This new developed specific Foundry Sand is produced from the special selected high quality refractory raw material at very high temperature at 2,300 – 2,500℃. Our these ACFS sand has excellent solid cores with high strength and very low resin addition rates. The materials has excellent crystalline with formula is 5Al2O3-SiO2.

Application：

Shell moulds and cores for casting gray, Malleable and nodular cast iron, alloyed steel and carbon steel, non-ferrous metals, etc.

The Main Advantage

* Stabe quality on the chemical composition

* Perfect grain round shape and various grain sizes

* High gas permeability

* High temperature resistance

* Good break down and fast curing and good release

SiO₂

5– 15%

Al₂O₃

75–85%

Fe₂O₃

5%min

TiO₂

5%min

MgO

0.5%min

K₂O

0.5%min

CaO

0.5%min

Grain shape

Perfect round ball shape

Color

Brown-Black

Angle index

1 .1 max

Size rang

0.075 – 2.0 mm(AFS 40 – AFS 130)

Loose Bulk Density

1.9 – 2.1 g/cm3

Refractoriness

2050℃

Liner thermal expansion

(200℃ - 1000℃) 5×10-6/℃