Complaint
High Alumina Castables
Item | GRHA75 | GRHA80 | GRHA85 | GRHA95 |
Service TempºC | 1600 | 1650 | 1700 | 1750 |
Bulk Density (g/cm3) (Dried at 110ºC) | 2.5 | 2.6 | 2.7 | 3.0 |
CCS 110ºC (Mpa) 1100ºC 1500ºC | 65 55 80 | 70 60 85 | 90 80 100 | 95 85 110 |
MOR 110ºC (Mpa) 1100ºC 1500ºC | 10 9 11 | 11 9 12 | 12 10 13 | 13 12 15 |
Max Grain Size (mm) | 6 | 6 | 6 | 6 |
Chemical Analysis(%) Al2O3 Fe2O3 |
75 2.5 |
80 2.0 |
85 1.8 |
95 1.2 |
Application Guidelines Mixer Placement Water/Mixer Temp ºC Mixing Time(Min): Dry/Wet |
P V 20±5 2/5 |
P V 20±5 2/5 |
P V 20±5 2/5 |
P V 20±5 2/5 |
Water % (Typical) | 7-9 | 7-9 | 6-8 | 6-7 |
High Alumina castables are mixed by high quality bauxite, mullite, andalusite or Corundum as aggregate, Silica Powder, α-alumina powder as micro powder, refractory cement as binder, also some additive to make better performance. Formulas are changed according to different applications.
Comparing to conventional dense castables, high alumina castables can be used in the area that have more higher temperature and also have higher cold crushing strength.
Greenergy Refractory &Insulation Material Co., Ltd
Your reliable partner for refractory materials.
As one of the leading company of refractory products in China, Greenergy Refractory& Insulation Material Co., Ltd enjoys close proximity to her customers, during long time in the market, we accumulate a lot of experiences in refractory materials for Steel plant, Boiler, Cement, Ceramics, Aluminum, Petrochemical and Metallurgy industries as well as other thermal treatment industries. We have a professional team for R&D, QOC, marketing and post services to our customers which in return help us gain plentiful of credit and reputation from the market.
We are committed to providing one-stop customized solution services from how-to-choose to final construction with varieties of refractory and insulation materials ranging from 500 ºC to 2000 ºC, including refractory ceramic fiber, bio soluble fiber, poly-crystalline fiber, insulating firebrick, refractory fire brick, monolithics and castables, microporous board, aerogel, calcium silicate boards and shapes, etc..
Our products have been highly praised by our customers from USA, UK, Italy, Germany, Turkey, India, UAE, Brazil, etc. We are striving to provide customers with comprehensive, one-stop and most suitable "energy saving" solutions to build a green-energy system.
