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Mullite Refractory Bricks

Supplier From Turkey
Jan-27-09

Descriptions:
Mullite bricks have the properties of high purity, good mechanical strength, high refractoriness under load and low thermal conductivity. Mullite bricks are the best suited for reducing atmospheres and have resistance to slag and alkali attack. It has superior resistance to abrasion and thermal shocks. The effect on energy saving is significant.

Applications:
It is the ideal to be used as both insulating linings and working linings of high temperature kilns like glass tank furnace, kiln furnitures for firing ferrites, high alumina ceramics, carbon black reactor, cement kiln, burner blocks.


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Mullite Brick is a refractory material characterized by excellent performance (especially high temperature creep performance), is made from pure mullite and also alumina powder is added according to different types, finally sintered at high temperature.
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Dear Customers,

We can supply used/rejected Refractory in Bulk

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Oct-10-16
Supplier From Yangquan, Shanxi, China
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Mullite bricks refer to high-alumina refractories with mullite as the main crystalline phase, and the general alumina content is between 65% ~ 75%. It is mainly used for hot blast furnace top, blast furnace body and bottom, glass melting furnace regenerator, ceramic sintering kiln, petroleum cracking system dead angle furnace lining, etc.
Mullite bricks have high refractoriness, up to more than 1790 C, and have good thermal shock resistance. There are two types: sintered mullite bricks and fused mullite bricks. The crystallization of fused mullite is larger than that of sintered mullite, and the thermal shock resistance is better than that of sintered products.
Aluminum content: 65-90%
Standard brick size: 230*115*65mm
Compressive strength at room temperature: 100-120MPa
Good thermal shock resistance:
Jan-12-17
Supplier From Zhengzhou, Henan Province, China
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High Alumina Insulating Brick

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MOQ: Not Specified
Supplier From Zhengzhou, Henan Province, China
 
It is produced by foam coagulation technique.

Features:
1. It has advantages with small bulk density, high cold crushing strength, and high refractoriness under load, small dimension tolerance and good thermal shock resistance.
2. It has the lowest and most stable thermal conductivity in various insulating refractory bricks.
3. It can reduce the total weight of furnace body and the thickness of furnace wall effectively, improve heat efficiency, lower energy consumption, improve work conditions and production efficiency, and considerable economic benefit can be obtained.

Application:
It is not only widely used in insulating layers of various of thermal processing equipments, such as hot blast furnace, coke oven, glass kiln, etc, but also apply to linings in parts of furnace without strong high-temperature molten material erosive.

Item High Alumina Insulating
LG-1.0 LG-0.9 LG-0.8 LG-0.7 LG-0.6 LG-0.5 LG-0.4
Al2O3 % 48
Fe2O3 % 2.0
Bulk Density g/cm3 1.0 0.9 0.8 0.7 0.6 0.5 0.4
Cold Crushing Strength Mpa 3.92 3.43 2.94 2.45 1.96 1.47 0.78
Thermal Conductivity Coefficient w/m.k 0.45 0.45 0.35 0.35 0.3 0.25 0.20
Test Temperature of Permanent Linear Change Rate 2% C 1400 1400 1400 1350 1350 1250 1250
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