• High Alumina Brick - Refractory Brick SK-32 (Fire Clay) System 1
  • High Alumina Brick - Refractory Brick SK-32 (Fire Clay) System 2
  • High Alumina Brick - Refractory Brick SK-32 (Fire Clay) System 3
High Alumina Brick - Refractory Brick SK-32 (Fire Clay)

High Alumina Brick - Refractory Brick SK-32 (Fire Clay)

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Loading Port:
China main port
Payment Terms:
TT OR LC
Min Order Qty:
30 m.t.
Supply Capability:
20000 m.t./month

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Product Description


Refractory Brick / Super Duty,Dry Press Fireclay Brick


YUFENG Refractory's Super Duty Fireclay Brick meeting ASTM regular type classifications,


Key Features:


High Strength,

Lower shrinkage,

Good Alkalis Resistant,

Good resistant to Thermal Shock


Typical Applications:

Carbon baking pit furnace fluewalls and Head Walls, Air Heaters, Combustion Chamber, Boilers, Stacks, etc


Chemical Compositions (Approximate)

 

Silica (SiO2)             53.10%

Alumina(Al2O3)       42%

Iron Oxide(Fe2O3)   2%

Titania (TiO2)          1.9%

Lime (CaO)              0.3%

Magnesia(MGO)      0.4%

Alkalies (Na2O+K2O) 0.6%


Physical Properties (Typical)


Pyrometric Cone Equivalent

Orton Standard Cones 34

Temperature Equivalent 3187º F(1753º C)


BulkDensity 139lb/ft3   

                    (2.22g/cm3)


Cold Crushing Strength: 4000lb/ft2

                                       (27.5Mpa)

Permanent Linear Change at 2910º F (1600º C) -0.3%


Apparent Porosity 22-24%


Hot load Test Deformation at 2640º F (1450º C) -0.2 to -0.7%

 

 


why us

1. We are a manufacturer, which can control the cost easilier than trade company also can give you anwer more quickly.

2. As a manufacturer, we know much in technique and can give you more support in technique problem.

3.We establish the company and began to produce refractory materials since 1988. We have longtime and mature experience  for entire production.

4.Our products are complete in specifications with various of sizes.

5. We enjoy a good reputation in the customers in domestic and overseas markets.


Q: What is the price of the latest thermal insulation material?
Also through online pre understand the products and prices, and now have large-scale manufacturers are generally opened on the cable business. Goods than three, manufacturers on-site inspection, confirm the quality of goods after considering cooperation.
Q: Density of high alumina bricks
Alumina content of 48% or more, mainly from mullite and glass phase or corundum composition of lightweight refractory. The volume density is 0.4 ~ 1.35g/cm3. The porosity is 66% ~ 73%, and the compressive strength is 1 ~ 8MPa. Better thermal shock resistance.
Q: Which is faster for heat transfer between corundum bricks and high alumina bricks?
There must be a difference. They vary in color from the amount of aluminum, the weight, the temperature, and the color.
Q: Corundum, high alumina and fireclay refractory difference is what
In fact, they are not consistent with raw materials, corundum refractories can use white corundum, white corundum, brown corundum corundum material, alumina content of these materials is higher than 90%, while the high aluminum refractory material is bauxite, alumina in 90 to less than 70, and clay raw materials the aluminum content is less than 70..
Q: What are the high temperature refractory mortars made of?
Products used in metallurgy, building materials, machinery, chemical, power industry, industrial thermal furnace, for masonryBuilding clay brick, high alumina brick and corundum brick have the characteristics of full grey seam, good airtightness, high bonding strength, high temperature performance and suitable construction time
Q: What is spalling resistant high alumina brick?
Spalling resistant high alumina brick is a kind of high alumina brick. Antistripping high alumina brick with high grade bauxite and containing Zr02 synthesis as raw material, according to a certain proportion by high pressure molding system in sintering products, products with anti stripping ability, and have the anti erosion potassium, sodium, sulfur, chlorine and alkali salt, low thermal conductivity and other properties that is the transition zone of cement kiln and decomposition of ideal material with remarkable characteristics, the product is good thermal shock resistance, strong ability to adapt to the environment. It is used in the preheating or decomposing furnace, grate cooler and so on.
Q: What are the requirements for refractory materials in heat treatment furnace?
Fire resistance is an important performance index of refractory materials, but it does not represent the highest temperature in actual use of refractory materials. In actual use, refractories also bear certain pressure, therefore, must consider the high strength at high temperature refractory material, which is in high temperature under certain pressure without deformation, such as the NZ-40 refractory refractory degree up to 1730 DEG C, but the maximum temperature is only 1350 degrees celsius.
Q: How to distinguish the good or bad of the high aluminum brick?
Weigh the weight of the next block. According to the weight standard, a high alumina brick is 3.9 kg in weight, two in high alumina brick, three in high aluminium brick and 4.5 kg in 4.2. The same grade, the same type of high alumina brick, if the weight of a single brick to this standard, but for high quality high alumina brick, otherwise, can not reach such a weight, it shows good quality. If there is a crack, a large piece of broken angle, four sides of inequality, it is for substandard products.
Q: How high can aluminum bricks expand at 80O degrees of heat?
When an object is heated, the particle moves faster and thus occupies additional space. This phenomenon is called dilation.
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.

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