Refractory Alumina Bricks High Cold Crushing Strength High Alumina Insulating Fire Bricks
Introduction:
High alumina bricks, which is manufactured to meet the requirements of neutral refractoriness where safe working temperature is more than 1300 degree centigrade. We offer High Alumina Bricks in different specifications as per customer requirements.
Features:
High alumina bricks has the feature of has advantages with small bulk density, high cold crushing strength, and high refractoriness under load, small dimension tolerance and good thermal shock resistance.
Application:
High alumina brick is widely used in linings in parts of furnace without strong high-temperature molten material erosive.
Technical Index:
| Item |
High Alumina Insulating Brick |
| LG-1.0 |
LG-0.9 |
LG-0.8 |
LG-0.7 |
LG-0.6 |
LG-0.5 |
LG-0.4 |
| Al2O3 % |
≥48 |
| Fe2O3 % |
≤2.0 |
| Bulk Density g/cm3 |
≤1.0 |
≤0.9 |
≤0.8 |
≤0.7 |
≤0.6 |
≤0.5 |
≤0.4 |
| Cold Crushing Strength Mpa |
≥3.92 |
≥3.43 |
≥2.94 |
≥2.45 |
≥1.96 |
≥1.47 |
≥0.78 |
| Thermal Conductivity Coefficient w/m.k |
≤0.45 |
≤0.45 |
≤0.35 |
≤0.35 |
≤0.3 |
≤0.25 |
≤0.20 |
| Test Temperature of Permanent Linear Change Rate≤2% ℃ |
1400 |
1400 |
1400 |
1350 |
1350 |
1250 |
1250 |
Brick Size or Shapes:
The shape can be customized according to the brick drawings.
| Brick Size (mm) |
| Straight Shape |
Side Arch |
|
230*114*65
250*123*65
171*113*65
230*114*20
230*114*30
230*114*40
230*57*65
520*230*113
650*230*113
780*230*113
452*230*65
230*150*75
345*150*75
|
230*65/55*114
230*65/45*114
230*65/55*171
230*65/45*171
230*114*65/55
230*114*65/45
230*150/120*75
230*150/110*75 |
