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No.92 Jianshe West Road, Zhongyuan District, Zhengzhou, Henan,China.
albert@literefractory.com
+8619937887923

$Refractory High Alumina Brick$ video

$Refractory High Alumina Brick$
$Refractory High Alumina Brick$
$Refractory High Alumina Brick$
$Refractory High Alumina Brick$
$Refractory High Alumina Brick$

Refractory High Alumina Brick

The models of high alumina bricks we produce include 55 high alumina bricks, 60 high alumina bricks, 65 high alumina bricks, 70 high alumina bricks and 75 high alumina bricks, and other special-shaped bricks can be customized.

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Description

1.refractory high alumina bricks describe

The production process of high-alumina bricks and multi-clinker clay bricks is similar. The difference is that the proportion of clinker in the ingredients is higher, which can be as high as 90-95%. Higher, generally 1500 ~ 1600 ℃ when fired in a tunnel kiln.

2.refractory high alumina bricks Features

（1）Refractoriness：The refractoriness of high-alumina bricks is higher than that of clay bricks and semi-silica bricks, reaching 1750~1790℃, which belongs to advanced refractory materials.

（2）Load softening temperature：Because of the high Al2O3 in high alumina products, less impurities and less fusible glass body, the softening temperature under load is higher than that of clay bricks. Brick height.

（3）Slag resistance：There are more Al2O3 in high alumina bricks, which are close to neutral refractory materials, and can resist the erosion of acid slag and alkaline slag. Because it contains SiO2, the ability to resist alkaline slag is weaker than that of acid slag.

3. refractory high alumina brick

Product name	high alumina brick
Al2O3/%	≥48	≥55	≥65	≥75	≥80
Fe2O3/%	≤2	≤2	≤2	≤2	≤2
Refractoriness	≥1750 °C	≥1770 °C	≥1790 °C	≥1790 °C	≥1790 °C
Apparent porosity	≤22%	≤22%	≤23%	≤23%	≤21%
Cold crushing strength	≥39Mpa	≥44Mpa	≥49Mpa	≥54Mpa	≥65Mpa
Refractoriness under load (0.2MPa)	≥1420 °C	≥1470°C	≥1500 °C	≥1520 °C	≥1530 °C
Reheating Linear Change (1500°C 2h) %	+0.1~ -0.4 *1450°C	+0.1~ -0.4	+0.1~ -0.4	+0.1~ -0.4	+0.1~ -0.4
Packing	1.Wooden packing 2.Customized packaging according to customer requirements

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