Corrotech / Products / Blasting technology / Abrasive blasting / Abrasives for blasting / Aluminium oxide / Artificial brown corundum – alumina (fraction F 12 – F 220)

Artificial brown corundum – alumina (fraction F 12 – F 220)

Product Number

CTHK-F12

CTHK-F16

CTHK-F22

CTHK-F24

CTHK-F30

CTHK-F36

CTHK-F40

CTHK-F46

CTHK-F54

CTHK-F60

CTHK-F70

CTHK-F80

CTHK-F90

CTHK-F100

CTHK-F120

CTHK-F150

CTHK-F180

CTHK-F220

Fraction

Variants

25 kg PE pytel 1 t na EURO paletě 1 t Big bag

Detailed description

Brown corundum is mainly used as a recyclable abrasive in blasting boxes. Due to its low iron oxide content, it is often used in blasting applications where iron contamination is not allowed on non-ferrous metal substrates. Brown corundum is a very hard and sharp abrasive that quickly cleans the substrate. After blasting, it leaves an anchor profile and is suitable for removing scale, rust and old paint.

Brown corundum grains have the necessary hardness, abrasive properties and are suitable as an abrasive for surface preparation. FEPA grading abrasive grains are used for the production of abrasive tools and abrasives for blasting. Brown corundum is produced by burning bauxite in induction furnaces at a temperature of 1600 °C. After the 5-tonne block cools, the brown corundum is crushed and sorted. The raw material is prepared for the sorting line by a cascade of cylindrical and jaw crushers. On the sorting line, the grain is sorted and shaped according to customer requirements.

Technical data

Colour: Brown

The shape of the grain: square

Structure: aplha alumina

Hardness: 9 Mohs

Typical hardness: 2 000 kg/mm2 according to the Knoop hardness scale

Absolute density: 3,9 - 4,1 g/cm3

Quality: FEPA Standard 42-1:2006 (EN) F 4 - F 220