Chromite

Mineral: Chromite

Chromite is a mineral that is an iron chrome oxide. It has a chemical formula of FeCr₂O₄.

The main constituent of Portalum A25 is Corundum. The material is produced from refractory agglomerated super calcined bauxite.

Corundum is a crystaline off-colour Aluminium Oxide, characterised by:

• High inertness in various media
• Excellent thermal stability
• High density and, as a result, low oil absorption
• High Mohs hardness of 5.5
• High Refractive Index between 2.08 and 2.16

 

Basic properties

Property	B	Unit
Hardness (Mohs)	5.5	[-]
Density

 

Product overview

Grade	+ 45 µm	D50 [µm]	D97 [µm]
Portachrom  A38	9	10	65

 

Production location: Balaruc (FR), Geertruidenberg (NL)

Functionality: Provides good heat conductivity to prevent brake from overheating