NorZon® Alumina Zirconia (40%) - NZ Alundum

Download: Technical Data Sheet | Safety Data Sheet (SDS)


NZ Alundum /Aluminum Zirconia (40%) is a hard, very tough, sharp abrasive. It is produced by fusing zircon sand and alumina at about 1900°C.


NorZon® is used for both coated abrasive products and organic bonded grinding wheels.

Typical Chemical Analysis:

Aluminum Oxide (Al2O3)60.0%
Zirconium Oxide (ZrO2)39.0%
Titanium Dioxide (TiO2)0.25%
Silicon Dioxide (SiO2)0.35%
Iron Oxide (Fe2O3)0.25%
Sodium Oxide (Na2O)0.03%
Calcium Oxide (CaO)0.09%
Magnesium Oxide (MgO)0.02%

Physical Characteristics:

Crystal Size:12 Microns
True Density:4.60 g/cm3
Hardness:Knoop 1600, Mohs 9.0
Melting Point:1900°C
Loose Pack Density:1.90 – 2.30 g/cm3
Bulk Density Range:126 – 146 lbs/ft3

ANSI Test Methods:

Bulk Density:B74.4

Packaging & Shipping:

Warehousing in Bluffton, SC and Niagara Falls, NY
400 lb. fiber drums (grade sizes 8 – 120)
2000 lb. supersacks
Plastic pails, etc. for a surcharge (SC only)

Supplier of abrasive grains and ceramic materials Supplier of abrasive grains and ceramic materials