Hoganas India Pvt Ltd. Offers Magnetite in Iron Oxide Form. Hoganas India Pvt Ltd. Has been awarded ISO/TS 16949:2009 certifications. Magnetite in Iron Oxide Form is available with an iron content of about 70% which can be used in many applications. Magnetite in Iron Oxide Form offer several powder grades with different particle sizes from the sub-micron scale up to a few hundred microns.