foundry chromite sand
China [CN] |
Item
|
Index
|
|
Cr2O3
|
≥46.0%
|
|
SiO2
|
≤1.0%
|
|
FeO
|
≤26.5%
|
|
CaO
|
≤0.30%
|
|
MgO
|
≤10.0%
|
|
Al2O3
|
≤15.5%
|
|
P
|
≤0.003%
|
|
S
|
≤0.003%
|
|
Cr/Fe
|
1.55:1
|
|
Bulk Density
|
2.5-3
|
|
Color
|
Black
|
|
PH
|
7-9
|
|
The amount of the acid
|
≤ 2 ML
|
|
Percent soil
|
≤0.1%
|
|
Percent Moisture
|
≤0.1%
|
|
The sintered
|
1600℃
|
|
Percentage of free acid present in the sand
|
0
|
|
filling density
|
2.6g/cm³
|
|
sintering point
|
> 1800°C
|
|
melting temperature
|
2180°C
|
|
Regular size
|
|
|
AFS25-35 AFS30-35 AFS35-40 AFS40-45 AFS45-55 AFS50-55 AFS55-60 AFS60-65 AFS60-70
|
|
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