Mullite Bricks for Blast Furnaces

 
Properties: 
 
Mullite bricks for blast furnaces were made from fused or sintered mullite£¬being high pressure pressed and sintered in high temperature£¬main minerals are mullite stone£®These products have the peoperties of low porosity,high RUL,excellent creep result and anit chemical erosions.They were used as super grade refractory materials for hot blast stoves as well as one of the ceramic cup materials for large blast furmaces.
 
 
 
 
 
 
 
 
 
 
 
Specification:
Item
Mullite  bricks
       Sillimanite bricks
Compound brown corundum bricks
Al203, %                    min
70
55
75
Fe2O3, %                  max
0.8
1.5
SiC, 10
Refractoriness  ”ę          min
1800
1800
1800
RUL          ”ę                  min
1650
1550
1700
P.L.C.       %          1500”ę X 2h
0-0.4
0-0.4
”Ą0.2
A.P.   %                           max
18
17
18
CCS       MPa                  min
100
80
80
Thermal Shock Resistance (water cooling)
 
 
25