Fireclay BrickUNF46 with Excellent Thermal Shock Resistance

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20000 m.t./month

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Description of fireclay bricks


fireclay bricks is dense shaped refractory material. With high refractoriness and mechanical behavior under high temperature, fireclay bricks is the necessary material of high-temperature services, mainly used for industrial furnaces and kilns and thermal equipment.



Features of fireclay bricks

Low thermal conductivity       
High refractoriness  
High mechanical strength      
Excellent thermal shock resistance


Applications of fireclay bricks


fireclay bricks has wide applications, mainly used in metallurgy, construction(cement and glass), petroleum, chemical industry, electric power and machine building.



Specifications of fireclay bricks

Refractoriness (℃) 1750
Bulk Density (g/cm3) ≥2.25
Apparent Porosity (%) ≤20
Cold Crushing Strength (Mpa) ≥35
Refractoriness Under Load (T0.6) (℃) 1420
Reheating Linear Change (%) 1430℃×2h
0 ~-0.1
Chemical Composition (%)
Al2O3 46


Images of fireclay bricks

Fireclay BrickUNF46 with Excellent Thermal Shock Resistance

Fireclay BrickUNF46 with Excellent Thermal Shock Resistance

Fireclay BrickUNF46 with Excellent Thermal Shock Resistance

Fireclay BrickUNF46 with Excellent Thermal Shock Resistance



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:can the red brick be used as refractory brick?
1200---1750 of the refractory bricks, below 1000 degrees of red brick brick is ok.
Q:What is the color of the refractory brick to repair the same color as the 1400
carbonaceous refractory brick 186, heat preservation brick, firing under 1300 ~ 1400 degrees Celsius, calcium, 3373 in fact, there are many kinds of refractory bricks. The mineral composition of the clay brick is mainly kaolinite (2SiO2, 2H2O, Al2O3) and 6% to 7% impurities (potassium, according to a certain granularity requirements of the ingredients, fireclay brick, etc., after molding, titanium, dry.
Q:How to calculate the pressure of hydraulic machine pressures refractory brick?
If it is a plunger type cylinder, the pressure of a cylinder is the cross-sectional area of the piston multiplied by the pressure of the hydraulic system; if it is piston cylinder, that is the inner diameter of the hydraulic cylinder multiplied by the pressure of the hydraulic system. Adopt cm as diameter's unit, a unit of pressure is kilogram force per square centimeter, the calculated result is kilogram which divided by one thousand is ton.
Q:The furnace refractory bricks are burnt into ash, what material can resist higher temperature than the refractory brick
steel plate is ok
Q:air-cooled razheng times of magnesia-alumina spinel refractory bricks
The ingredients are magnesium, oxygen, and aluminum. the components of spinel refractory can be magnesia-alumina spinel with excessive aluminium oxide, or magnesia-alumina spinel with excessive magnesium oxide. excessive magnesium oxide and aluminium oxide can form magnesia-alumina spinel in above 1700 degrees.
Q:Do refractory bricks need to be sent to the lab to test after arriving the site?
Generally speaking, as long as the use of temperature is not higher than 1500 degrees, it is not required to do the test, even if the ordinary refractory brick temperature is about 1500. If the temperature is high, then you do test to determine what kind of texture of refractory brick you need
Q:does 90m high reinforced concrete chimney need firebrick?
The chimney need firebricks or casting fire or acid resisitant concrete after casting, one aim is to resist high temperature, then is to resist acid corrosion. there is a variety of models of the refractory brick , you can refer to the installation quota.
Q:Can refractory bricks be used when it cracks for 1cm
3, If the crack is caused by burning or drying, then it can't be used. While if the carck is caused by refractory brick molding, it still can be used. 4, the crack is caused by refractory bricks raw materials.
Q:Whether the fire bricks are needed to be poured before construction?
It should be properly watered, according to its water absorption rate: Need to soak and dry in the shade. There is no need to do like the ordinary red brick
Q:Do cement kiln refractory bricks have quality guarantee period? can them still be used for a long time's pile?
They of course can be used. The plant will produce some bricks for standby application in advance, so they put for a period of time is completely no problem

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