White Corindon Dry Pressed High Alumina Refractory Bricks For Furnace Industry
White Corindon Dry Pressed High Alumina Refractory Bricks For Furnace Industry
LONGKETER supplying a comprehensive range of HIGH ALUMINA BRICKS.
Alumina content up from 45%-95% and service temperature up to 1900℃ are classified to HIGH ALUMINA BRICKS.
Typical Applications
•Good for iron and steel marking operation at the area of working zone in ladle and EAF roof
•For reheating furnace such as anchor brick and burner block
•Transition and cooling zone of rotary cement kiln , lime shaft kiln etc
•Bottom and door foundry air furnace and side wall of aluminum refining melting furnace , etc
Note:Special-shaped HIGH ALUMINA BRICKS is more expensive than commom square or rectangle ones.
HIGH ALUMINA BRICKS Product Data
| Material | Common | Special | |||||||||||||
| Item | SK36 | SK38 | TS80 | TS85 | SL-92 | SL-90 | SL-85 | Sl-80 | SL-75 | SL-70 | SL-60 | SL-50 | |||
|
Pyrometric Cone Equivalent Orton cone |
35-36 | 37-38 | 38 | >38 | 40 | 40 | 40 | 39 | 39 | 38 | 37 | 36 | |||
| Refractoriness (℃) | 1785 | 1810 | 1835 | 1840 | – | – | – | – | – | – | – | – | |||
| 0.2 MPa soft under load (%) | – | – | – | – | 1700 | 1700 | 1700 | 1670 | 1650 | 1580 | 1550 | 1500 | |||
| Bulk Density (kg/m³) |
2300- 2350 |
2400- 2450 |
2550- 2650 |
2650- 2750 |
3.10 | 2.95 | 2.90 | 2.85 | 2.70 | 2.62 | 2.50 | 2.40 | |||
| Apparent Porosity (%) |
20.0- 22.0 |
19.0- 20.0 |
18.0- 19.0 |
17.0- 18.0 |
16 | 16 | 19 | 18 | 18 | 18 | 18 | 18 | |||
| Cold Crushing Strength (MPa) | 45-48 | 50-55 | 60-65 | 70-75 | 80 | 80 | 800 | 750 | 700 | 700 | 650 | 600 | |||
| Modulus of Rupture (kg/cm²) |
70- 80 |
80- 90 |
90- 100 |
150- 180 |
– | – | – | – | – | – | – | – | |||
|
Thermal Expanison at 1000℃ (%) |
– | – | – | – | – | – | 0.75 | 0.7 | 0.65 | 0.60 | 0.55 | 0.50 | |||
|
Reheat test, permanent linear change after heating at |
1500℃, 2h(%) |
– | – | – | – | ±0.2 | ±0.2 | ±0.2 | ±0.2 | ±0.2 | ±0.2 | ±0.2 | ±0.2 | ||
| 1400℃(%) | (+)0.5 | (+)1.00 | (+)1.02 | – | – | – | – | – | – | – | – | – | |||
| SiO2 (%) | 38.2 | 20.2 | 14.0 | 8.7 | – | – | – | – | – | – | – | – | |||
| Al2O3 (%) |
48- 55 |
70- 75 |
81.1 | 85 | 92 | 90 | 85 | 80 | 76 | 70 | 65 | 50 | |||
| Fe2O3 (%) | 1.8 | 1.8 | 1.8 | 1.8 | 0.8 | 0.8 | 1.0 | 1.0 | – | – | – | – | |||
| Cao (%) | 0.4 | 0.4 | 0.3 | 0.2 | – | – | – | – | – | – | – | – | |||
| Na2O+K2O+Li2O (%) | 0.5 | 0.5 | 0.3 | 0.2 | – | – | – | – | – | – | – | – | |||
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