High Al2O3 Brick
MOQ: 5 tons
Description
High Al2O3 Brick is incredibly tough, sturdy, long-lasting refractory fire brick, which is with aluminum oxide contained more than 55% ,higher than fireclay bricks. Refractories made of alumina are popular in the heat processing industry because of their great resistance to oxidizing and reducing environments.
Features
What are the properties of high alumina bricks?
Because of its neutral refractory property, High Al2O3 Brick can withstand acid slag erosion. Over 1770°C, High Alumina fire bricks have high thermal stability and refractoriness. At 1770°C and above, it has a high heat resistance and temperature resistance. High alumina brick is extensively used in heat processing industries.
Application
High Al2O3 Brick comes in a variety of grades and shapes to suit different applications, and they can be custom-designed to meet specific requirements. High alumina fire refractory rick that can be used to construct electric arc furnaces, glass kilns, cement rotary kilns, air furnaces, reverberatory furnaces, and rotary kiln linings. It can also be used as heat accumulating checker bricks, chock plugs for gating systems, nozzle bricks, and so on.
Physical And Chemical Indicators
|
Brand Properties |
SK-36 |
SK-37 |
SK-38 |
SK-40 |
|
|
Refractoriness (SK) |
36 |
37 |
38 |
40 |
|
|
Apparent Porosity (%) |
23 |
23 |
23 |
20 |
|
|
Bulk Density (g/cm3) |
2.30 |
2.35 |
2.40 |
2.65 |
|
|
Cold Crushing Strength (MPa) |
45 |
50 |
52 |
70 |
|
|
@ 1,000℃ Thermal Linear Expansion(%) |
0.6 |
0.6 |
0.6 |
0.6 |
|
|
@1,400℃x2hrs Permanent Linear Change (%) |
±0.3 |
±0.3 |
±0.3 |
±0.2 |
|
|
@0.2MPa Refractoriness Under Load (℃) |
1,420 |
1,450 |
1,500 |
1,550 |
|
|
Chemical Composition (%) |
Al2O3 |
50 |
60 |
72 |
80 |
|
Fe2O3 |
2.0 |
2.0 |
2.0 |
1.8 |
|
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