Featured with uniform structure, high crushing strength, low thermal conductivity, good high-temp. volume stability, high alumina insulating bricks are ideal products for application of service temp. below 1400°C, and widely used as inner lining or insulating layer in metallurgy, ceramic, petrochemical and machinery industries.
The following are technical specifications:
| Brand |
PLG-1.3 |
PLG-1.0 |
PLG-0.9 |
PLG-0.8 |
PLG-0.7 |
PLG-0.6 |
PLG-0.5 |
Bulk density,
(g/cm3)≤ |
1.3 |
1.0 |
0.9 |
0.8 |
0.7 |
0.6 |
0.5 |
Cold crushing strength,
(MPa)≥ |
7.5 |
4.5 |
4.0 |
3.5 |
2.5 |
2.0 |
1.5 |
Linear change on heating, ≤2%
(°C×h) |
1400×12 |
1400×12 |
1400×12 |
1400×12 |
1350×12 |
1300×12 |
1250×12 |
Thermal conductivity,(W/m.k)
≤ [350±25°C] |
0.38 |
0.35 |
0.32 |
0.28 |
0.25 |
0.22 |
0.19 |
| Al2O3(%)≥ |
48.0 |
| Fe 2O3(%)≤ |
1.5 |
