alumina carbon bricks for iron &steel high temp. facilities
alumina carbon bricks are manufactured in our group company under the name of Zhengzhou Dongfang Industrial Group. for more information about our group company, please visit www.zzeast.com
1. physical and chemical properties:
items | alumina carbon brick | ||
TKL-1 | TKL-2 | ||
Al2O3 % min. | 58 | 55 | |
SiC % min. | 5 | 4 | |
C % min. | 14 | 12 | |
Fe2O3 % max. | - |
| |
Refractoriness °C min. | - |
| |
A.P. % max. | 13 | 15 | |
R.U.L. 0.2MPa °C min. | 1630 | 1600 | |
C.C.S. Mpa min. | 30 | 25 | |
Reheating linear change % | 1450°C×2h |
|
|
1500°C×2h |
| ||
MOR Mpa min. | 12 | 9 | |
BD % min. | 2.5 | 2.5 | |
average thermal expansion (1000°C) | 2.4×10-6 | 2.4×10-6 | |
2. high strength and RUL
3. Low linear chagne value
