Product Introduction
High-alumina castable is a refractory castable made of high-alumina raw materials as aggregates and powders, and added with binders. It has high mechanical strength and good thermal shock resistance, abrasion resistance and other properties.
Technical Data
| Item | Specification | ||||
| NM-1 | NM-2 | NM-3 | NM-4 | ||
| Al2O3 % | ≥70 | ≥75 | ≥80 | ≥85 | |
| Bulk Density, g/cm3 110℃×24h | ≥2.6 | ≥2.75 | ≥2.8 | ≥2.9 | |
| CCS,MPa | 110℃×24h | ≥60 | ≥65 | ≥70 | ≥75 |
| 1400℃×3h | ≥90 | ≥95 | ≥105 | ≥110 | |
| CMOR, MPa | 110℃×24h | ≥8.5 | ≥9 | ≥10 | ≥11 |
| 1400℃×3h | ≥13 | ≥14 | ≥15 | ≥16 | |
| Cold Wear Loss, cm3 | ＜9.6 | ＜8.5 | ＜7.3 | ＜6 | |
| 0.2MPa RUL,℃ | ＞1450 | ＞1490 | ＞1530 | ＞1560 | |
| TSR, Cycle 900℃ Water | ＞20 | ＞20 | ＞20 | ＞20 | |
| Max Working Temperature, ℃ | 1550 | 1550 | 1600 | 1600 | |
| PLC, % | ＜-0.3 | ＜-0.3 | ＜-0.2 | ＜-0.2 | |
Application Of High Alumina Castable
1. It can be cast directly on the industrial furnace to form an integral lining, or it can be premade into refractory prefabricated blocks and used in masonry in the industrial furnace.
2. It is suitable for heating furnaces, soaking furnaces, heat treatment furnaces, rotary kiln; various high-temperature burner linings, heating furnace pipe packing linings, steel furnace scouring device components and petrochemical catalytic cracking reactor High-temperature wear-resistant lining; blast furnace iron channel, iron furnace iron trough, hot metal pretreatment with the overall dust gun and other lining.