Brown Fused Alumina – NK

Brown Fused Alumina belongs to the group of electro-corundum. It is produced by controlled melting of calcined bauxite in an electric arc furnace. Brown fused alumina is iron-free and extremely tough.

Applications:

Reusable abrasive
Grinding, lapping and polishing medium
Ceramic grinding wheels and grinding media
Wear-resistant and refractory products

Blasting systems:

Pressure blast systems
Injection blast cabinets

Typical physical properties
Hardness	9 mohs
Grain shape	angular
Melting point	approx. 1950 °C
Specific gravity	approx. 3,9 – 4,1 g/cm³
Bulk density (depending on granular size)	approx. 1,5 – 2,1 g/cm³

Typical chemical analysis
Al₂O₃	95,65 %
TiO₂	2,42 %
Fe₂O₃	0,12 %
SiO₂	0,92 %
CaO	0,35 %
MgO	0,22 %

Packaging
25 kg bags on pallet up to 1 ton
1 ton loose in big bag

Available granulations
Metric	Average grain size (mm)
	0,06 - 0,12
	0,12 - 0,25
	0,25 - 0,50
	0,50 - 1,00
	1,00 - 2,00
	1,00 - 3,00

Available sizes
FEPA	Average grain size (μm)
F 008	2000 – 2800
F 010	1700 – 2360
F 012	1400 – 2000
F 014	1180 – 1700
F 016	1000 – 1400
F 020	850 – 1180
F 022	710 – 1000
F 024	600 – 850
F 030	500 – 710
F 036	425 – 600
F 040	355 – 500
F 046	300 – 425
F 054	250 – 355
F 060	212 – 300
F 070	180 – 250
F 080	150 – 212
F 090	125 – 180
F 100	106 – 150
F 120	90 – 125
F 150	63 – 106
F 180	63 – 90
F 220	53 – 75
Other grain sizes can be produced if required.

Product data sheets & Safety data sheets (PDF):

Product data sheets

Safety data sheets

Brown Fused Alumina – NK

Applications:

Blasting systems:

Other grain sizes can be produced if required.

Product data sheets & Safety data sheets (PDF):