low creeping high alumina bricks for metallurgical furnaces
low creeping high alumina brick 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 | low creeping high alumina brick | ||
DRL-135 | DRL-145 | DRL-150 | |
Al2O3 % min. | 70 | 75 | 80 |
Fe2O3 % max. | - | - | - |
Refractoriness °C Min. | 1790 | 1790 | 1790 |
A.P. % Min. | 20 | 20 | 19 |
R.U.L (0.2MPa) °C Min. | 1500 | 1550 | 1650 |
Reheating Linear Change % | 1450×2h +0.1~-0.3 | 1500×2h +0.1~-0.2 | 1500×2h +0.1~-0.1 |
C.C.S. Mpa Min. | 65 | 70 | 80 |
Creeping rate under high temperature % Max. | 0.6 1350×50h | 0.6 1450×50h | 0.7 1500×50h |
2. excellent anti-creeping performances
3. high strength and RUL
4. Low PLC value
