Fireclay Brick with RN40 Low Thermal Conductivity

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Tianjin
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1 m.t.
Supply Capability:
20000 m.t./month

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Description of fireclay bricks

CMAX fireclay bricks are made from clinker clay. The alumina content ranges from 36% to 48%.

 

Features of fireclay bricks

1. Lower content of iron, alkaline and impurities, good high temperature properties.
2. Homogeneous structure, light weight, energy saving because lower heat storage in     the furnace during cooling cycles.
3. High strength, good thermal shock resistance under high temperature.
4. Precise sizes due to grinding and shaping after firing, which meets the requirement of construction.

 

Applications of fireclay bricks

CMAX fireclay bricks are commonly applied in blast furnace, hot blast furnace, teeming ladle, glass furnace, etc.

 

Specifications of fireclay bricks

FIRE CLAY BRICK---RN40
Refractoriness (℃) 1730
Bulk Density (g/cm3) ≥2.15
Apparent Porosity (%) ≤24
Cold Crushing Strength (Mpa) ≥28
Refractoriness Under Load (T0.6) (℃) 1430
Reheating Linear Change (%) 1350℃×2h
0 ~-0.3
Chemical Composition (%)
Al2O3 ≥40
Fe2O3 ≤2.0

 

Images of fireclay bricks

 

Fireclay Brick with RN40 Low Thermal Conductivity

Fireclay Brick with RN40 Low Thermal Conductivity

Fireclay Brick with RN40 Low Thermal Conductivity

 

FAQ of fireclay bricks

 

1. Which products do you have?

We have all kinds of refractory brick, castable, mortar, cement, ceramic fiber products, etc.
Or you could browse our products to choose what you need.

 

 

2. Can you give me a general idea of the specification and technical data of your products?

CNBM offer a range of refractory and insulation products. We provide refractory bricks, monolithic refractories as well as ceramic fiber products. And On your given shapes, drawings or description, we are producing refractories with all sizes and shapes, resistant to temperature from 800 °C till 1800 °C, using various machines and equipments for cutting, grinding, drilling, polishing, shaping processes.
Every refractory product by CNBM is of superior quality. Lesser refractory products can not approach. CNBM utilizes proprietary testing methods, testing for chemical content, density, apparent porosity, cold crush strength and modulus of rapture. With stringent quality control, you can count on CNBM products to exceed refractory industry standards and your expectations.

 

3. Can you give me a brief introduction of the application of your products?

We are mainly specializing in the refractory materials in iron and steel, cement, glass, ceramics, petrochemical, electric power Industry, etc.

 

4. If I need your offer, what information do you need?

In order to choose suitable products, it will be appreciated to provide us the information, such us specification, technical data, order quantity, products application etc.
If any question, please contact us freely.

 

 

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Q:What to do if refractory bricks saltpeter when they are used outdoor
Efflorescence is usually dialysised from brickwork joints, dealing with the gap is ok These white substaince inside the pan tile: Cement efflorescence efflorescence is wow cake section from light leather intestinal common disease inumiya Hua building surface, according to their different causes and manifestations, there is pan cream, white, whitening, cream, on the walls and decorative surface erosion and other names, is the change of soluble saline alkali soil, adobe, brick, cement, mortar, concrete, masonry, ceramic tile, paint and other building materials with temperature, humidity and other external environment, in a water absorption, water transfer, water evaporation process with physical and chemical changes of the original building material damage disease phenomenon, erosion degree also has the very big difference there is a common, get damp, foaming, powder, drum, hollowing, cracking, spalling, mildew and crystallization phenomenon. Cement efflorescence may have some relationship with the quality of the cement, sand, water, air, temperature, humidity, it is a common fault in building. Use cement to do the pebble shape, it also prones to the above problems: A layer of white stuff on the surface. Terms of settlement: Scrape the dust in brickwork joint, pointing again. Use special pointing agents, more resistant to corrosion, not easy to efflorescence.
Q:application of phosphate refractory bricks
The 4 properties of phosphate refractory bricks: (1) high strength wear resistance (2) and chemical erosion (its alkali resistant ability is better than that of clay brick and high alumina brick) (3) and good thermal shock resistance (4) high load softening temperature in rotary kiln, kilneye, kiln Zone door cover, cooling machine and lining refractory brick falling parts easy to loose
Q:What is the life of an old fashioned refractory brick kiln transformed into a flat topped tunnel kiln? what material should be used to transform the old fashioned refractory bricks vault kiln to flat tunnel kiln, and how long is the service life?
use castable refractory
Q:What are required for high temperature refractory bricks?
Volume density, aluminum content, soft bearing, thermal shock
Q:What's the reason of cracks in refractory bricks?
The relative density is high, and high temperature heat treatment and increase the strength of qualitative brick, for 10 days, then only the shorter time for heating and drying and dehydrating, you can smash a brick if it's a long time! There will be a stress loose phenomenon making bricks now, the internal density of these crack bricks are not the same, in addition to the effective drying, dehydrating and heating treatment, the time distance is small, basic bricks and finished bricks adopt line production, when drying, the water is also evaporated at the same time, the central density should be high ! The reason is very simple, the greater extrusion force the brick bears in the molding, the closer to the edge, the smaller density is, the better to keep forming, the shorter residence time, the higher the rate of finished product is, which belongs to the natural drying, this phenomenon is more obvious
Q:Mainly use the raw materials inside refractory bricks,
Go to the refractory factory to buy some refractory mortar that has the same texture of refractory bricks, the general boiler use clay refractory mortar.
Q:The shape and size of general used refractory brick
240mm * 115mm * 53mm. and the width is 115mm, the shape and size of mechanism red brick is: 230mm * 114mm * 65mm, the outline dimension of special refractory brick is of 65mm thickness according to the national standard: Length is 230mm. That is: Length is 240mm. General type refractory brick's outline dimension is of 114mm width. That is, thickness is 53mm: 345*328*97
Q:High alumina refractory bricks (Universal arc) weight for hot metal ladle
Climbing, C23B ladle generally use T3 ladle bottom brick, brick wall with C23 package, C231 Some permanent layers are built from high alumina bricks, and some are built from castable refractory, T82, T43. Specific size can be checked according to the type of brick
Q:Where the refractory bricks rider bricks that are used for building arch and vault should be put?
Arch and vault shall be built simultaneously from both sides of the arch of the foot to the center of symmetry, when masonry, inverting concentric reducer of arch brick is prohibited; the lock should be driven into the brick arch from the side, if the last rider brick can't be driven from the side, you can process the first 1-2 brick to make the size of the lock and the lock buckle equal, and then drive suitable rider brick from top, and use steel plate to jam-pack the side; dismantling arch tire must be performed after all rider bricks are driven and lock brick arch foot ditch masonry is completed and the final tightening nut for skeleton retractor rear.
Q:can castable refractory replace refractory bricks in rotary kiln?
No, there is expension gap between bricks, and that is no solution when the castable refractory expend.

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