SiO269-74.5%
Al2O311-15%
Fe2O30.5-1.9%
Na2O1.8-3.0%
K2O3.5-4.5%
CaO1.0-2.0%
Product TypeRaw Ore
Primary ColorGray
Mesh Size10-16
MaterialVolcanic glass
FormGranular
Water ContentHigh
ColorBeige
Size40-100mm
MaterialPerlite Ore
FormUnexpanded
ApplicationFoundry
FeaturesFast slag removal No furnace damage Increased yield Cost reduction Safe handling High performance Stable quality
SiO2 (%)72.59
Al2O3 (%)12.63
K2O (%)4.74
Na2O (%)3.45
Specific Gravity2.26
Hardness (HV)648
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