Loading Port:Shanghai
Payment Terms:TT or LC
Min Order Qty:1000 pc
Supply Capability:100000000 pc/month
General information of Insulating Brick
Insulating firebricks are classified under tempera-ture between 1100C to 1700C, manufactured from high purity alumina clay.
Insulating fire bricks are made from high purity alumina and low iron content raw materials. The insulating fire bricks are produced by mixing, casting or extruding, drying, sintering and grinding. Our insulating fire bricks GJM23 temperature is 1260℃(2300℉). A variety of type could be done according to customer’s request.
To make our firebricks more energy and cost effective, we have different manufacturing methods for our insulating fire bricks casting and extruding method.
For insulating fire bricks GJM23,we choose the casting methord.The casting insulating fire bricks offering the lowest density, the lowest thermal conductivity for the application above 1000℃.
Application of Insulation brick
Insulating firebricks can be used as a hot face lining directly exposed to the heat or as a backup insulation layerin iron and steel mills, non-ferrous foundries, petrochemical, ceramic, glass.
Features of Insulation brick
◆Light weight and low thermal conductivity
◆Low heat storage
◆Low iron and impurities
◆High thermal shock resistance
Technical Data of GJM series Insulation brick
| JM23 | JM26 | JM28 | JM30 | JM32 | ||||
| Physical Properties: | ||||||||
| Classifiction Temperature | ℃ | 1260.0 | 1430.0 | 1500.0 | 1600.0 | 1650 | ||
| Density | Kg/m3 | 550.0 | 850.0 | 900.0 | 1000.0 | 1100 | ||
| Cold Crushing Strength | Mpa | 1.2 | 2.0 | 2.5 | 2.8 | 3.5 | ||
| Reheating Linear Change(24hrs) | ||||||||
| 1230℃ | % | 0.4 | ||||||
| 1300℃ | ||||||||
| 1400℃ | % | 0.5 | ||||||
| 1510℃ | % | 0.6 | ||||||
| 1600℃ | % | 0.7 | ||||||
| 1650℃ | % | 0.8 | ||||||
| Hot Load Strength Deform(90 minutes) | ||||||||
| 1100℃ at 0.034 Mpa（5psi） | % | 0.1 | ||||||
| 1260℃ at 0.069 Mpa（10psi） | % | 0.2 | ||||||
| 1320℃ at 0.069 Mpa（10psi） | % | 0.3 | ||||||
| 1370℃ at 0.069 Mpa（10psi） | % | 0.2 | 0.1 | |||||
| Thermal Conductivity | ||||||||
| 400℃ | W/m.k | 0.2 | 0.3 | 0.3 | 0.3 | 0.32 | ||
| 600℃ | W/m.k | 0.2 | 0.3 | 0.3 | 0.3 | 0.35 | ||
| 800℃ | W/m.k | 0.2 | 0.3 | 0.4 | 0.4 | 0.38 | ||
| 1000℃ | W/m.k | 0.2 | 0.3 | 0.4 | 0.4 | 0.42 | ||
| 1200℃ | W/m.k | 0.4 | 0.4 | 0.4 | 0.44 | |||
| 1400℃ | W/m.k | |||||||
| Specific Heat | KJ/Kg.K | 1.1 | 1.1 | 1.1 | 1.1 | 1.10 | ||
| Chemical Analysis: | ||||||||
| Al2O3 | % | 47.0 | 50.0 | 60.0 | 70.0 | 75.0 | ||
| SiO2 | % | 44.4 | 47.1 | 38.2 | 28.3 | 23.2 | ||
| Fe2O3 | % | 0.9 | 0.7 | 0.6 | 0.5 | 0.5 | ||
| TiO2 | % | 1.2 | 0.1 | 0.1 | 0.1 | 0.1 | ||
| CaO | % | 5.2 | 0.1 | 0.1 | 0.1 | 0.1 | ||
| MgO | % | 0.3 | 0.2 | 0.1 | 0.1 | 0.1 | ||
| Na2O+K2O | % | 1.1 | 1.7 | 0.8 | 0.7 | 0.6 | ||
Technical Data of B series Insulation Brick
| B-1 | B-2 | B-3 | B-4 | B-5 | B-6 | B-7 | ||||
| Physical Properties: | ||||||||||
| Density | g/cm3 | 0.7 | 0.7 | 0.75 | 0.80 | 0.80 | 0.90 | 1.00 | ||
| Cold Crushing Strength | Mpa | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 3.0 | 3.0 | ||
| Thermal Conductivity 350℃ | W/m.k | 0.17 | 0.18 | 0.20 | 0.22 | 0.23 | 0.27 | 0.31 | ||
Technical Data of C series Insulation Brick
| C-1 | C-2 | C-3 | ||||
| Physical Properties: | ||||||
| Density | g/cm3 | 1.1 | 1.2 | 1.3 | ||
| Cold Crushing Strength | Mpa | 5.0 | 7.0 | 10.0 | ||
| Thermal Conductivity 350℃ | W/m.k | 0.30 | 0.38 | 0.45 | ||
Photo of Insulation Brick
