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Manufacturing Process Typical Properties Mill Lining BlocksGrinding Media
Typical Properties

Material Properties

Units

Steatite
Colour - Off White
Specific Gravity gms/cc 2.7
Water absorption % 0.0
Flexural strength Kg/cm2 1,300
Compressive strength Kg/cm2 8,500
Hardness HV10 520
Coefficient of linear thermal expansion (20°C-1000°C) X10-6/°C 8.5
Safe operating temperature (No Load) °C 1,050
Dielectric strength (20°C)5 mm thick KV/mm 6
Dielectric constant (20°C: 1MHZ) - 6
Dissipation factor 20°C: 1MHZ - 0.0004
Volume resistivity (20°C) Ohm-cm 1013
     
Hardness Comparison
Material   Moh Hardness
Diamond
 
10
Sapphire
 
9
Duralox
 
9
Topaz
 
8
S t e a t i t e
 
7.5
Quartz
 
7
Tool steel
 
6.5
Silica
 
6.0
Glass
 
5.5
Carbon Steel
 
5.5
Limestone
 
3.4
Copper
 
3
Gypsum
 
2
Talc
 
1
     
Chemical Properties
SiO2
:
61.50%
MgO
:
27.40%
BaO
:
3.20%
AL2O3
:
6.80%
Fe2O3
:
0.50%
Na2O
:
0.10%
CaO
:
0.50%
 
         
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