Refractory brick,high alumina brick
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- Special featureRefractory
Detailed Product Description
High aluminum refractory brick belongs to gender refractory materials with its thermal stability.
Feature:
1.bricks are made from high quality bauxite
2.dry pressed
3.burned under tunnel kiln
4.accurate dimension
5.high strength
Product specification: Can be used in various kilns because of its cheapness and general tray package. Among all of the refractory materials, it is the mostly used in the key positions.Molding method: it has down draft kiln and tunnel kiln and the general sintering temperature is 1360-1480 degrees. It is a kind of aluminosilicate refractory product which aluminum oxide (Al2O3) content is higher than 48.
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 -0.4 |
+0.1 -0.4 |
+0.1 -0.4 |
+0.1 -0.4 |
|
1450°CX2H |
+0.1 -0.4 |
|||||
Apparent porosity,% |
22 |
≤23 |
≤23 |
≤22 |
≤22 |
|
Cold Crushing strength Mpa |
55 |
≥50 |
≥45 |
≥40 |
≥35 |
|
Application |
All industrial furnace |