Fire Clay Refractory Castable Introduction
Fire Clay Refractory Castable for aggregate with bauxite and flint clay, silica powder, calcium aluminate cement, water reducing agent prepared general castable, choose corresponding grade aggregate, mixture volume density of 2.2 clay castable for customers to use. The product compact structure, high temperature performance is good, good thermal shock resistance and abrasion resistance, construction is convenient, suitable for all kinds of neutral industrial kiln lining.
Application of Fire Clay Refractory Castable
Fire Clay Refractory Castable is used in the lining of steel rolling heating furnace,heat treatment furnace,boiler,shaft kiln,preheating zone of rotary kiln
Fire Clay Refractory Castable Technique Data
| Index |
Fire clay |
High alumina 1 |
High alumina 2 |
| Al2O3 % |
40-45 |
60-65 |
70-75 |
| SiO2 % |
35-40 |
23-30 |
15-20 |
| CaO % |
5-6 |
5-6 |
5-6 |
| Bulk density g/cm3 |
110°C,24h |
2.0-2.1 |
2.4-2.5 |
2.7-2.8 |
| 1350°C,3h |
2.1-2.15 |
2.5-2.6 |
2.7-2.85 |
| Bending Strength MPa |
110°C,24h |
4.5-6 |
5-6 |
5.5-6 |
| 1350°C,3h |
6-7 |
6.5-7.5 |
7-8 |
| Compressive strength MPa |
110°C,24h |
30-35 |
40-45 |
45-50 |
| 1350°C,3h |
45-50 |
50-60 |
55-65 |
| 1350°C Reheating linear change % |
+(0.1-0.3) |
-(0.1-0.3) |
-(0.1-0.5) |
| water content to mixture % |
10-12 |
10-12 |
10-12 |
| Service temperature °C |
1350 |
1450 |
1550 |
