Unfired Clay Bricks Al2O3 content 30-48% Fire Clay Brick for Cement Kiln
Introduction:
It belongs to silicon-aluminum series products, using clay clinker as aggregate, refractory clay as binder, which is Al2O3 content in 30-48% refractory products.
Application:
Clay brick is used for carbon furnace, baking furnace, heating boiler, glass furnace, cement kiln, fertilizer gasification furnace, blast furnace, the hot blast stove, coking furnace, furnace, casting and casting steel brick, etc.
Technical Index:
| Item |
Chamotte Brick for Carbon Furnace |
| N-1 |
N-2a |
N-2b |
N-3a |
N-3b |
N-4 |
N-5 |
N-6 |
| Al2O3 % |
≥42 |
≥40 |
≥40 |
≥40 |
≥40 |
≥38 |
-- |
-- |
| Refractoriness ℃ |
≥1750 |
≥1730 |
≥1730 |
≥1710 |
≥1710 |
≥1690 |
≥1670 |
≥1580 |
| Refractoriness Under Load,℃,[0.2MPa×0.6%] |
≥1400 |
≥1350 |
-- |
≥1320 |
-- |
≥1300 |
-- |
-- |
| Permanent Linear Change, % |
1400℃×2h |
+0.1
-0.4
|
+0.1
-0.5
|
+0.2
-0.5
|
-- |
-- |
-- |
-- |
-- |
| 1350℃×2h |
-- |
-- |
-- |
+0.2
-0.5
|
+0.2
-0.5
|
+0.2
-0.5
|
+0.2
-0.5
|
-- |
| Apparent Porosity % |
≤22 |
≤26 |
≤24 |
≤24 |
≤26 |
≤24 |
≤26 |
≤28 |
| Cold Crushing Strength, MPa |
≥30.0 |
≥20.0 |
≥25.0 |
≥20.0 |
≥15.0 |
≥20.0 |
≥15.0 |
≥15.0 |
