Nozzle Filing Compound (NFC)

Cr₂O₃35 to 40%
SiO₂20 to 25%
Fe₂O₃6.1 to 9.0%
Al₂O₃6 to 10%
MgO1.8 to 5 %
FCless than 1.0%
Moisture- Less than 0.50%, Bulk Density – 2.5-3gm/cc (Max %) Grain Size-0.5 to 1.5 mm Deviation ±1% Physical Shape- Round