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Sillimanite Special Brick

Sillimanite Special Brick

  • Cold Crushing Strength Mpa :≥45
  • 0.2Mpa Refractoriness Under Load T0.6 ℃:≥1550
  • Permanent Linear Change On Reheating (%)1500℃X2h:±0.1
  • Thermal Shock Resistances 100℃ water cycles:≥20
  • Reversible Thermal Expansion 1000℃:0.55
  • Pyrometric Cone Equivalent S.C. SK:35

Feature

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.
Silimanite brick are mainly used in high temprature furnaces, such as glass melting furnace,etc
►  The main applications are:
Rider arches
Forehearth superstracture
Bushing for rochwool and fiber glass
 ►  Specifications
Dense structure
Good thermal shock resistance
► Advantages
Corrosion-resistant;
High quality

Technical Data

Item GXS-50 GXS-60
Chemical composition Al2O3 ≥50 ≥60

 

SiO2 ≤45 ≤38

 

Fe2O3 ≤1.2 ≤1.0
Apparent Porosity% ≤18 ≤18
Bulk Density g/cm3 ≥2.4 ≥2.5
Cold Crushing Strength Mpa ≥45 ≥50
0.2Mpa Refractoriness Under Load T0.6 ℃ ≥1550 ≥1600
Permanent Linear Change On Reheating (%)1500℃X2h ±0.1 ±0.1
Thermal Shock Resistances 100℃ water cycles ≥20 ≥20
Reversible Thermal Expansion 1000℃ 0.55 0.6
Pyrometric Cone Equivalent S.C. SK 35 36
Range of Application Rider Arches Superstructure forehearth

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