GENERAL INFORMATION:
CMAX insulating firebricks are classified under temperature between 1300º C and 1700º C, manufactured from high purity alumina clay by mixing, press-forming, drying, sintering and machining. Bricks contain carefully-graded organic fillers which are burned out during sintering to give a uniform controllable pore structure. This technique makes product feature low thermal conductivity and excellent heat insulation
CMAX insulating firebrick can be used as a hot face lining directly exposed to the heat or as a backup insulation layer in iron and steel mills, non ferrous foundries, petrochemical, ceramic, glass, cement and oil fired electric power generating plants.
ADVANTAGES:
Light weight and low thermal conductivity allows thinner furnace walls
Maintain stable structural strength throughout ambient to maximum service temperature
Low heat storage results in rapid cooling and heating operation
Low iron and impurities to enhance reducing atmosphere
High thermal shock resistance in preventing spalling
Non standard sizes and shapes are available upon request
APPLICATIONS:
Ceramic shuttle kilns
Metal heat treatment furnaces Steel billet reheating furnaces Oil refinery heaters
Laboratory furnaces
| ATTACHED TECHNICALDATA |
|
| ITEM NAME | UNIT | GJM30 | GJM28 |
| Physical Properties: |
| Classification Temperature | F | 3000 | 2600 |
| Bulk Density | kg/cm³ | ≤ 1.0 | ≤ 0.8 |
| C. C. R. Strength | MPa | ≥ 3 | ≥ 2.5 |
| Reheating Linear Change | % | ≤ 0.9 (1550C, 12 h) | ≤ 0.8 (1510C, 12 h) |
| Chemical Analysis: |
| Al2O3 | % | ≥ 75 | ≥ 65 |
| Fe2O3 | % | ≤ 0.5 | ≤ 0.6 |
| Thermal Conductivity: |
| 800C | w/m? k | ≤ 0.39 | ≤ 0.37 |
| 1000C | w/m? k | ≤ 0.43 | ≤ 0.41 |
| 1200C | w/m? k | ≤ 0.48 | ≤ 0.46 |
| ITEM NAME | UNIT | GJM23 | GJM26 |
| Physical Properties: |
| Classification Temperature | F | 2300 | 2600 |
| Bulk Density | kg/cm³ | ≤ 0.52 | ≤ 0.9 |
| C. C. R. Strength | MPa | ≥ 1.2 | ≥ 1.8 |
| Reheating Linear Change | % | ≤ 0.5 (1550C, 12 h) | ≤ 0.7 (1410C, 12 h) |
| Chemical Analysis: |
| Al2O3 | % | ≥ 45 | ≥ 55 |
| Fe2O3 | % | ≤ 1.0 | ≤ 0.7 |
| Thermal Conductivity: |
| 800C | w/m? k | ≤ 0.18 | ≤ 0.35 |
| 1000C | w/m? k | ≤ 0.20 | ≤ 0.39 |
| 1200C | w/m? k | --- | ≤ 0.43 |
CNBM (China National Building Material) Group is the largest comprehensive building materials group in China that in intergrate scientific research, manufacturing and logistics into one entity. The largest building materials and equipment specialists in China. Upon State Council approval, today CNBM owned more than 300 subordinate manufacturing factories and servicing companies. There are 6 fully owned public listed companies and 11 partially owned with substantial shares public listed companies. In many of these fields, CNBM is playing the leading role in the building industry in the country.
CNBM International Corporation is the most import and export platform of CNBM group. With its advantages, CNBM International are mainly concentrate on Cement, Glass, Iron and Steel, Ceramics industries and devotes herself for supplying high quality series of refractories as well as technical consultancies and logistics solution.
CNBM International is highly recognized by its business partners and clients all over the world and has obtained rapid development under the spirit of win-win. Depending on the support of prodution divisions and its active staff, CNBM international reached a turnover of USD one billion in 2010. We will carry on the mutual beneficial, create value for our employees, share holders and clients and benefit the whole society in our future development.
