GENERAL INFORMATION:
Fireclay bricks are made from clinker clay by mixing, forming, drying, sintering and machining. The Al2O3 content ranges from 36% to 42%.
Fireclay bricks feature stable mechanical strength and good thermal shock resistance, withstanding high temperature up to 1750.
They are commonly applied as refractory lining directly exposed to heat or backup insulation layer in all kinds of industrial kiln or laboratory furnace.
ADVANTAGES:
Low thermal conductivity
High refractoriness
High mechanical strength
Excellent thermal shock resistance
Non standard sizes and shapes are available upon request
APPLICATIONS:
Petrochemical process heater
Heat treatment furnace
Ceramic firing kiln
Cement rotary kiln
Glass melting tank
Backup insulation
TECHNICAL DATA:
| ITEM: | ZGN42 GN42 RN42 RN40 RN36 |
| Al2O3 ≥ %: | 42 42 42 40 36 |
Fe2O3 ≤ %: | 1.6 1.7 - - - |
| C. C. S. Mpa≥ : | 58.8 49 29.4 24.5 19.6 |
| Refractoriness≥ º C: | 1750 1750 1750 1730 1690 |
| Permanent Linear Change ≤ % | 1350º C x 2hrs: - - - 0~-0.3 0~-0.5 |
| Permanent Linear Change ≤ % | 1450º C x 3hrs: 0~-0.2 0~-0.3 0~-0.4(x 2hrs) - - |
| Refractoriness under Load(0.2 Mpa)≥ : | 1450 1430 1400 1350 1300 |
| Apparent Porosity ≤ %: | 15 16 24 24 26 |
Note:
1) ZGN42 and GN42 are used in blast furnace.
2) RN42, RN 40 and RN 36 are used in hot blast stove.
3) Fireclay bricks can be designed and manufactured upon customers requirements.
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.
