Olivine Sand Foundry Grade Chemical Composition: Mgo 45% Min

Typical Chemical Specifications :

MgO SiO2 Fe2O3 Al2O3 CaO LOI
Grade 1 45-48% 39-41% 7-9% 0.5-1% 0.2-0.3% 1.5% Max
Grade 2 43-44% 39-40% 9-10% 0.5-1% 0.5-0.8% 2.5% Max
Grade 3 40-42% 40-42% 10-12% 0.5-1% 0.5-0.8% 4% Max

Typical Physical Properties :


Melting Point (A C) : 1750
Bulk Density, Loose (g/cm3) : 1.7-1.8
Thermal Expansion (in./in.) : 0.0083
Thermal Conductivity @1000A C (cal/s-cm -A C) : 0.0025
Mohs Hardness @20A C : 7
pH @25A C : Basic
Free Silica Content (%) : <0.1
Specific Gravity (g/cc) : 3.2-3.4

Available Sizes for EBT Filler Application :

3-6 mm, 3-7 mm, 3-8 mm, 4-8 mm, 6-10 mm

Available Sizes for Foundry Applications :

AFS 30-40, AFS 40-50, AFS 50-60, AFS 90-100, AFS 120