Neutral Ramming Mass

Neutral Ramming Mass is a high alumina mix predominant aggregate, component of alumina imparts a strong skeleton aggregate structure of

o Superior uniform heat stability
o Ability to withstand corrosive-erosive attack of molten metals and their acids
o Excellent volume stability
o Superior structure heat stability
o Low apparent porosity
o Strong abrasion resistance Matrix

Neutral Ramming Mass

Physical Properties
Grain Size (mm) 0 – 4
Density (gm/cc) 3.0
Initial sinter temperature (0C) 1260
Final sinter temperature (0C) 1650
Maximum use temperature (0C) 1750
Chemical Properties
Al2O2 (%) 82 – 86
MgO (%) 12 – 16
SiO2 (% max) 1

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