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[China]
Trade Verify
Address: Industrial Cluster Area of Xinmi City, Henan Province，China.
Contact name:LI
Zhengzhou Annec Industrial Co., Ltd. |
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Definition:
High Alumina Fire Brick 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 Fire Brick is a neutral refractory with alumina content above 48%.
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 Fire Brick that mainly used for lining blast furnaces, hot blast stoves, electric furnace tops, blast furnaces, reverberatory furnaces, rotary kilns. In addition, high-alumina bricks are also widely used as open-hearth regenerative lattice bricks, plugs for pouring systems, nozzle bricks, etc.
However, the price of high alumina bricks is higher than that of clay bricks, so it is not necessary to use high alumina bricks where clay bricks can meet the requirements.
Product Description:
High Alumina Fire Brick | ||||||||
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℃ | 1500℃ | 1450℃ | 1400℃ | 1350℃ | 1300℃ | 1270℃ |
Linear Change on Reheating | % | 1550℃×2h | 1550℃×2h | 1550℃×2h | 1450℃×2h | 1450℃×2h | 1450℃×2h | 1450℃×2h |
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.
