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mullite insulating brick

Mullite brick IS characterized by good high temperature resistance and good thermal shock resistance, whick comes into being mullite through calcine with clay, high alumina materials and ceramics.

mullite insulating brick

Advantages: 1,High quality; 2,chemical corrosion- resistance

mullite insulating brick
  • Apparent Porosity :≤17 %
  • Bulk Density:≥2.55 g/cm3
  • Cold Crushing Strength:≥60 Mpa
  • 0.2Mpa Refractoriness Under Load T0.6 ℃ :≥1580
  • Permanent Linear Change On Reheating (%)1500℃X2h:0~+0.4
  • Thermal Shock Resistances 100℃ water cycles:≥18

The main applications are: 1,Sulfuric cracking furnace 2,Fibrous glass furnance.

mullite insulating brick

Specifications: 1,Low permanent linear change on reheating; 2,Good Thermal Shock Stability; 3,High dense structure

Technical Data & Physical and chemical index :

Item MU 60 MU 65 MU 70 MU 75
Chemical composition Al2O3 ≥60 ≥65 ≥70 ≥75
SiO2 ≤35 ≤33 ≤26 ≤24
Fe2O3 ≤1.0 ≤1.0 ≤0.6 ≤0.4
Apparent Porosity% ≤17 ≤17 ≤17 ≤18
Bulk Density g/cm3 ≥2.55 ≥2.55 ≥2.55 ≥2.55
Cold Crushing Strength Mpa ≥60 ≥60 ≥80 ≥80
0.2Mpa Refractoriness Under Load T0.6 ℃ ≥1580 ≥1600 ≥1600 ≥1650
Permanent Linear Change On Reheating (%)1500℃X2h 0~+0.4 0~+0.4 0~+0.4 0~+0.4
Thermal Shock Resistances 100℃ water cycles ≥18 ≥18 ≥18 ≥18
20-1000℃ Thermal Expansich10-6/℃ 0.6 0.6 0.6 0.55
Thermal Conductivity (W/MK) 1000℃ 1.74 1.84 1.95 1.95

Tags: mullite insulation brick, mullite insulating brick, mullite light weight insulation brick,

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