Refractory Fireclay Brick- SK32 Low Apparent Proposity

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Tianjin
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TT OR LC
Min Order Qty:
20 m.t.
Supply Capability:
50000 m.t./month

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Product Description:

GENERAL INFORMATION:
Fireclay bricks are made from clinker clay by mixing, forming, drying, sintering and machining. The Al2O3 content ranges from 36% to 42%.
Fireclay bricks feature stable mechanical strength and good thermal shock resistance, withstanding high temperature up to 1750.
They are commonly applied as refractory lining directly exposed to heat or backup insulation layer in all kinds of industrial kiln or laboratory furnace.

ADVANTAGES:
Low thermal conductivity
High refractoriness
High mechanical strength
Excellent thermal shock resistance
Non standard sizes and shapes are available upon request

APPLICATIONS:
Petrochemical process heater
Heat treatment furnace
Ceramic firing kiln
Cement rotary kiln
Glass melting tank
Backup insulation

TECHNICAL DATA:
ITEM: ZGN42 GN42 RN42 RN40 RN36
Al2O3 ≥ %: 42 42 42 40 36
Fe2O3 ≤ %: 1.6 1.7 - - -
C. C. S. Mpa≥ : 58.8 49 29.4 24.5 19.6
Refractoriness≥ º C: 1750 1750 1750 1730 1690
Permanent Linear Change ≤ %
1350º C x 2hrs: - - - 0~-0.3 0~-0.5
1450º C x 3hrs: 0~-0.2 0~-0.3 0~-0.4(x 2hrs) - -
Refractoriness under Load(0.2 Mpa)≥ : 1450 1430 1400 1350 1300
Apparent Porosity ≤ %: 15 16 24 24 26

Note:
1) ZGN42 and GN42 are used in blast furnace.
2) RN42, RN 40 and RN 36 are used in hot blast stove.
3) Fireclay bricks can be designed and manufactured upon customers requirements.

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Q:What are the specifications of clay brick and cement brick construction?
Clay to clay (including shale, coal gangue powder) as the main raw material, through mud processing, molding, drying and roasting and.
Q:Classification of refractory bricks
Q:do the used refractory bricks pollute the environment?
the main pollution of refractory brick is coal gas pollution in the process of burning , it can be recycled to produce aggregate, waste brick has no pollution.
Q:What are the differences and uses of non clay bricks, non clay bricks and ordinary red bricks?
Just bricks without claySuch as foam hollow bricks, straw bricks, and some other cement bonded solid, hollow bricks and so on
Q:What are the advantages and disadvantages of clay bricks?
Advantages of clay bricks1. clay brick materials, cheap, durable, and fire prevention, heat insulation, sound insulation, moisture absorption and other advantages, is widely used in civil engineering. Waste brick can also be used as aggregate of concrete.2. waste bricks can also be used as aggregate for concrete.3. fly ash brick is made of fly ash as main raw material and mixed with cement material such as coal gangue powder or clay. It is made up of batching, molding, drying and roasting. It can make full use of industrial waste residue and save fuel.
Q:The state's policy on clay bricks
Now the country for the solid clay brick is the policy of emerge of itself and perish of itself. Because solid clay bricks occupy resources, vigorously encouraging new brick, I was open brick reached up to four, but we have to see this with money the disease I do, I don't think they all sold, finally want to engage in a new type of brick, but in the investigation that model free burning brick cost is too high, and a lot of people are not optimistic, finally did not dare to engage in this, we also have the business,
Q:Which is best of refractory brick press machine?
Rub press machine have been forced out. Without permanent magnet. The electric screw press machine is suitable for the forming of refractory bricks. Use Kehui switch reluctance to servo motor to drive electric screw press machine, have the ability of high quality electric screw press machine, no water cooling, high efficiency and energy saving, green and environmental protection.
Q:Why are clay bricks used when buildings are below zero? Frost heaving, water absorption, or something?
The clay brick has a certain strength, and has better heat insulation and sound insulation performance, and the interior wall of the winter can not appear condensation phenomenon, and the price is low. Although a variety of new wall materials are emerging, clay bricks will still be used as a main material for masonry work in the future
Q:Do refractory bricks insulate heat?
Refractory bricks have a certain ability of heat insulation, but its thermal insulation is far less than that of glass fiber and wool.
Q:is it correct that the higher the refractoriness is, the better refractory bricks are?
Not completely correct. Refractory bricks need to be strong in addition to the fire resistance.

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