High Alumina Castable Introduction
High alumina castable, also named as high alumina refractory castable, appears to be like powder or sand. Basically a certain portion of binders is added into the raw material to make the castable. The product have a high fluidity, so they can be shaped into any forms through casting, and this is why it is called “castable”. High alumina refractory castable have the characteristics high desity, low porosity rate, good hot strength, high refractoriness and high refractoriness under load. It is strong in mechanical spalling resistance, shock resistance and corrosion resistance. This product is widely used in thermal equipments, heating furnace in metallurgical industry, boilers in electricity industry, and building material industry furnace.
High Alumina Castable Properties
High density
Low porosity rate
Good hot strength
High refractoriness
High refractoriness under load
Strong in mechanical spalling resistance
Good shock resistance
Good corrosion resistance
High Alumina Castable Physical & Chemical Index
| Items | RSGLJ-1 | RSGLJ-2 | |
| Al2O3 % | 65 | 75 | |
| Refractoriness °C | 1750 | 1770 | |
| Linear Dimensional Change % | -0.02 | -0.4 | |
| Cold Crushing Strength MPa ≥ | 110°C×24h | 50 | 60 |
| 1100°C×4h | 60 | 70 | |
| Breaking Strength MPa ≥ | 110°C×24h | 9 | 11 |
| 1100°C×4h | 10 | 12 | |
| Maximum Service Temperature °C | 1200 | 1400 | |
High Alumina Castable Application
Various thermal equipment
Heating furnaces in the metallurgical industry
Boilers in electricity industry
Building material industry furnace
High Alumina Castable Manufacturer
RS refractory manufacturer has produced various refractory castables materials for many years, and our high alumina castable have used for many furnace and get good feedback. If you have any purchase plan for your furnace project, welcome contact with us, we are pleasure to provide you with suitable refractory castalbes products and best service.
