Chromite sand used in chemical, refractory and foundry factory

     High chromite stuffing sand is mainly made up of imported high pure chromite sand with reasonable particle size distribution, and suit for foundry industry and other refining process.

      the chromite sand is a product of south africa natural chromite ore after crushing and sieving, and its main chemical composition is Cr2O3.

     Chromite sand,it's main chemical composition is Cr2O3(chromic oxide), this kind of sand heating volume is stable, High thermal conductivity, sand molten metal contact, not only has a good  alkali slag resistance, not with iron oxide and other chemical reaction, and itself has the characteristics of solid phase sintering, can well prevent the penetration of molten metal, avoid sand defects, suitable for all kinds of stainless steel, Alloy steel and carbon steel gradually modeling core sand and paint. 

 

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/cm
Sintering point	> 1800C
Melting temperature	2180C