Common High Alumina Bricks Back

Common high alumina bricks
  • International Code Name : SK35
  • Chinese Code Name: LZ-48
  • Refractoriness℃, min : 1750
  • Apparent Porosity% : ≤22
  • Bulk Density g/cm3 : 2.25-2.35
  • Cold Crushing Strength Mpa: ≥39

Features

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;

Parameter

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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