MagnaDense, used mainly as loose ballast or as aggregate for high density concrete, is a high quality and dense aggregate manufactured from natural Magnetite.

LKAB Minerals supplies MagnaDense from owned Magnetite resources, ensuring long-term availability and consistent quality. 

MagnaDense is available in different grades

MagnaDense product uses

Depending on your specific application, you will find that MagnaDense can bring you different advantages such as:

  • Increased weight and/or density
  • Reduced volumes
  • Reduced heat of hydration
  • High submerged / saturated density
  • High radiation shielding characteristics
  • Space saving
  • Noise and vibration dampening
  • Thermal energy storage

MagnaDense as an aggregate for heavy concrete

When you need heavy concrete with densities of up to 4.0 t/m3, you can certainly use MagnaDense. The high density concrete can be produced and placed using standard equipment.

Well-known applications for heavy concrete are:

MagnaDense loose ballast applications

With its high density MagnaDense is often used as loose ballast. Typical applications are:

MagnaDense for ballast in offshore platforms

Special applications for MagnaDense

Besides the above mentioned applications that use MagnaDense as a loose ballast or to produce heavy concrete, there is another niche application for MagnaDense:

LKAB Minerals wants to support innovation, therefore our R&D department is always working on identifying new products and application that can benefit from the unique properties of MagnaDense.

MagnaDense properties

All specifications for our iron oxide products vary due to customising for different applications.

Fe (%) 62.0 - 71.7
Fe3O4 (%) 86 - 99
Specific gravity (t/m3) 4.6 - 5.1
Bulk density (t/m3) 2 - 4

The high density of MagnaDense results in a decreased volume for a given weight, or alternatively an increased weight per given volume, offering a better overall economy for specific projects.

  • Particle density range: 4.7 – 5.2 t/m3
  • Concrete density range: 2.4 – 4.0 t/m3
  • Complies with EN 12620; MagnaDense complies with European requirements for aggregates to be used in concrete.
  • CE-marking

MagnaDense standard grades

MagnaDense is available in coarse and fine grades as well as mixtures of these grades and complies with requirements of EN 12620. Top sizes for our dense product ranges from 0.5mm to 20mm. Each grade has a controlled particle size distribution and has been designed to ensure the heavy dense aggregate fits your application.

Select your country in the expert box on this page (top right) to request MagnaDense detailed data.Contact your regional sales manager for MagnaDense data sheets and product definitions

MagnaDense packaging

We can deliver MagnaDense in bulk or bags by:

  • Ship
  • Barge
  • Container
  • Train
  • Individual truckload

We are part of the international LKAB Group. LKAB Minerals has 13 different sites across the world where local knowledge is available. Most locations have their own storage facilities and can therefore supply you on-time and economically, all year-round the best quality MagnaDense.

MagnaDense mineral origin

LKAB Minerals’ MagnaDense is manufactured from the natural mineral Magnetite which is mined in our own group resources. The LKAB mines are located in Kiruna and Malmberget in the northern part of Sweden.

MagnaDense toxicology

The product is harmless to the environment, non-toxic in all its forms and a sustainable materials. It can be recyclable after use as was demonstrated with the recovered MagnaDense from the Draugen Offshore Platform.

You can download the Safety Data Sheet in the section on the right hand side for further information.

Please contact us for detailed data on a single grade or further information on our MagnaDense product range. You can find our sales contact by choosing your country in the upper right expert box of this page. Call or email your local contact person and discuss your needs for your next project.

LKAB Minerals supplies MagnaDense worldwide and year-round

Product expert

Bo Öhman
Sales Manager Magnetite

Ask me a question. Contact information.

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