Sillimanite Brick

Sillimanite Brick
Sillimanite Brick
Sillimanite Brick
Sillimanite Brick
Overview

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

Feature

Description

Sillimanite brick is a kind of refractoriness which made by sillimanite and other minerals. And silimanite can be transformed to be mullite under more 1500℃ high temprature.

Applications

Silimanite bricks are mainly used in high temperature 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

Technical Data
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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