Cylindrical sillimanite brick Low thermal expansion rate, erosion resistant, wear resistant, thermal shock resistant. Used in regenerators of glass industry and specific parts of metallurgy, ceramics and chemical industry.
Cylindrical sillimanite refractory bricks are special refractory materials made mainly from sillimanite - group minerals, formed by high - temperature firing or casting. Their unique barrel - shaped design optimizes high - temperature fluid guidance and sealing performance. After firing at 1450 - 1500℃, a stable mullite phase is formed, combining high mechanical strength with low thermal expansion.
Features and Performance
| Index Items | Machine-pressed | Cast | |||
| Al₂O₃ /% | ≥57 | ≥60 | ≥65 | ≥60 | |
| Fe₂O₃ /% | ≤1.2 | ≤1.0 | ≤1.0 | ≤1.0 | |
| Bulk density (g/cm³) | ≥2.40 | ≥2.45 | ≥2.50 | ≥2.45 | |
| Apparent Porosity (%) | ≤18 | ≤18 | ≤17 | ≤18 | |
| Cold Compressive Strength (MPa) | ≥70 | ≥70 | ≥70 | ≥60 | |
| Load-Softening Temperature at 0.2MPa,T0.6/℃ | ≥1560 | ≥1580 | ≥1650 | ≥1550 | |
| Thermal Shock Stability (1100℃, water-cooled) (times) | ≥25 | ≥20 | ≥15 | ≥25 | |
| Permanent Linear Change on Heating (1450℃×2h) (%) | -0.2 - +0.2 | -0.2 - +0.2 | -0.2 - +0.2 | -0.2 - +0.2 | |
Also Called:Silica Mullite Brick;
Al₂O₃:60-65%;
Bulk Density:≥2.55g/cm³;
SiO₂:≥97%;
Bulk Density:≥1.86g/cm³;
Cold Crushing Strength:≥40MPa;
WhatsApp
WeChat
WhatsApp ID: +86 190 5961 2888
WeChat ID: +86 190 5961 2888
