Brand Name: | SIJIHUO |
---|---|
Refractoriness (Degree): | 1770< Refractoriness< 2000 |
Al2O3 Content (%): | 25-35% |
Material: | Alumina Block |
Shape: | Brick |
SiC Content (%): | 10 |
CrO Content (%): | 0.02 |
CaO Content (%): | 0.03 |
MgO Content (%): | 0.01 |
SiO2 Content (%): | 60-70% |
Place of Origin: | China (Mainland) |
Quick Details
Specifications
Anti-alkali brick is made of silica, flint clay, combing with other additives reacting with alkaline oxide and efficiently stopping the alkaline slags into the bricks, to achieve the alkali resistance.
Application:Alkali-resisting bricks are widely used in the cement kilns, such as the areas of preheater, precalciner, and tertiary air duct elbow, ect. the demand amount can be max 30~40% during constructing these areas of kilns.
Advantage:
1. Bulk density stability
2. Good anti-erosion character
3. Superior penetration resistance.
Technical Data
Alkali-resistant Fire Brick
Physical& Chemical analysis
Common type
High strength type
Arch type
Brand
RK-O
RK-H
RK-A
Al2O3 / %
25-30
25-30
30-35
SiO2+SiC / %
60-70
60-70
60-65
Apprent Porosity / %
21
20
25
Bulk Density /gcm3
2.2
2.2
2.2
Cold Crushing Strength/ Mpa
30
60
30
Refractoriness under load (T0.6)
1350
1300
1400
Wearing Coefficient
8.2
7.8
Thermal shock resistance/ cycles
30
30
30
Thermal expansion coefficient(900)%
0.7
0.7
0.7