Refractory Brick

Alkali Resistant Bricks

Alkali-resistant bricks are mainly used in open-hearth furnaces, oxygen-blowing converters, electric furnaces, non-ferrous metal smelting equipment, and glass industries, as well as some high-temperature equipment.


Product Details


Description of Alkali Resistant Bricks

 

Alkali-resistance brick is a kind of low alumina brick, the Al2O3 content is 30-25%, the main material is low alumina refractory clay, it is a kind of silica-alumina series refractory products with good alkali erosion resistance performance in cement kiln system.

 

Application of Alkali Resistance Bricks

 

1. Preheater equipment

2. Metallurgy furnace

3. Transfer zone of cement rotary kiln

4. Burning zone of cement rotary kiln

5. Other thermal equipment


Technical Dates of Alkali Resistant Bricks

 

Item

Al2O3(%)≥

SiO2(%)≥

A.P(%)≤

C.C.S.(MPa)≥

R.U.L@0.2MPa (℃)≥

T.S.R (1000℃)≥

T.C(350℃)W/m.K≤

Therm.Exp(900℃)%

Common Type Alkali Resistant Bricks

RK-O

25-30

60-70

25

25

1350

10

1.3

0.7

High Strength Type Alkali Resistant Bricks

RK-H

25-30

60-70

20

60

1300

5

1.4


Arch Type Alkali Resistant Bricks

RK-A

30-35

60-65

25

30

1400

10

1.3


Insulation Type Alkali Resistant Bricks

CB-20

25-30

60-67

≥30

15

1250

5

0.75

0.6

CB-39

25-30

60-67

≥30

20

1250


0.75