Product Category

High Alumina Brick

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Major component of high alumina refractory bricks is α-Al2O3 and Mulite (3Al2O3.2SiO2). Therefore this product has a mechanical strength and high heat resistance, good durability wholesale, low thermal expansion. Thermal resistance of high alumina ceramic products depends on high levels of aluminum in each product.

A type of refractory chamotte brick after the popular, widely used in all types of industrial furnaces in these parts that require high temperature chamotte bricks or tiles dinat not meet.

Based on the thermal resistance corresponding to the content of Al2O3 in the product divided into high alumina refractory bricks of various kinds:

- High alumina brick 45 ÷ 54%
- High alumina brick 55 ÷ 65%
- High alumina brick 66 ÷ 74%
- High alumina brick 75 ÷ 85%
- High alumina brick > 85%
 
Application: built wall oven, wall oven, stove top, oven chamber of the type of iron, steel, tunnels, ceramics, glass, iron furnace, incinerator for medical waste incinerators, electric oven type ...
 
Specifications
 
No.
Properties
Unit
Type of High Alumina Brick
HAL-80
HAL-70
HAL-60
HAL-50
HAL-45
1
Al2O3 Content
%
80÷85
70÷80
60÷65
50÷55
45÷50
2
Refractoriness
0C
1790
1790
1770
1750
1750
3
Parmanent linear change(2h x temp)
%
oC
< 0,7
 1500
< 0,7
 1500
 
< 0,6
 
< 0,6
 
< 0,6
4
Refractoriness under load 2kg/cm2
oC
1550÷
1650
1500÷1650
1450÷1500
1420÷1570
1400÷1570
5
Cold crushing strength
Mpa
100
> 80
65÷70
50÷60
40÷50
6
Porosity
%
18÷20
18÷20
18÷21
18÷21
18÷21
7
Bulk density
g/cm3
> 2.75
2.65÷
2.75
2.45÷
2.60
2.35÷
2.55
2.30÷
2.50
8
Thermal shock resistance (850oC-Water)
Time
>30
>30
>30
>30
>30
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