Rongsheng High Alumina Fire Bricks Manufacturer

High alumina bricks are made of high-quality bauxite clicker as starting material by shaping at high pressure and sintering at high temperature.

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

Applications: High alumina bricks are mainly used in furnaces 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-temperature resistance; 2, Chemical erosion resistance; 3, thermal stability; 4, slag resistance

Technical Data & 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