ALLTHERM series insulating bricks is a kind of highly efficient, energy saving, low-carbon, environmental protection advanced products which are manufactured according to ASTM standard. ALL series products are the best lining and insulation materials in all types of industrial furnaces in the field of Metallurgy, Aluminum, Petrochemical, Ceramics, Power and Glass. They can be applied as heat insulation or no-melt erosion parts of the working layer. The products have been widely used in the following furnaces and achieved satisfactory results.
Metallurgy industry: Blast furnace, Hot blast stove, Reheating furnace, etc.
Petrochemical industry:Ethylene cracking furnace, Hydrogen production furnace, Primary reformer furnace, Reheating furnace
Ceramics Industry: Roller kiln, Pusher kiln, etc.
Glass industry: Glass furnace regenerator, etc.
Carbon Industry: Carbon roaster,etc.
Aluminum electrolytic industry: Aluminum electrolysis cells, etc.
Other industries: Tunnel kiln, Shuttle kiln, etc.
Advantages
Low Thermal Conductivity: More porosity brings excellent insulation effect, energy saving
High Crushing Strength: High crushing strength under thermal state, volume stability.
Low Heat Storage: Tiny thermal storage when absorb heat, obvious energy saving effect.
High Purity: Low content of iron, alkaline and metal impurities.
Accurate Dimension: Precise brick size and special shapes by machining, cutting and grinding, expediting bricklaying.
Physical properties and Chemical analysis
|
|
ALL-23 |
ALL-26 |
ALL-26-56 |
ALL-28 |
ALL-30 |
ALL-32 |
|
|
ASTM C155-97 °C Classification Temperature ℉ |
1260 2300 |
1400 2600 |
1430 2600 |
1540 2800 |
1650 3000 |
1760 3200 |
|
|
ASTM C134-95 g/cm3 Bulk Density lb/ft3 |
0.60 37 |
0.80 50 |
0.80 50 |
0.90 56 |
1.03 64 |
1.25 78 |
|
|
ASTM C133-97 Mpa Cold Crushing Strength. Ib/in2 |
1.2 170 |
2.0 284 |
2.0 284 |
2.6 370 |
2.8 398 |
3.4 484 |
|
|
ASTM C133-97 Mpa Modulus of Rupture lb/in2 |
0.9 128 |
1.5 218 |
1.5 218 |
1.6 232 |
1.7 247 |
2.0 290 |
|
|
ASTM C210-95 % Permanent Liner Change °C x hrs |
0 1230 |
-0.5 1400 |
-0.5 1400 |
-0.8 1510 |
-0.9 1620 |
-0.9 1730 |
|
|
ASTM C182-88 Thermal Conductivity (W/m.k) |
400°C |
0.17 |
0.24 |
0.24 |
0.30 |
0.40 |
0.49 |
|
600°C |
0.19 |
0.27 |
0.27 |
0.32 |
0.42 |
0.50 |
|
|
800°C |
0.22 |
0.30 |
0.30 |
0.35 |
0.44 |
0.51 |
|
|
1000°C |
0.25 |
0.32 |
0.32 |
0.38 |
0.45 |
0.53 |
|
|
1200°C |
- |
0.35 |
0.35 |
0.39 |
0.47 |
0.55 |
|
|
Al2O3 % |
45 |
53 |
56 |
64 |
72 |
76 |
|
|
Fe203 % |
1.0 |
1.0 |
0.9 |
0.7 |
0.6 |
0.4 |
|
|
Si02 % |
50 |
43 |
38 |
33 |
26 |
22 |
|
|
K20 + Na20 % |
1.1 |
1.0 |
1.0 |
0.8 |
0.2 |
0.1 |
|
The above data are subject to normal manufacturing variations and change without notice. Results should not be used for specification purpose.
