High Alumina Fireclay Brick (Al2O3 38%) System 1

High Alumina Fireclay Brick (Al2O3 38%)

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Loading Port:: Qingdao

Payment Terms:: TT OR LC

Min Order Qty:: 17 m.t

Supply Capability:: 10000 m.t/month

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General Information
CMAX high alumina firebricks are classified according to alumina content ranging from 48% to 90%.

Feature
Low thermal conductivity
Excellent acid and base slagging resistance
High refractoriness
Excellent thermal shock resistance
Excellent mechanical strength

Application
CMAX high alumina bricks are commonly used in blast furnace, hot blast furnace, the roof of electric furnace, teeming ladle, rotary kiln, regenerator, etc

ITEM	UAL48	UAL55	UAL65	UAL75	UAL80	UAL85	ALP80
Refractoriness, ℃	1750	1770	1790	1790	1810	1810	1810
Apparent Porosity,%	22	22	23	23	20	20	18
C.C.S, Mpa	39	44	49	53	55	60	100
Refractories Under Load (0.2Mpa)，℃	1420	1470	1500	1520	1500	1520	1550
Reheating Linear Change,%	1450℃x2h 0.1～-0.4	1500℃x2h 0.1～-0.4	1500℃x2h 0.1～-0.4	1500℃x2h 0.1～-0.4	1550℃x2h -0.5～+0.5	1550℃x2h -0.5～+0.5	1550℃x2h -0.5～+0.5
Al₂O₃ Content , %	48	55	65	75	80	85	82

Fireclay Brick with Al2O3 content around 38%

Q: Scheme of cement kiln replacing 40 meter refractory brick kiln: If only replace refractory bricks, it just needs three days under the condition of 200 degrees. It will be simpler if there is only free water in the refractory brick (no pouring material).

Q: What are the main components of refractory bricks: The main ingredient of silica brick is monox. there are various materials of refractory bricks, the main component of high alumina brick and clay brick is aluminium, the main ingredient of each kind of material is not the same, the main component of magnesia bricks and magnesia chrome bricks is magnesium oxide

Q: is it correct that the higher the refractoriness is, the better refractory bricks are?: Does not necessarily, it has a great relationship with the compression and bending and corrosion resistance.

Q: How to test the various components of the refractory brick?: If you want to know the chemical?compound components, you can do the analysis of meteorological chromatography, and then testing, if you just want to detect contents of elements, you can do a XRF, but you should smash, grind and homogenize the refractory bricks. The specific operation process is not convenient to describe in detail, that is, X ray diffraction, through X ray fluorescence analysis, you can know that the elements and contents contained in it, if you want to understand its internal structure, you can also do a XRD

Q: Why should the clay bricks be watered first when they are building masonry walls?: Therefore, in order to facilitate the operation, so that the mortar has a suitable hardening and strength growth environment, to ensure the quality of masonry, bricks must be watered before use wet.

Q: Whether the fire bricks are needed to be poured before construction?: Of course, the purpose of watering is to reduce the bricks to absorb water in mortar

Q: What is the density of the high alumina refractory brick?: it depends on the aluminum content, the higher it contains, the larger the density is. the hjghest is 3, the lowest is 2.

Q: Are refractory bricks necessarily needed to build a kitchen stove?: It will be better to use refractory bricks for long term because of its high temperature resistance

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.

Q: Why do some people say that clay brick insulation effect is good, and some people say that bad, in the end what is right?: Now is the best thermal insulation hollow powder briquette, because it is hollow, blocking the heat transfer, plus foam insulation on the outside, good insulation effect,

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