
High Alumina Low Cement Castable
Other name: Low Cement Refractory Castable
Model Number: HCR 16T, HCR 16, HCR 160, HCR 15B
Certification: ISO 9001-14001
Minimum Order Quantity: 5 MT
High alumina low cement castable
Introduction:
High alumina low cement castable is a type of refractory castable, and it is a monolithic refractories. That means, the calcium aluminate cement is added in an amount of about one-half or one-third of the castable of the ordinary cement castable. The application of low-cement refractory castable is becoming increasingly widespread.
Advantages:
Compared with general high alumina castables, the high alumina low-cement castables use ultra-fine micro-powder to reduce the amount of cement and greatly improve the strength and erosion of low-cement castables. Increased bulk density, reduced porosity and increased service life.
High alumina low cement castable phycial and chemical
| Item | HCR-16T | HCR-16 | HCR-160 | HCR-15B | |
| Al2O3 % | 75 | 70 | 75 | 70 | |
| Bulk Density kg/m³ ≥ | 2650 | 2600 | 2700 | 2600 | |
| C.C.S. Mpa ≥ | 110℃ ×24h | 100 | 100 | 100 | 80 |
| 1100℃ ×3h | 110 | 100 | 110 | 100 | |
| 1500℃ ×3h | 110 | - | 150 | - | |
| M.O.R. Mpa ≥ | 110℃ ×24h | 10 | 8 | 14 | 10 |
| 1100℃ ×3h | 12 | 10 | 15 | 12 | |
| 1500℃ ×3h | 12 | - | 15 | - | |
| Permanent Linear Change % | 1100℃ ×3h | ±0.3 | ±0.4 | ±0.4 | ±0.4 |
| 1300℃ ×3h | - | ±0.5 | - | ±0.5 | |
| 1500℃ ×3h | ±0.5 | - | ±0.5 | - | |
| Max. service temperature ℃ | 1600 | 1600 | 1600 | 1500 | |
| Water Addition % | 5.5~6.5 | 6.0~7.5 | 5.5~6.0 | 5.5~6.5 | |
| Alkali Resistance | - | Grade II | - | Grade II | |
| Application | Kiln hood, cooler, etc. | Outlet, burner, kiln hood, cooler, etc. | Kiln hood, cooler, etc. | ||