refractory fireclay brick RN-42

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Min Order Qty:
1000 pc
Supply Capability:
10000000 pc/month

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Quick Details

Place of Origin:

Henan, China (Mainland)





SiO2 Content (%):

standard international

Al2O3 Content (%):


MgO Content (%):

standard international

CaO Content (%):

standard international

Refractoriness (Degree):

1770°< Refractoriness< 2000°

CrO Content (%):

standard international

SiC Content (%):

standard international

Model Number:


Brand Name:



Clay Brick For Furnace

Apparent porosity:


Bulk denisity:


Creep rate:




Refractoriness Under Load:

standard international

Permanent Linear Change:

standard international

Cold Crushing Strength:



standard international



Packaging & Delivery

Packaging Details:standard fumigate pallet for sea transportation
Delivery Detail:40 days after signing the contract


refractory fireclay brick RN-42 
1.NASDAQ listed company 
2. stock code: ANNC 
3.exported to many foreign countries 
4. pass ISO

Product Description 

Product name Clay Brickmark
ItemsApparent porosity(%)Bulk density(g/cm3)creep rate(1250°C,20-50h,0.2MPa)%Refracoriness(°C)Refractoriness under load(0.2MPa)(°C)
ItemsPermanent linear change(1150°C,4h,average)Cold crushing strength(MPa)Thermal shock resisitance (1100°C,water)cycleAl2O3(%)SiO2(%)Fe203(%)

We can do different components of low creep brick, Fireclay brick is refractory clay and flint clay clinker as the main raw materials, containing 30% to 46% alumina, refractoriness 1580 ~ 1770 °C, is a weak acid refractory, thermal shock resistance and the acidic slag corrosion resistance.

Our Services

&  High professional services.

& Your private information will be well protected.

&  After receiving the e-mail reply as soon as possible.

&  We have a high-quality after-sales service


Client:what is your company advertage?

 Us:1,  Our company has established a complete quality assurance system,we have been certified by an array of ISO.

       2,  There is almost no black spot on the surface of our bricks. It represents more even and neat color due to the superior raw material and strict selection.

       3,  Our product enjoys higher refractoriness under load because of its higher heat treating temperature in the high temperature zone of the furnace.

Client :why should we choose you?

   Us:we can ensure qualified products only and 100%exfactory pass rate.

refractory fireclay brick RN-42

refractory fireclay brick RN-42

refractory fireclay brick RN-42

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Q:What type of refractory brick won't deform or crackbe for a long time in the temprature of about 1600 degrees?
1. , mullite poly light ball brick type, andalusite brick type: MJ-1600 MJ-1700 the temperature is higher than 1600 C. 3, the refractory bricks that won't deform or crack in the 1600 degrees Celsius for a long time includs the following several commonly used bricks: GMZ-80 GMZ-75 the temperature is higher than 1650 DEG C, 2, corundum mullite brick type
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:What is the problem about splintering when the refractory brick is fired?
There are many bubbles inside the refractory brick, it is also possible that the brick itself is not up to the standard about volume density, then refractory brick fragmentates. There are many reasons, may be in the process of repression
Q:The matching ratio of masonrying refractory bricks cement
Size of brickwork joint: Vertical and horizontal seam are 2 ~ 3 mm. The ratio of seam mud: Refractory clay mud 100%; per m3 dry, clean industrial water 400 ~ 600t/, no more than 3mm
Q:How to prevent high alumina refractory brick from producing crack when reproduce high alumina refractory brick?
1-1, on the 1 in order to prevent the emergence of crack in the production of high alumina refractory brick. 2 is appropriate, the water absorption rate of the tube mill should be controlled below 6%, the excess air coefficient controlled between level 1 and 2. The water absorption rate of clinker of bauxite with high alumina controlled under 4%-5%, making the high aluminum refractory brick burning in a smoothly and steadily weak oxidation atmosphere, and should be adjusted by thermotechnic
Q:What is the best color of refractory brick
Q:which kind of refractory bricks do coke oven and oxtongue brick belong to ( ) A, silica brick B, clay brick C, high alumina brick
General use clay bricks, but the silica brick is better, the price is expensive.
Q:does the furnace wall use refractory bricks to keep the heat? Or use the insulation material to keep heat ?
if use the rock wool or aluminum silicate, the furnace arch and furnace wall of biomass boiler all use refractory brick, and outside the furnace wall there is a layer of insulation material, some is perlite coal-fired boiler
Q:What kind of refractory brick is suitable for 24*28m rotary kiln of 5,000 tons?
Magnesium spinel
Q:How to adjust the temperature in the 160 meter tunnel kiln?
Tunnel kiln can be attemperated by burning products, this will not affect the firing of different products, and can burn back processing products.

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