), ≤ |
3.2 |
2.0 |
3.2 |
CaO (%),≤ |
0.66 |
/ |
0.6 |
Bulk density (g/cm 3 ) ,≥ |
2.77 |
2.90 |
2.75 |
Refractoriness (℃), ≥ |
1790 |
1790 |
1790 |
Apparent porosity (%),≤ |
/ |
18 |
/ |
Cold crushing strength (MPa), ≥ |
70 |
80 |
75 |
Refractoriness Under Load 0.2 MPa(℃), ≥ |
1350 |
1500 |
1300 |
Thermal shock resistance,(1100℃-water), ≥ |
10 |
20 |
10 |
Linear change after reheating (%) (1550℃×2h) |
/ |
+0.1 ~ -0.5 |
/ |