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Scrubbed Sand
 With the clean deep underground water as the water source Scrubbed sand for foundry is processed by 6 times washing and rubbing the raw sand, 3 times removing clay and screening by grade. Characterized by high silica content, clean surface, circular and homogenous grain, low clay content, it is the best material of the resin sand for steel, iron and non-ferrous castings.
Scrubbed Sand Property
Group Code |
Radius |
Chemical Composition（%） |
Clay |
L.O.I |
ADV |
Sintering Point |
Angle Coefficient |
Concen-tration |
/cm² |
Mm |
SIO2 |
AI2O3 |
Fe2O3 |
K2O+Na2O |
CaO+MgO |
% |
% |
ml |
℃ |
|
% |
30/50 |
0.3-0.6 |
≥96 |
<3.0 |
<0.20 |
<1.50 |
<0.30 |
<0.30 |
≤0.30 |
≤4.0 |
>1700 |
1.15 |
>90 |
40/70 |
0.21-0.43 |
≥96 |
<3.0 |
<0.20 |
<1.50 |
<0.30 |
<0.30 |
≤0.30 |
≤4.0 |
>1700 |
1.15 |
>90 |
50/100 |
0.30-0.15 |
≥96 |
<3.0 |
<0.20 |
<1.50 |
<0.30 |
<0.30 |
≤0.30 |
≤4.0 |
>1700 |
1.15 |
>90 |
70/140 |
0.21-0.11 |
≥96 |
<3.0 |
<0.20 |
<1.50 |
<0.30 |
<0.30 |
≤0.30 |
≤4.0 |
>1700 |
1.15 |
>90 |
140/70 |
0.11-0.21 |
≥96 |
<3.0 |
<0.20 |
<1.50 |
<0.30 |
<0.30 |
≤0.30 |
≤4.0 |
>1700 |
1.15 |
>90 |
100/200 |
0.075-0.15 |
≥96 |
<3.0 |
<0.20 |
<1.50 |
<0.30 |
<0.30 |
≤0.30 |
≤4.0 |
>1700 |
1.15 |
>90 |
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