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Magnesia - Alumina Spinel Brick

Magnesium-aluminum spinel bricks are mainly composed of high-purity magnesia and synthetic magnesia-alumina spinel, and the main crystal phase is a periclase phase and amagnesia-alumina spinel phase.

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Magnesia - Alumina Spinel Brick

Description

Magnesium-aluminum spinel bricks are mainly composed of high-purity magnesia and synthetic magnesia-alumina spinel, and the main crystal phase is a periclase phase and amagnesia-alumina spinel phase.

 

Features

This product has the characteristics of high temperature performance, high thermal shock stability, strong resistance to alkaline substances, good wear resistance and good resistance to high temperature heat load.

 

Application

It is widely used in non-ferrous smelting, transition zone before and after cement kiln, high temperature zone of lime kiln, roof of glass regenerative furnace and reverberatory furnace.


Specification


Index75A
75B
80
85A
85B
93A
93B
95A
95B
MgO% ≥75
75
80
85
85
93
93
95
95
Al2O3 % ≥13
13
9
9
9
5
5
3
3
SiO2 % ≤0.8
1.2
1.5
0.8
2.5
1.0
2
1.0
2.5
AP% ≤17
17
17
16
17
16
17
16
17
B.D. (g/cm3) ≥2.95
2.952.95
2.952.952.952.952.952.95
CCS (Mpa)45
45454540
4540
4540
RUL (℃) Te1700
1700170017001700
1700170017001700

TSR1100℃

(Times) ≥

10
101012
1012
1012
10

Thermal conductivity1000℃

 (w/m.k)

2.85
2.80
2.9
3.0
2.9
3.0
3.03.03.0



 

 

 

 

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