Chromite sand 46 percent and above

Chromite sand 46 percent and above

Chromite sand is a naturally occurring spinel consisting primarily of the oxides of chrome and iron. It is a by-product of ferro-chrome production and is mainly used in foundry applications and in glass production.

PHYSICAL PROPERTIES(TYPICAL)               

PH                              7-9                  

Color                            Black                        

Acid Amount                    ≤2ml                                               

Soil%                          ≤0.1                    

Bulk Density                2.5-3.0g/cm³             

Specific Gravity             4.0-4.8g/cm3        

Moisture                       ≤0.1%          

Sintered temperature            ≥1800℃        

Free Acid                           0       

Filling density                  2.6g/cm3  

Melting temperature            ≥2180℃

AVERAGE CHEMICAL COMPOSITION(TYPICAL)   

Cr2O3                   ≥46.0%      

SiO₂                    ≤1.0%    

 Fe₂O₃                 ≤26.5%

CaO                    ≤0.30%    

MgO                                ≤10.0%

Al2O3                               ≤15.5%

P                                  ≤0.003%

S                                  ≤0.003%

Cr/Fe                                 1.55:1

MAIN APPLICATIONS:

Chromite Sand in the foundry industry

Its properties enable the material to be used in high duty grey iron and steel foundries as core and mould

making sand. Its high thermal conductivity gives it good chilling properties, low thermal expansion gives rise to good dimensional stability. Its basicity being close to neutral allows the use of a wide range of resin

bonding systems and inorganic binders, it has a high refractoriness and a broad sieve distribution.

Chromite Sand in the steel industry

In steel production, Chromite Sand is used as well filler for protection of the sliding gate in large steel holding ladles.

Chromite Sand in the glass industry

When ground to a fine flour, Chromite Sand is used for the production of green glass beverage containers.

USUAL PRODUCTION SIZES

AFS15-25  AFS25-30  AFS30-35  AFS35-40  AFS40-45  AFS45-50  AFS45-55  AFS55-60  AFS60-70  200MESH  325MESH  380MESH  400MESH

PACKAGING:1MT big bag