High Alumina Bricks

►Description:
High alumina bricks is made of high-quality bauxite clicker as starting material by sgaping at high pressure and sintering at high temperature.

►Applications:
High alumina bricks are mainly used in furnace for glass,each position of linings of blast furnace.

►The main applications are:
1. Hot-blast stove;
2. Blast furnace;
3. Glass furnace;

►Specifications:
1. High temperture resistant;
2. Chemical erosion resistant;
3. thermal stability;
4. slag resistance;

► Advantages:
1. Corrosion-resistant;
2. Various shapes
3. High quality;

► Physical and chemical index :

 

Item	Index
International Code Name	SK35	SK36	SK37	SK38	SK40
Chinese Code Name	LZ-48	LZ-55	LZ-65	LZ-75	LZ-80
Al2O3 ,%	≥48	≥55	≥65	≥75	≥80
Fe2O3, %	≤2	≤2	≤2	≤2	≤2
Refractoriness℃, min	1750	1770	1790	1790	1790
Apparent Porosity％	≤22	≤22	≤23	≤23	≤21
Bulk Density g/cm3	2.25-2.35	2.25-2.35	2.25-2.35	2.25-2.35	2.25-2.35
Cold Crushing Strength Mpa	≥39	≥44	≥49	≥54	≥65
0.2Mpa Refractoriness Under Load T0.2 ℃,min	≥1420	≥1470	≥1500	≥1520	≥1530
Permanent Linear Change On Reheating （%）1500℃X2h	+0.1~-0.4 x1450℃	+0.1~-0.4	+0.1~-0.4	+0.1~-0.4	+0.1~-0.4

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