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Help CenterHigh Strength for Furnace Used Refractory Brick
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High strength for furnace used refractory brick
The used refractory brick is dense shaped refractory material. With high refractoriness and mechanical behavior under high temperature, used refractory brick is the necessary material of high-temperature services, mainly used for industrial furnaces and kilns and thermal equipment.
The used refractory brick has wide applications, mainly used in metallurgy, construction(cement and glass), petroleum, chemical industry, electric power and machine building.
Linquan series alumina bricks are high quality dry pressed alumina bricks, ranging from 35% to 95% in alumina content.
Fire clay bricks
Chemical and Physical Properties |
LQHAB70 |
LQHAB 60 |
LQHAB 50 |
LQHAB 80 |
|
Chemical |
Al2O3; ≥ |
70 |
60 |
50 |
80 |
Fe2O3; ≤ |
2.0 |
2.0 |
2.0 |
2.0 |
|
Refractoriness (SK); ≥ |
38 |
37 |
36 |
39 |
|
Bulk Density; ≥ |
2.30 |
2.20 |
2.10 |
2.40 |
|
Apparent Porosity (%); ≤ |
23 |
23 |
23 |
23 |
|
Cold Crushing Strength |
400 |
400 |
300 |
400 |
|
(Kg/cm2); ≥ | |||||
Thermal Expansion (%) |
0.65 |
0.60 |
0.53 |
800 0.65 |
|
at 1000°C | |||||
Permanent Linear Change (%) |
0.3 |
0.3 |
0.3 |
0.2 |
|
at 1500°C × 2Hrs | |||||
Refractoriness under Load |
1580 |
1500 |
1470 |
1670 |
|
High alumina bricks
Chemical and Physical Properties |
LQH-90 |
LQH 85 |
LQH-80 |
|
Chemical |
Al2O3; ≥ |
90 |
85 |
80 |
Fe2O3; ≤ |
1.0 |
1.0 |
1.0 |
|
Refractoriness (SK); ≥ |
40 |
40 |
39 |
|
Bulk Density; ≥ |
3.10 |
2.90 |
2.80 |
|
Apparent Porosity (%);≤ |
18 |
20 |
20 |
|
Cold Crushing Strength |
700 |
600 |
600 |
|
(Kg/cm2); ≥ | ||||
Thermal Expansion (%) |
0.70 |
0.68 |
0.65 |
|
at 1000°C | ||||
Permanent Linear Change (%) |
0 |
0 |
0.2 |
|
at 1500°C × 2Hrs | ||||
Refractoriness under Load |
1,700 |
1,700 |
1,670 |
|
The used refractory brick is made from bauxite of super quality, bonding chamotte and additives. The advantages of these products are high refractoriness, anti alkaline/acid erosions, good strength under high temperature and good thermal shock resistance.They were widely accepted in thermal equipment of metallurgy, petroleum, chemical industry, construction materials, machinery and militaries, etc.
Jinan Linquan Industry and Trade Co., Ltd
Linquan Trade, Serve World
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