High Grade Bauxite Al2O3 48% High Alumina Refractory Bricks
Definition:
high alumina brick is an ideal insulating refractory refractory material, with advantages of high strength, low thermal conductivity, good insulation property and low price. For various industrial kilns & furnaces, it is a kind of essential refractory for energy saving and temperature preservation.
Light weight high alumina brick is also called high alumina insulating brick. It contains more than 48% Ai2O3 and mainly consists of mullite and glass phase or corundum. It is usually made of high bauxite and a small amount of clay. After the raw materials are grounded, it is made into mud. Then it is cast and molded and fired at 1300~1500℃. Sometimes industrial alumimum is used to replace bauxite. Inorganic matter is added as ignition loss substance in order to increase the porosity of the refractory.
High-load soft, low-creep high-alumina brick is a high-grade refractory material made of super-grade alumina, fused corundum, and fused mullite as the main raw materials.
Advantage:
Good performance in high temp refractoriness under load
Lower thermal line expansion in high temp
Lower impurity content
Good thermal shock resistance performance
Excellent resistance in slag abrasion
Good cold crush strength
Application:
High Alumina Andalusite Fused Mullite Refractory Bricks mainly used for the insulating lining of hot surfaces or backing heat-insulating layers of other
refractory materials. The refractory linings or heat-insulating materials of the industries, such as, ethylene pyrolysis furnaces, ubular furnaces, reforming furnaces of synthetic ammonia, gas generators and high-temperature shullte kilns, etc.
Product Description:
| High Alumina Andalusite Fused Mullite Refractory Bricks |
| Item | Unit | DRL-155 | DR-150 | DRL-145 | DRL-140 | DRL-135 | DRL-130 | DRL-127 |
| Al2O3 | % | ≥75 | ≥75 | ≥65 | ≥65 | ≥65 | ≥60 | ≥50 |
| Apparent Porosity | % | ≤20 | ≤21 | ≤21 | ≤22 | ≤22 | ≤22 | ≤23 |
| Bulk Density | % | 2.65~2.85 | 2.65~2.85 | 2.5~2.7 | 2.4~2.6 | 2.35~2.55 | 2.3~2.5 | 2.3~2.5 |
| Cold Crushing Strength | Mpa | ≥60 | ≥60 | ≥60 | ≥55 | ≥55 | ≥55 | ≥55 |
| Creep Rate(0~50h ,0.2MPa) | % | 1550℃
0.8 | 1500℃
0.8 | 1450℃
0.8 | 1400℃
0.8 | 1350℃
0.8 | 1300℃
0.8 | 1270℃
0.8 |
| Linear Change on Reheating | % | 1550℃×2h
0.1 ~ -0.2 | 1550℃×2h
0.1 ~ -0.2 | 1550℃×2h
0.1 ~ -0.2 | 1450℃×2h
0.1 ~ -0.2 | 1450℃×2h
0.1 ~ -0.4 | 1450℃×2h
0.1 ~ -0.4 | 1450℃×2h
0.1 ~ -0.4 |
Packaging and shipping
Standard pac
Q: Are you trading company or manufacturer?
A: We are Manufacturer of refractory materials that have 4 plants in China; So we can provide you with high quality products at more competitive prices. we can provide you professional solutions about your problems. Although our salesman cannot reply you immediately, pls leave your email or phone number, we can let our technician directly help you ASAP.
Q: Do you accept OEM?
A: Sure, we can do OEM for much kind of brick.
Q: What information do we need to provide?
A: If you are clear about the products you purchased, please send us the brick drawings, index(include chemical and physical indicators )and order quantity.
If you are not familiar with it, please tell us the usage and working temperature, we will recommend the product to you.
Q:Is there any cost for the sample?
A: We provide free sample(Less 3 pcs) but don't bear the freight.
Q: What is the Warranty for the fire brick?
A: For all the brick, we have 1 years warranty. If any quality problems on our side occurred in this period, we will take on the shipping cost and replacement.
king: waterproof inner packing + outer packing suitable for container transportation
Product Tags:
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