Item |
Properties |
|||||
LZ-80 |
LZ-75 |
LZ-65 |
LZ-55 |
LZ-48 |
||
Al2O3 ,% |
80 |
≥75 |
≥65 |
≥55 |
≥48 |
|
Refractoriness °C |
≥1790 |
≥1790 |
≥1790 |
≥1770 |
≥1750 |
|
Bulk density,g/cm3 |
2.65 |
2.5 |
2.45 |
2.4 |
2.3 |
|
Softening temperature under load |
1530 |
≥1520 |
≥1500 |
≥1470 |
≥1420 |
|
Permanent linear change,% |
1500°CX2H |
+0.1 |
+0.1 |
+0.1 |
+0.1 |
|
1450°CX2H |
|
|
|
|
+0.1 |
|
Apparent porosity,% |
22 |
≤23 |
≤23 |
≤22 |
≤22 |
|
Cold Crushing strength Mpa |
55 |
≥50 |
≥45 |
≥40 |
≥35 |
|
Application |
All industrial furnace |