Sillimanite Special Brick

Sillimanite Special Brick
Sillimanite Special Brick
Sillimanite Special Brick
Sillimanite Special Brick
Overview

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 is made by sillimanite and other minerals. And sillimanite can be transformed to be mullite under more 1500℃ high temperature.

Silimanite bricks are mainly used in high temperature 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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