| Product |
BNC-55 |
ACF-50 |
HAS-51 |
HAS-50 |
CWK-36 |
| Chemical composition(%) |
| MgO |
84.2 |
84.2 |
86.6 |
87.0 |
0.7 |
| Al2O3 |
12.7 |
12.7 |
11.0 |
11.0 |
36.0 |
| SiO2 |
0.7 |
0.7 |
0.7 |
0.5 |
59.0 |
| Fe2O3 |
0.3 |
0.3 |
0.6 |
0.5 |
1.2 |
| CaO |
0.6 |
0.6 |
1.1 |
0.9 |
0.4 |
| Physical properties |
| Apparent porosity(%) |
16.8 |
17.0 |
17.4 |
17.3 |
17.2 |
| Bulk specific gravity |
2.93 |
2.92 |
2.88 |
2.89 |
2.22 |
| Apparent specific gravity |
3.52 |
3.52 |
3.49 |
3.49 |
2.68 |
| Compressive strength(MPa) |
46 |
49 |
50 |
46 |
48 |
Bending strength
at1500°C |
2.5 |
1.8 |
1.5 |
1.8 |
- |
Spalling resistance
1500°C/times |
>30 |
>30 |
>30 |
>30 |
- |
| Applications |
Burning zone and tire area |
Burning zone |
Upper transition zone and lower transition
zone |
Upper transition zone |
Calcining zone |
| Features |
Basic chrome free bricks |
Basic chrome free bricks |
Basic Magnesia -Almina -Spinel bricks |
Basic Magnesia -Almina -Spinel bricks |
High alumina bricks |
