Refractory materials
- 140 CNY/t. - from 25 t.
- Courier
- In detail
- TypeCeramsite concrete block
REFRACTORY BRICK
Refractory bricks refers to the brick whose Al2O3 contains from 30% to 80%, the contains of Al2O3 from 30% to 42% is call clay bricks, the contains of Al2O3 from 45% to 80% is call high alumina bricks.Typical Parameters
|
Item |
clay brick |
High Alumina Brick |
||||
|
SK32 |
SK34 |
SK35 |
SK36 |
SK37 |
SK38 |
|
|
Al2O3 (%) ≥ |
35 |
42 |
48 |
55 |
65 |
75 |
|
Density(kg/m3) |
2,1 |
2.2 |
2.25 |
2.42 |
2.46 |
2.55 |
|
Refractoriness (oC) ≥ |
1670 |
1730 |
1750 |
1770 |
1790 |
1790 |
|
Refractoriness under Load, oC,0.2MPa ≥ |
1250 |
1400 |
1420 |
1470 |
1500 |
1520 |
|
Linear Change(%),oC×2h |
1350 |
1450 |
1450 |
1500 |
1500 |
1500 |
|
-0.5~0 |
-0.5~0 |
-0.4~+0.1 |
-0.4~+0.1 |
-0.4~+0.1 |
-0.4~+0.1 |
|
|
Porosity (%)≤ |
24 |
22 |
20 |
20 |
19 |
19 |
|
Cold Crushing Strength, MPa≥ |
20 |
30 |
39.2 |
44.1 |
49 |
53.9 |
Brief description
Clay brick is refers to the Al2O3 content is 30% ~ 40% aluminum silicate. Clay brick is made of soft clay and 50% and 50% of hard clay grog, ingredients required by certain granularity, after forming, drying, burning under the high temperature of 1300 ~ 1400 ℃.Clay brick belongs to the weak acid refractory products, can resist acid slag and the erosion of acid gases, the alkali resistance ability is a bit poor. Clay brick has good thermal shrinkage.