High Alumina Castable Steel Fiber Refractory Castable
♦ Refractory Castable Manufature
♦ High refractoriness, High refractoriness under load.
♦ High density, low porosity.
♦ Good slag resistance and corrosion resistance.
♦ High strength and wear resistance.
♦ Good resistance to flake performance.
♦ Good thermal shock stability.
♦ Scouring resistance
♦ Good hot strength.
- Steel fiber resistant castable is a kind of super refractory products which is made of high level of bauxite as aggregate, high level high quality bauxite clinker and alumina powder as the matrix, pure calcium aluminate cement as binder, ultrafine powder as additive, add the prescribed number of heat resistant stainless steel fiber. Because of its high strength and integrity, it has been widely used in electric power industry. In the fluidized bed boiler is mainly used in the separator straight segment, inlet and outlet of the separator, cone separator, etc.
Refractory Castable Application:
♦ Furnaces of metallurgy industry, heat treatment furnace.
♦ Furnace of incineration of garbage, recirculating fluidized bed furnace.
♦ Furnaces of chemical industry and construction industry.
Specifications Of Steel Fiber Refractory Castable：
| Items | RSNM-1 | RSNM-2 | RSNM-3 | |
| Chemical Composition(%) | Al2O3 | 70 | 75 | 85 |
| SiO2 | 20 | 15 | 10 | |
| Bulk Density(g/cm3) | 110°C | 2.75 | 2.85 | 2.95 |
| 815°C | 2.75 | 2.85 | 3 | |
| 1100°C | 2.8 | 2.9 | 3.1 | |
| Cold CrushingStrength(MPa) | 110°C≥ | 60 | 120 | 130 |
| 815°C≥ | 65 | 125 | 135 | |
| 1100°C≥ | 70 | 130 | 140 | |
| MOR (MPa) | 110°C≥ | 8 | 12 | 13 |
| 815°C≥ | 9 | 13 | 14 | |
| 1100°C≥ | 12 | 13.5 | 15 | |
| Thermal Shock Resistance, Times, [900°C, water-cooling] | 20 | 22 | 28 | |
| Application | Furnace, cyclone cylinder, return feeder, top of mixing chamber | |||
