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Alumina brick

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Alumina brick

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Product Description:

The fireproof high aluminum ingot is the Al2O3 content is higher than 48% aluminum silicate nature neutral refractory, take selects the bauxite as the primary data, auxiliary has the high compressive strength and the refractoriness under load by the high quality bauxite as well as the good heat shock stability.

Mainly uses in the masonry and building blast furnace, the hot-blast stove, the electric stove furnace top, the rotary kiln inside lining. In addition, the high aluminum ingot also hot -like checker brick, the gating system use blind, the drainage opening brick and so on.

HA-80──Al2O3 content >80%;

HA-70──Al2O3 content >70%;

HA-60──Al2O3 the content is 60~65%;

HA-50──Al2O3 the content is 48~50%.

 

Technique parameter:

Item

HA-80

HA-70

HA-60

HA-50

Al2O3(%)

≥80

≥70

60~65%

48~50%

SIO2(%)

≤18

≤28

≤38

≤45

Fe2O3(%)

≤1.8

≤1.8

≤1.8

≤1.8

Refractoriness

1850

1810

1800

1790

refractoriness under load 0.2mpa(℃)

1520

1480

1450

1400

Porosity(%)

18-20

18-22

18-22

19-22

Bulk density(g/cm3)

≥2.45

≥2.40

≥2.35

≥2.30

Cold cushing strength (mpa)

≥60

50

45

40

 

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