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℃
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.
