• High Alumina Bricks - Refractory Firebricks on Promotion System 1
  • High Alumina Bricks - Refractory Firebricks on Promotion System 2
High Alumina Bricks - Refractory Firebricks on Promotion

High Alumina Bricks - Refractory Firebricks on Promotion

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Loading Port:
Shanghai
Payment Terms:
TT OR LC
Min Order Qty:
10 m.t
Supply Capability:
8000 m.t/month

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Refractory Firebricks High Alumina bricks on Promotion


Firebricks Description
High alumina insulating fire brick is a kind of insulation material adopting organic matter as ignition loss substance in order to increase the porosity of refractory,which has such advantages as high porosity, small volume density,good insulation effect,high mechanical intensity,small thermal conductivity and long service life.For various industrial kilns&furnaces,it is a kind of essential refractory for energy saving and temperature preservation.This series of High Alumina fire resistant brick are made of selected high alumina bauxite, kaolin caly,hollow microsphere as the mian material.By shaping at high pressure and sintering at high temperature.


Firebricks Application
High alumina bricks are commonly used in blast furnace,hot blast furnace,the roof of electric furnace,teeming ladle,rotary kiln,regenerator etc.


Firebricks Features
.Low thermal conductivity
.Excellent acid and base slaging resistance
.High refractoriness
.Excellent thermal shock resistance
.Excellent mechanical strength

Firebricks Specification&Pictures

ITEM

UAL48

UAL55

UAL65

UAL75

UAL80

UAL85

ALP80

Refractoriness, ℃

1750

1770

1790

1790

1810

1810

1810

Apparent Porosity,%

22

22

23

23

20

20

18

C.C.S, Mpa 

39

44

49

53

55

60

100

Refractories Under Load (0.2Mpa),℃

1420

1470

1500

1520

1500

1520

1550

Reheating Linear Change,% 

1450℃x2h             0.1~-0.4

1500℃x2h             0.1~-0.4

1500℃x2h             0.1~-0.4

1500℃x2h         0.1~-0.4

1550℃x2h             -0.5~+0.5

1550℃x2h             -0.5~+0.5

1550℃x2h             -0.5~+0.5

Al2O3 Content , %

48

55

65

75

80

85





Refractory Firebricks High Alumina bricks on Promotion

Refractory Firebricks High Alumina bricks on Promotion

FAQ

Q1  What’s the transport method?

A1  FCL delivery goods with wooden pallet or wooden case by sea; If LCL delivery, must with wooden case; Sometimes need open top, flat rack or bulk cargo.

Q2  What’s the required payment term?

A2  Generally 30% TT as the prepayment, 70% TT before delivery. If need, 100% Irrevocable Letter of Credit or negotiation.

Q3  Which country are our products exported to?

A3  Apart from entire Chinese market, the US, Russia, Japan, Korea, Australia and some Southeast Asian Nations.

Q: What are the main components of high alumina bricks?
High alumina brick materials according to the main mineral phase can be divided into: aluminum silicate minerals, such as sillimanite, kyanite, andalusite, and synthetic mullite.
Q: How much is one ton of high alumina refractory brick?
High alumina refractory brick according to the different content of AL2O3 is divided into grade, grade one and grade two, and grade three high aluminum brick, Zhengzhou Kang Hui refractories factory price in 800-1900 yuan / ton, stable quality, are exported to the domestic and foreign markets.
Q: What's the difference between high alumina refractory bricks and high alumina refractory bricks?
High alumina refractory brick in all thermal shock properties except performance are better than clay refractory brick, masonry in furnace and thermal equipment, such as clay bricks can be competent the work environment is not high aluminum brick masonry.
Q: What is the price of the first grade high alumina brick?
Many factories in Xinmi have high alumina bricks, but they must choose a regular factory. Kuwait refractory level high aluminum brick price at around 1600, the quality of double stable supply
Q: Can high alumina brick resist carburizing?
The resistance to carburization is not directly related to the bulk density of bricks
Q: What are the characteristics of high alumina bricks?
The product has the advantages of high temperature, little creep, strong corrosion resistance and good thermal shock resistance, and is suitable for large and medium-sized high-temperature kilns and other energy consuming industries, such as chemical industry, electric power industry, etc.
Q: How much is one ton / ton of high alumina refractory brick?
The price of high alumina refractory bricks is not equal, according to the quality index of GB2988-2012
Q: What are the high temperature refractory mortars made of?
Siliceous mud, mineral composition and chemical composition is similar with silica, excellent corrosion resistance, water glass slurry, drying shrinkage, but also can be used for bonding fiber products, sealing furnace wall.
Q: How to reduce the harm caused by two times mullite in high alumina refractory material
Prolong the sintering time and adjust the aluminum content of the high alumina brick.
Q: What should be used as binder for making high alumina bricks?
Bond for making high alumina brick: soft clay has good plasticity, so the high alumina brick is usually made of soft clay as bond. However, the free Al2O3 free SiO2 and bauxite clinker clay in under 1200 degrees occurred two times of Mullization reaction, generate large volume expansion, silicon porosity, strength reduction. Therefore, the amount of clay powder in the ingredient should be no more than 5%.

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