south african chromite sand AFS FOUNDRY GRADE IN CHINA
south african chromite sand AFS FOUNDRY GRADE IN CHINA
south african chromite sand AFS FOUNDRY GRADE IN CHINA
south african chromite sand AFS FOUNDRY GRADE IN CHINA
south african chromite sand AFS FOUNDRY GRADE IN CHINA
south african chromite sand AFS FOUNDRY GRADE IN CHINA
south african chromite sand AFS FOUNDRY GRADE IN CHINA

south african chromite sand AFS FOUNDRY GRADE IN CHINA

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Price:$380.00 - $400.00

Quantity:


Product Overview

Description


South African chromite sand priceports of South African the raw material sand AFS40-



Product Description


The main chemical composition of chromite sand is cr2o3, which has the characteristics of stable volume and high thermal conductivity when the sand is heated.Contact with the molten metal, it not only has good resistance to basic slag, not with ferric oxide and other chemical reactions, and itself has the characteristics of the solid phase sintering, this can be a very good prevent the infiltration of molten metal, avoid to touch sand defects, suitable for all kinds of stainless steel, alloy steel and carbon steel gradually shape the original sand core and coating


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Available Sizes: 


AFS25-30 AFS30-35 AFS25-35 AFS35-40 AFS40-45 AFS45-50 AFS50-55 AFS55-60 AFS60-65


100#  200#  300# 325# 400#


 


Physical and Chemical index of AFS40-45 chromite sand















































































































Item



Unit



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



g/cm³



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 



g/cm³



2.6



sintering point



°C



> 1,800



melting temperature 



°C



2,180



 



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