High Alumina Refractories Brick For Hot-blast Stove
High alumina brick refers to fire brick containing Al2O3 more than 48%, which is made of high
grade bauxite through high temperature calcinations. High alumina brick is a kind of neutral
refractory material so that it enjoys excellent resistance to acid and alkali corrosion. It has
characteristic of high refractoriness under load, which decide high alumina brick is an ideal
material for various kinds of industrial furnace. It is widely used in building lining of hot-blast stove,
blast furnace, coke oven, rotary kilns of cement and so on.
High alumina brick specification
Brand | SK-34 | SK-36 | HA-60 | HA-70 | HA-75 |
Al2O3(%) | >42 | >50 | >60 | >70 | >80 |
Fe2o3(%) | <2 | <2 | <2 | <2 | <2 |
Refractoriness | 1750 | 1750 | 1770 | 1790 | 1790 |
refractoriness under load 0.2mpa(C) | 1450 | 1450 | 1450 | 1510 | 1530 |
Porosity(%) | 19-23 | 19-23 | 19-23 | 19-23 | 19-23 |
Bulk density(g/cm3) | >2.2 | >2.3 | >2.35 | >2.4 | >2.4 |
Cold cushing strength (mpa) | >30 | >40 | >45 | >50 | >60 |
Thermal expansion at 1000C(%) | <0.6 | <0.6 | <0.6 | <0.6 | <0.6 |
Characteristices of high alumina brick
1.High intensity for pressure
2. Good thermal shock stability
3. Strong abrasion and corrosion resistance
4. High cold crushing strength
5. Excellent abrasion resistance at cold and hot conditions
Advantages of high alumina brick
1 Excellent thermal stability
2 High refractoriness under load
3 Chemical stability and anti-corrision
4 Small high temperature creep rate
5 Excellent thermal shock resistance
High alumina brick application
High alumina brick is widely used in building lining of hot-blast stove, blast furnace, coke oven, rotary kilns of cement
and so on.
High alumina brick Products
High alumina brick Packages
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