Refractory Bricks
Corundum quality wear-resisting refractory castable

Corundum quality wear-resisting refractory castable

Quality corundum wear-resisting refractory castable
Wearable corundum refractory castable uses aggregate of fused cast white corundum, compact fused corundum and brown corundum or vice white corundum, mixed with superfine powder, lt high efficient water reducing agent. It has the features of good fluidity and being convenient for construction. It is an ideal high temp and wears proof lining material of some thermal equipment such as circulation bed boiler and rotary kiln.
Features:
1. High strength at both low and high temp;
2. Excellent wear resistance;
3. Thermal shock resistance,;
4. Anti-peeling off capability;
5. Stable volume at high temperature, long service life.

Brands                      Items

DNMJ-90

DNMJ-85

DNMJ-80



Al2O3    %                                  not less than

90

85

55


Fe2O3  %                                 not more than

0.2

0.5

6.0


PLC 1450×2h %

±0.1

±0.1

±0.1


BD (g/cm3)                                  not less than

3.13.15

3.03.1

2.93.0


AP  %                                    not more than

18

19

20


TC W/m.k                                 not more than

1.8

1.8

1.5


Refractoriness                             not less than

1790

1790

1770


CCS Mpa           not less than

110×24h  After drying

100

80

70


1000×3h After burning

120

100

90


1500×3h After burning

150

120

100


MOR Mpa          not less than

110×24h  After drying

14

12

11


1000×3h After burning

16

15

12


1500×3h After burning

20

18

15


TSR(1100 water-cooling)                             not less than

 

 

25


CC                                               not less than

5

5.5

6


 


 

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