Low Porosity Fireclay Brick SG12

Ref Price:
$454.11 - 555.03 / m.t
Loading Port:
China Main Port
Payment Terms:
TT or L/C
Min Order Qty:
5 ton m.t
Supply Capability:
1000 Tons Per Month m.t/month

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General Information of Low Porosity Fireclay Brick SG12

Our corporation produces a comprehensive range of Low Porosity Fireclay bricks, with 30% to 55% alumina content, all of these bricks exhibit excellent performance.

Our Low Porosity Fireclay bricks are the final result of blending excellent calcined flint clay and calcined bauxite, with cutting-edge technology, adding superfine powder, after mixing, drying, forming, in the high temperature shuttle kiln. We ensure you that the Fireclay Bricks made by us possess high quality standard and have gone through all the complicated quality control parameters. Their durability and strength adds life to the structure and they have the capacity of bearing high temperature.



   Technical Data of Low Porosity Fireclay Brick SG12

Physical Properties:




Permanent Linear Change(1400℃×2h)%



Apparent Porosity, %



Cold Crushing Strength



Refractoriness Under Load (T0.6)


Thermal Expansion at 1000℃,






Chemical Analysis:









Technical Data are typical average results from test pieces. The technical data is offered solely for your consideration. And CNBM reserve the right to modify the technical data without any prior notice. Users of CNBM products should make their own tests to determine the suitability of each product for their particular purposes.



Feature of Low Porosity Fireclay Brick SG12

Resistant to thermal shock, abrasion, chemical attack

High ability for anti-abrasion during work

Low shrinkage degree under high temperature so as to maintaining integrity of the furnace lining

Low apparent porosity, and low Fe2O3 content to reduce the carbon deposit in the blowhole and avoid the bricks broken in case of expansion


Applications of Low Porosity Fireclay Brick SG12

Low Porosity Fireclay Brick SG12 is mainly used in glass furnace.


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Q:What is refractory brick? What is refractory clay? ?
Refractory brick is a kind of brick that is fireproof, refractory soil is the soil that is fireproof
Q:Small size black brick can replace refractory bricks for wood burning fireplace?
No, because the melting point of the black brick is only more than 700 degrees, will flow. But that of refractory brick is above 1200 degrees. It mainly depends on the peak temperature, because the fire area of rural cooking range is small.
Q:Can thick steel plate be used instead of the furnace inside the refractory brick?
It depends on the temperature. The steel plate is a kind of heat conduction material which hasn't heat insulation, which should be based on the working environment.
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:The boiler is divided into several categories according to the structure, what characteristics does each have?
package boiler and assemble boiler are divided into vertical boiler and horizontal boiler. Vertical boiler. Assembled boiler adapts to boiler more than 6 tons, the package adapts to boiler less than 10 tons.
Q:What is the perservation method for refractory bricks used for cement kiln?
The hydration resistance ability is better than the alkaline materials, 1 years will be no problem if the environment is good, alkali-resistant bricks used in cement kiln brick refractory brick (magnesia-chrome brick, the preservative time will be longer, the remaining products should also be moistureproof. No matter what refractory materials, phosphate brick. If the package is complete, it must be stored in a dry and rain-proof environment, silmo brick. Anti-stripping alumina brick, if is not immediately used, it's necessary to take measures of moisture proof, such as spinel brick must be moisture-proof
Q:What are the main components of refractory bricks
Mainly is magnesium oxide, sodium silicate as a binder
Q:Are refractory bricks necessarily needed to build a kitchen stove?
The kitchen stove is used to cook dinner, so refractory bricks are unnecessarily needed. It depends on the temperature.
Q:why the color of refractory brick is white after high temperature firing when the meteorite is black after the burning?
There are different reasons. Meteorolites can mainly be divided into three types, iron meteorites (iron nickel alloy): Stone meteorites (the main component is silicate), and stony iron meteorites(the mixture of iron and silicate)
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.

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