New Ceramic Sand Replace Foundry Chromite Sand for Casting

Ceramic foundry sand also known as fused ceramic, quartz sand is a senior alternative.

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Ceramic foundry sand is a high heat resistance, low thermal expansion, and spherical artificial casting sand obtained by spray treatment of a high oxidizing raw material in a molten state to recrystallize. Dense structure, grain shape is very spherical, smooth surface and small surface area.

Grain shape	Round ball shape
Color	Brown- black
Al2O3	≥ 75%
SiO2	8-12%
Fe2O3	≤ 5%
TiO2	≤ 3.5%
Refractoriness	≤ 1700 degree
Angle factor	≤ 1.1
Thermal expansion	0.13% (10 min at 1000 degree
PH	6.5-7.5
Packing density	1.95-2.05g/cm 3
Size	AFS20, 25, 30, 35, 40, 50, 60, 75, 80, 100, 125, 140, or 0.2~0.6mm, 0.3~0.7mm, 0.4~0.9mm, 0.9~1.25mm, 1~2mm, 200mesh, 325mesh etc.