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Specifications
High Alumina Bricks for Blast FurnacesRefractory Brick Manufacturer
Al2O3:48~85%,Fe2O3:1.8~2.5%
Common and irregular shape
The above picture shows refractory brick for blast furnace with Al2O3 65%.
Refractory brick is dense shaped refractory material. With high refractoriness and mechanical behavior under high temperature, refractory brick is the necessary material of high-temperature services, mainly used for industrial furnaces and kilns and thermal equipment.
Refractory brick for blast furnace is mainly used in stack, bosh, bellly and bottom of blast furnace.
Tech Data
Item |
Index |
||||
International code name |
SK35 |
SK36 |
SK37 |
SK38 |
SK40 |
Al2O3 % |
>48 |
>55 |
>65 |
>75 |
>80 |
Fe2O3 % |
<2 |
<2 |
<2 |
<2 |
<2 |
Refractoriness °C |
1750 |
1770 |
1790 |
1790 |
1790 |
|
Refractoriness under load (0.2MPa) °C, |
1420 |
1470 |
1500 |
1520 |
1530 |
|
Linear change on reheating (1500°C, 2h) % |
+0.1~ -0.4 |
+0.1~ -0.4 |
+0.1~-0.4 |
+0.1~ -0.4 |
+0.1~ -0.4 |
Apparent porosity max % |
22 |
22 |
23 |
23 |
21 |
Cold crushing strength Mpa, |
39 |
44 |
49 |
54 |
65 |
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