Kiln lining use alumina brick SK38 is made of highly sintered selected bauxite clinker using advanced technology and strict quality control at 1420-1530℃. The aluminum content of SK38 kiln lining use alumina brick is more than 70%.
–Kerui refractory material company
Kiln lining use alumina brick SK38 introduction
Kiln lining use alumina brick SK38 a neutral refractory containing more than 48% alumina. It is made of bauxite raw materials or high Al2O3 materials calcined, high thermal stability, refractoriness above 1770℃.
Kiln lining use alumina brick SK38 features:
- Fire resistance
The refractoriness of high alumina brick is higher than that of clay brick and semi-silicon brick, up to 1750~1790℃. - Softening temperature under load
Because of high Al2O3 in high aluminum products, less impurity mass, the formation of less fusible glass, so the load softening temperature is higher than clay brick, but because mullite crystals did not form a network organization, so the load softening temperature is still not high silicon brick. - Slag resistance
High aluminum brick Al2O3 more, close to the neutral refractory material, can resist the erosion of acid slag and alkaline slag, because it contains SiO2, so the ability of alkali slag is weaker than the ability of acid slag.
Kiln lining use alumina brick SK38 index
Refractory Fire Bricks | SK-36 | SK-37 | SK-38 | SK-40 |
AL2O3% (≥) | 55 | 65 | 70 | 82 |
Fe2O3% (≤) | 2 | 2 | 2 | 2 |
Refractoriness(SK) | 36 | 37 | 38 | 40 |
Refractoriness underload, 0.2MPa, °C (≥) | 1450 | 1480 | 1530 | 1600 |
Apparent porosity (%) | 20-23 | 20-23 | 20-22 | 18-20 |
Bulk density (g/cm³) | 2.25-2.4 | 2.3-2.5 | 2.4-2.6 | 2.5-2.7 |
Cold crushing strength ,MPa (≥) | 45 | 50 | 60 | 70 |
Kiln lining use alumina brick SK38 Standard size:
SK38 Refractory Fire Bricks is widely used in kiln masonry. The size of SK38 high alumina refractory brick is related to the calculation of kiln masonry consumption. Generally speaking, the standard size of SK38 high alumina refractory brick is 230*114*65mm, and the model is T3. Besides the standard SK38 brick, there are many other sizes. Also can be customized on color, size and shape, ect. Welcome to OEM and ODM.