High quality acid resistant insulation high aluminum refractory ladle lining brick against peeling
High quality acid resistant insulation high aluminum refractory ladle lining brick against peeling
Key Features for HIGH ALUMINA BRICKS
• Excellent corrosion resistance to neutral slag and metal penetration resistance at high liquid temperature.
• Improved thermal shock & corrosion resistance at high temperature
• High density, high mechanical strength and good volume stability at high temperature
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
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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