Place of Origin:
China
Brand Name:
Annec
Blast Furnace 1270C Fireproof High Alumina Refractory Bricks
Standard sizing:This brick is special size for pipes of industry furance ,Special size and OEM Service also provide!
The size is precise, providing kinds of shapes according to customer's drawing
Definition:
High Alumina Checker Bricks is a kind of refractory material. The main component of this refractory brick is Al2O3.
Due to different resources, national standards are not completely consistent. For example, European countries stipulate that the lower limit of Al2O3 content for high aluminum refractory is 42%.
In China, the Al2O3 content in high-alumina bricks is usually divided into three grades: Ⅰ etc.-Al2O3 content> 75%; Ⅱ etc.-Al2O3 content is 60 ~ 75%; III etc.-Al2O3 content is 48 ~ 60%.
High Alumina Checker Bricks is a neutral refractory with alumina content above 48%.
It is formed by calcining alumina and other raw materials with high alumina content. High thermal stability, fire resistance above 1770℃. It has good slag resistance and is used for lining steel-making electric furnaces, glass melting furnaces, cement rotary furnaces, etc.
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.
This product has the advantages of low temperature creep, strong corrosion resistance and good thermal shock stability.
It is suitable for large and medium-sized hot blast stoves. It opens up the next article for the localization of high-quality and high-grade imported refractory materials required by China's new hot blast stoves. The road to success has been included in the national "Spark Project" project.
Advantage:
(1) Refractoriness:
The refractoriness of high-alumina bricks is higher than that of clay bricks and semi-silicon bricks, reaching 1750-1790℃, which belongs to advanced refractory materials.
(2) Load softening temperature:
Because of high Al2O3 in high-aluminum products, less impurities, and less fusible glass body, the load softening temperature is higher than clay bricks, but the mullite crystal does not form a network structure, so the load softens The temperature is still not as high as silicon brick.
(3) Thermal conductivity:
High aluminum brick has better thermal conductivity than clay brick
(4) Thermal shock resistance:
The thermal shock resistance of high alumina bricks is between clay products and silica products
Application:
High Alumina Checker Bricks Generally suitable for thermal surface refractory lining or other refractory back lining insulation layer.
Refractory lining or thermal insulation for industrial furnaces in petroleum or chemical industries, such as ethylene cracking furnaces, tubular furnaces, reforming furnaces for synthetic ammonia, gas generators and high temperature shuttle kilns.
Tunnel kiln, push board kiln, roller kiln, wood kiln refractory lining material for industrial and household ceramics.
Product Description:
| High Alumina Checker 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 |
Why choose us
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: How long is delivery time?
A: The delivery time will be determined according to the quantity of the order. Our monthly output is 12000tons. We have good connection with shipping company, agency, as well as the local custom and port authority. making sure we deliver on time.
Q: When can I get the price?
A: We usually quote within 24 hours after getting your detailed requirements, like size, quantity etc. If it is an urgent order, you can call us directly.
Q: What is the HS code?
A: The HS code is 69022000.
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.
What you will get from us is our best profession in service and the hospitality that you are willing to become our Friend.
So choosing us is the right choice for you. If you are interested in our products or if you have any question, pls feel free to contact us at any time. We will reply as soon as possible.
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