Refractory Fireclay Brick- (UNF42) High Strength

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20 m.t.
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50000 m.t./month

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Product Description:


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

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

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

High refractoriness under load
High mechanical strength
Excellent thermal shock resistance
Corrosion resistance.

Good resistance against acid slag
High mechanical strength
Stable performance under high temperature environment

Physical Properties:

Refractoriness, 1730
Bulk Density, g/cm3 2.15
Apparent Porosity, % 22
C. C. S, Mpa 30
Refractories Under Load (0.2Mpa), 1400
Reheating Linear Change, % 1400x2h 0.1~-0.4
Al2O3 Content, % 42

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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:buliding method of refractory bricks in boilers
Q:What are the differences between high alumina brick and high alumina refractory brick?
with the increase of the fire temperature and other indicators, Al2O3 content is also improving. the general content of Al2O3 in high alumina brick is more than 60% .
Q:Can common cement mortar be used to build the lining of chimney refractory brick?
No. You have used fire bricks, which shows there is a certain temperature inside, you'd better use refractory cement
Q:How to test the various components of the refractory brick?
It is difficult to distinguish if it is mixed together, fully smashing and mixing. Then assay. Or testing after smashing and separating.
Q:does the furnace wall use refractory bricks to keep the heat? Or use the insulation material to keep heat ?
Both needed! In fact, the insulation material contains refractory brick.
Q:Are there any good improvement measures for the always collapse of the previous vaulted tunnel kiln built by refractory bricks?
refractory castable integrally casting
Q:Is refractory brick afraid of rain?
High alumina clay is not afraid of rain, but covering is better, magnesium carbon refractory brick had better not be rained.
Q:What kind of material is good to be laid on the kiln car, refractory brick?
Use blankets to suspend ceiling, and modules for wall
Q:how much is the content of the high alumina of refractory brick?
linear change on reheating is small and Slag resistance is good, matte smelting, good thermal shock resistance used refractory materials should be resistant to high temperature: In front of the furnace, the temperature can reach 1800, copper blowing. The maximum temperature in the smelting furnace area is on the top, pyro-refining and electrorefining, magnesia chrome brick, magnesia chrome castable, magnesia alumina brick. The commonly used refractory materials is direct-bonded magnesia-chrome bricks, which has large volume density. manufacturing technique of copper smelting consists of five parts, Clay brick

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