Alkali Resistant Brick

Place of Origin: Xinmi, China
Shape: Brick
Material: Low Alkali Alumina Clay
SiO2 Content: 60~70%
Application: Industrial Furnace
Package: Wooden Pallet 
Characters :
High strength
Stable volume
Good alkali resistance
Longer service life 

Product Overview

Alkali resident refractory brick is mainly used in cement kilns, made of low alkali alumina refractory clay as the main raw material firing fire clay bricks, with alkali erosion characteristics in cement kiln system. This product adopts the high temperature ceramic crystal science phase structure, sealed the product of open pores channel, so as to achieve the anti chemical erosion and prevent infiltration and deposition of material cracking. This series of products are well used in the cement kiln preheating systems.  

Application

Alkali resistant brick can be widely used for cement rotary kiln, flat furnace, oxygen converter, electric furnace, nonferrous metal smelting equipment and glass industry and some high temperature equipment.

Specification

Item

Common Type

High Strength Type

Arch Type

SiO2%(≤)

60-70

60-70

60-65

Al2O3%(≥)

25-30

25-30

30-35

Apparent Porosity(%)

21

20

25

Cold Compressive Strength,Mpa(≥)

30

60

30

Refractoriness under load,0.2Mpa(≥)

1350

1300

1400

Thermal Shock Resistance (1100ºC, Cycle)

30

20

30

Thermal Conductivity(1000ºC)

1.30

1.40

1.30

Thermal expansion coefficient (900ºC,%)

0.70

0.70

0.65

Alkali Resistance

Qualified 

Qualified

Qualified

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