Physical Parameters of High Aluminum Refractory Castables
| Item | G-15B | G-15 | G-16 | |
|---|---|---|---|---|
| Maximum service temperature，℃ | 1400 | 1500 | 1600 | |
| Al2O3 ，% | ≥65 | ≥75 | ≥78 | |
| SiO₂，% | 25 | 20 | 15 | |
| B.D After Drying at 110℃，g/cm³ | 2.5 | 2.6 | 2.65 | |
| Cold Bending Strength，Mpa | 110℃*24h | 8 | 8 | 10 |
| 1100℃*3h | 8 | 8 | 10 | |
| Cold Compressive Strength，Mpa | 110℃*24h | 70 | 80 | 100 |
| 1100℃*3h | 70 | 80 | 100 | |
| Linear Change Rate After Burning PLC，% | 1100℃*3h | ±0.3 | ±0.3 | ±0.3 |
| Construction Reference Water Consumption，% | 6-7 | 6-7 | 5.5-6.5 | |
Advantages of High Aluminum Castables
High-temperature resistance;
High refractoriness;
Good wear resistance;
Strong thermal shock resistance;
Strong chemical resistance;
Low bulk density;
Low porosity;
High compressive strength.
Application of High Alumina Castable Refractory
High-aluminum castables are commonly used for prefabricated blocks lining equipment in the following industries:
Steel industry: Ladles, hot blast furnaces, refining furnaces, heat treatment furnaces, blast furnaces, iron-making furnaces, etc.
Petroleum industry: Catalytic reaction equipment, etc.
Chemical industry: Tunnel kilns, crucible furnaces, incinerators, etc.
Cement industry: Cement kiln, heating furnace, soaking furnace, rotary kiln, etc.
Refractory industry: Refractory prefabricated blocks, etc.
Electric power industry: Boilers, etc.