Precision Foundry Sand、Foundry Sand、Foundry Flour

Brand/Item

Precision

Foundy Sand

Foundry Sand,Foundry Flour

SiO₂%

50~52

50~52

Al₂O₃%

≥43

≥43

Fe₂O₃%

≤1.2

≤1.2

TiO₂ %

≤0.6

≤0.6

CaO+MgO%

<0.5

<0.5

K₂O+Na₂O%

<0.4

<0.4

Refractoriness℃

≥1730

≥1730

Bulk Density g/m³

≥2.45

Burn reduction %1.0.I

≤0.25

The Amount of powder containing stand %

0.3

Hardness Mohs

7~8

7~8

The Value of PH

6~8

6~8

Grain Size

80~120 mesh

10~16 mesh, 16~30 mesh, 30~60 mesh, 200 mesh, 270 mesh, 325 mesh, etc., can be processed according to requirements