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High Alumina Firebricks

High alumina refractory bricks have the characteristics of high compressive strength, corrosion resistance, penetration resistance, and high load softening initiation temperature. Widely used in the process of high temperature and high pressure industrial production.
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Brief introduction and Application:

High alumina brick is a neutral refractory material. It has certain corrosion resistance to acidic and alkalinity, has high compressive strength, erosion resistance, strong permeability resistance and high load softening starting temperature. It is widely used for iron and steel making industry, nonferrous Metal industry, building materials industry, energy and incineration industry, etc.


Technical data:

Items

High alumina firebricks

Al2O3%

≥75

≥65

≥55

Fe2O3%

≤2

≤2

≤2

Refractoriness ℃

≥1790

≥1790

≥1770

0.2Mpa Refractoriness under load ℃

≥1520

≥1460

≥1400

Reheat Linear Change  %

1500℃ x 2h

-0.4~0.1

-0.4~0.1

-0.4~0.1

1400℃ x 2h

-

-

-

1350℃ x 2h

-

-

-

Apparent Porosity %

≤23

≤23

≤22

Cold Crushing Strength ( Mpa )

≥53.9

≥49.0

≥44.1

High alumina firebricks from Gaoteng High alumina firebricks from Gaoteng


Advantages:

  • High-grade refractory materials:

Higher refractoriness than clay bricks and semi-silica bricks, up to 1790℃.

  • Refractoriness under load:

Due to its high Al2O3 content with low impurity content, and a low formation of the molten glass body, the fire-resistant softening temperature is higher than refractory clay brick. 

  • Slag resistance:

High alumina brick is close to neutral refractory material, can resist the erosion of acid slag and alkali slag.


Packing and delivery details:

Packing information

Type

pallet

Pallet size

1m x 1m x 0.1m

Weight

1000-1300kg per pallet

25-27 tons load in 1X 20'FCL

Usually within three weeks after confirm the order.


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