High Alumina Bricks

High Alumina Bricks
High Alumina Bricks
High Alumina Bricks
High Alumina Bricks
Overview

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: ≥39 Mpa

Feature

Common high alumina bricks

Brand:LZ-75,LZ-65,LZ-55,LZ-48,LZ-80

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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