Steel fiber Reinforced Castable
Technical data sheet
|
Item |
Clay |
Alumina magnesia |
Bauxite-mullite |
Corundun |
||
|
Chemical Composition % |
Al2O3 |
65 |
90 |
74 |
68 |
84 |
|
MgO |
- |
4.4 |
- |
- |
- |
|
|
CaO |
1.4 |
3.2 |
1.5 |
1.2 |
2.0 |
|
|
Compressive strength MPa |
1d |
10 |
- |
15 |
14 |
- |
|
110°C |
14 |
69 |
40 |
49 |
83 |
|
|
1000°C |
40 |
- |
70 |
74 |
- |
|
|
1500°C |
43 |
91 |
76 |
80 |
150 |
|
|
Bending Strength MPa |
110°C |
6 |
11 |
5 |
6 |
- |
|
1000°C |
12 |
- |
11 |
12 |
19 |
|
|
1500°C |
13 |
21 |
13 |
13 |
23 |
|
|
High temperature bending strength MPa |
1500°C |
2.1 |
9.6 |
2.4 |
2.8 |
- |
|
Reheating linear change % |
1000°C |
-0.10 |
- |
+0.08 |
-0.02 |
±0.1 |
|
1500°C |
+0.22 |
+0.62 |
+0.30 |
+0.10 |
||
|
Refractoriness °C |
1770 |
1830 |
1790 |
1790 |
1790 |
|
|
Bulk density g/cm3 |
2.38 |
3.26 |
2.60 |
2.62 |
2.90 |
|
Feature
1.Low bulk density and low thermal conductivity,
2.High refractoriness under load
3.High mechanical strength,
4.Good thermal shock resistance,
5.Tiny linear variation,no cracking,
6.Resistant to scour and erosion,abrasion,
7.Good volume stability under high temperature,
8.Easy to operate: times and labor saving.
Application
Steel fiber reinforced refractory castable is mainly used in heat treatment furnace,heating furnace,soaking pit furnace,tundish slag dam weir,seconclary refining and the catalytic cracking unit etc key part of kiln furnace and thermal equipment.
