The Fireclay bricks with many varieties and specifications, mainly are three low fireclay bricks (DDD), low porosity fireclay bricks (DN-14, DN-17) and other professional application fireclay bricks (ZN-45, ZN-40, ZN-36), can be widely used in glass furnaces, blast furnaces, hot blast furnaces, cement furnaces, chemical furnaces and other thermal equipment.
Technical Data Sheet:
| Index / Product |
Unit |
Three low Fireclay Bricks |
Lower porosity Fireclay Bricks |
Fireclay Bricks |
Spalling resistance Fireclay Bricks |
|
|
DDD |
DN-12 |
DN-15 |
ZN-45 |
ZN-40 |
ZN-36 |
KN |
| Al2O3≧ |
% |
46 |
45 |
42 |
45 |
40 |
36 |
42 |
| Fe2O3≧ |
% |
1.0 |
1.3 |
1.8 |
- |
- |
- |
1.6 |
| Apparent Porosity≦ |
% |
11 |
14 |
17 |
16 |
19 |
22 |
18 |
| Bulk Density≧ |
g/cm3 |
2.4 |
2.34 |
2.26 |
2.30 |
2.20 |
2.10 |
2.30 |
| Cold Crushing Strength≧ |
Mpa |
80 |
65 |
50 |
50 |
35 |
30 |
50 |
| Reheating Linear Change( 1400℃*2h) |
% |
±0.1 |
+0.1
-0.2 |
+0.1
-0.2 |
+0.1
-0.2 |
+0.1
-0.3 |
+0.1
-0.4 |
±0.2 |
| Refractories under load ( 0.2Mpa)≧ |
℃ |
1520 |
1470 |
1430 |
1430 |
1380 |
1350 |
1450 |
| Creep rate(1200℃*50h, 0.2Mpa) ≦ |
% |
0.1 |
- |
- |
- |
- |
- |
=A12:N40 |
Note: All chemical-physical data are obtained based on the corresponding refractory bricks of standard size.
