MULLITE 70 & 60  
     
 
 
     
  CHEMICAL COMPOSITION OF MULLITE 70:  
 
Chemical Properties (%wt)
 
Normal
Typical
SiO2
24-27
24.85
Al2O3
70-72
70.58
Fe2O3
1.00 max
0.76
TiO2
2.00 max
1.58
K2O + Na2O
0.30 max
0.16
CaO + MgO
0.40 max
0.25
Physical Properties(% wt)
Bulk density g/cm3
2.80 min
2.87
Moisture
0.30 max
0.10
Apparent Porosity
4.00 max
3.10
Mullite
90.00 min
93.80
Cristobalite
trace
-
Refractoriness, deg C
1800 min
1850
Lump sizes
0-50 mm(2") 90% min
MM sizes
0-1 mm, 1-3 mm, 3-5 mm
Mesh sizes
3×6 mesh, 6×14 mesh, 14×0 mesh, 0-100 mesh, 0-200 mesh, 0- 325 mesh (other mm or mesh sizes available upon request)
Packing
In 1 MT bag, special quantity packing and labeling available
 
     
  CHEMICAL COMPOSITION OF MULLITE 60:  
 
Chemical Properties (% wt)
 
Normal
Typical
SiO2
33-36
35.68
Al2O3
60-63
60.75
Fe2O3
0.90 max
0.72
TiO2
2.00 max
1.59
K2O + Na2O
0.30 max
0.22
CaO + MgO
0.35 max
0.25
Physical Properties(% wt)
Bulk density g/cm3
2.60 min
2.65
Moisture
0.30 max
0.10
Apparent Porosity
3.50 max
2.95
Mullite
85.00 min
90.00
Cristobalite
trace
-
Refractoriness,deg C
1750 min
1790
Lump sizes
0-50 mm(2") 90% min
MM sizes
0-1 mm, 1-3 mm, 3-5 mm
Mesh sizes
3×6 mesh, 6×14 mesh, 14×0 mesh, 0-100 mesh,    0- 200 mesh, 0-325 mesh (other mm or mesh sizes available upon request)
Packing
In 1 MT bag, special quantity packing and labeling available
 
     
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