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Sillimanite Brick
Sillimanite Brick
Sillimanite Brick
  • Item : Sillimanite Brick
  • Apparent Prosity (%): ≤18
  • Bulk Density g/cm3 : ≥2.4
  • Cold Crushing Strength Mpa: ≥45
  • 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 under more 1500℃ high temprature.
Applications
Silimanite brick are mainly used in high temprature furnaces, such as glass melting furnace,etc
The main applications are:
1,Rider arches
2,Forehearth superstracture
3,Bushing for rochwool and fiber glass
Specifications
1,Dense structure
2,Good thermal shock resistance
Advantages
1,Corrosion-resistant;
2,High quality

Parameter

Physical and chemical index :

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


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