Sillimanite Brick
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- Item : Sillimanite Brick
- Apparent Prosity: ≤18%
- Bulk Density: ≥2.4 g/cm3
- Cold Crushing Strength: ≥45 Mpa
- Reversible Thermal Expansion 1000℃: 0.55
- 0.2Mpa Refractoriness Under Load T0.6 ℃: ≥1550
Features
Description:
Silimanite brick is a kind of refractoriness which made by silimaniteand other minerals. And silimanite can be transformed to be mullite above 1500℃ high temprature.
The main applications are:
1,Rider arches;
2,Forehearth superstracture;
3,Bushing for rochwool and fiber glass;
4,High temprature furnaces, such as glass melting furnace,etc .
Advantages:
1,Corrosion-resistant;
2,Dense structure;
3,Good thermal shock resistance.
Parameter
| Item | GXS-50 | GXS-60 | GXS-62 | |
| Chemical composition | Al2O3 | ≥50 | ≥60 | ≥62 |
| SiO2 | ≤45 | ≤38 | ≤33 | |
| Fe2O3 | ≤1.2 | ≤1.0 | ≤1.0 | |
| Apparent Porosity (％) | ≤18 | ≤18 | ≤17 | |
| Bulk Density g/cm3 | ≥2.4 | ≥2.5 | ≥2.55 | |
| Cold Crushing Strength Mpa | ≥45 | ≥50 | ≥60 | |
| 0.2Mpa Refractoriness Under Load T0.6 ℃ | ≥1550 | ≥1600 | ≥1650 | |
| Permanent Linear Change On Reheating （%）1500℃X2h | ±0.1 | ±0.1 | ±0.1 | |
| Thermal Shock Resistances 100℃ water cycles | ≥20 | ≥20 | ≥20 | |
| Reversible Thermal Expansion 1000℃ | 0.55 | 0.6 | 0.6 | |
| Pyrometric Cone Equivalent S.C. SK | 35 | 36 | 38 | |
| Range of Application | Rider Arches | Superstructure forehearth | Superstructure forehearth | |
