product

Fire Clay Insulation Brick

  • Item : Fire Clay Insulation Brick
  • Classification Temperature (℃) : 1150
  • Bulk Density (g/cm3) : 0.55
  • Cold Crushing Strength (Mpa) : 1.5
  • Apparent Porosity (%) : 80
  • Reheating Linear Change (%) CT-30 ℃X 8H : 1250℃ -0.5
Send Email Live Chat Download
■ Feature

Description
Fire clay insulation brick is made of local top grade fireclay materials under the high temperature according to the lasted national standard, which possesses even bulk density, high strength, low thermal conductivity and low impurity. 
 

Application
Fire clay insulation brick mainly used for the insulating lining of hot surfaces or backing heat-insulating layers of other refractory materials. The refractory linings or heat-insulating materials of the industries, such as, ethylene pyrolysis furnaces, tubular furnaces, reforming furnaces of synthetic ammonia, gas generators and high-temperature shullte kilns,etc.

■ Technical Data
 
Sunrise Brand NG-0.5 NG-0. 6 NG-0. 8 NG-1.0 NG-1.3 NG-1.5
USA Brand ISO125-0.5 ISO125-0.6 ISO135-0.8 ISO135-1.0 ISO140-1.2 ISO140-1.5
Max Service Temperature (℃) 1150 1200 1280 1300 1350 1400
Bulk Density (g/cm3) 0.55 0.6 0.8 1.0 1.3 1.5
Apparent Porosity (%) 80 70 60 55 50 40
Cold Crushing Strength (Mpa) ≥ 1.5 2.0 2.5 3.0 4.0 6.0
Reheating Linear Change (%) ℃X 12H ≤ 1250℃ -0.5 1300℃ -0.5 1350℃ -0.5 1350℃ -0.9 1350℃ -0.9 1350℃ -0.9
Thermal conductivity (W/m.k) 400℃ 0.14 0.25 0.35 0.41 0.51 0.6
600℃ 0.16 0.29 0.45 0.43 0.61 0.71
800℃ 0.18 0.31 0.50 0.44 0.67 0.77
1000℃ 0.20 0.33 0.60 0.45 0.8 0.9
Al2O3 (%) 37 40 40 40 40 42
Fe2O3 (%) 1.0 1.5 1.5 1.5 2 2
SiO2 (%) 44 55 55 55 55 55