Refractory Brick

Low Creep Refractory Brick

1. High refractoriness

2. High refractoriness under load

3. Excellent slag resistance



Product Details


Low Creep Refractory Brick Introduction


Low creep high alumina brick for blast furnace is made of corundum, mullite “sillimanite, andalusite and kyanite” and high quality bauxite clinker as raw material by shaping at high pressure and sintering at high temperature.


Low Creep Refractory Brick Application

 

The main markets for low creep high alumina brick are building lining of hot-blast stove, blast furnace, coke oven, rotary kilns of cement and so on. 



Low Creep Fireclay Brick, Low Porosity Fireclay Brick, Special High Alumina Brick, Special Andalusite Brick




Items

Low creep fireclay brick

Low porosity fireclay brick

Special high alumina brick

Special andalusite brick

Chemical composition

Al2O3  %

42-53

≥42

≥58

55-60

Fe2O3 %       ≤

1.6

2.0

1.5

1.2

CaO+MgO %  ≤

0.7

0.7

0.7

0.4

Na2O+K2O %  ≤

0.8

0.8

0.8

0.5

Bulk density g/cm3  ≥

2.2

2.2

2.45

2.25

Apparent porosity %≤

19

17

20

18

CCS Mpa          ≥

40

40

50

60

0.2MpaRUL T0.6 ºC≥

1450

1450

1600

1600

% Creep rate 1280ºC,25h, 0.2Mpa                   ≤

0.4

--

0.4

0.2

MOR Mpa ≥

1200ºC

10

--

--

12

1350ºC

4

--

6

6

20-1000ºC    Thermal expansion %        ≤

0.7

0.7

0.7

0.6

Refractoriness ºC    ≥

-

-

-

1790

P.L.C 1500ºC*2h

-

-

-

-0.1-+0.1

T.S.R 1100ºCwater cooling -cycle              ≥

-

-

-

35