High alumina insulation brick
High alumina insulation brick, Small volume density, Low thermal conductivity, Excellent heat insulation....
Description
High alumina insulation brick
Item: |
LG-1.2 |
LG-1.0 |
LG-0.9 |
LG-0.8 |
LG-0.7 |
LG-0.6 |
LG-0.5 |
LG-0.4 |
Al2O3 % ≥ |
48 |
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Fe2O3 % ≤ |
2.0 |
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Bulk density g/cm3 ≤ |
1.2 |
1.0 |
0.9 |
0.8 |
0.7 |
0.6 |
0.5 |
0.4 |
Cold crushing strength Mpa ≥ |
4.5 |
4.0 |
3.5 |
3.0 |
2.5 |
2.0 |
1.5 |
0.8 |
Permanent linear change temp ≥,less than 2% |
1400 |
1400 |
1400 |
1400 |
1350 |
1350 |
1250 |
1250 |
Thermal conductivity W/m.k 350±25 |
≤0.55 |
≤0.50 |
≤0.45 |
≤0.35 |
≤0.35 |
≤0.30 |
≤0.25 |
≤0.20 |