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High Alumina Bricks
High Alumina Bricks
High Alumina Bricks
High Alumina Bricks
  • International Code Name : SK35
  • Chinese Code Name: LZ-48
  • Refractoriness℃, min : 1750
  • Apparent Porosity: ≤22%
  • Bulk Density: 2.25-2.35 g/cm3
  • 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


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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