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Refractory grade Magnesite

Magnesite ore is mined and classified then purified and calcined to provide the raw material for refractory grade magnesite products.

Your contact for 

Vicky Yates

Sales Manager, Refractory Minerals & Olivine
refractory grade magnesite different grades

Sa Magnesite is a natural ore identified as a magnesium carbonate, occurring as a primary mineral in igneous and sedimentary rocks. LKAB Minerals offer a range of Magnesites including Dead Burnt Magnesite, SKLS Magnesite and Nedmag Magnesia for a number of refractory applications.

Dead Burnt Magnesite is made by calcining the magnesite ore in a rotary kiln to produce a high purity product that has high purity, is stable and has good sintering properties.

SKLS Magnesite, also known as Periclase, is made using a calcination and seawater process.

Nedmag 99 is a high purity synthetic Dead Burned Magnesia produced by Nedmag Industries. It has a magnesia content of 99% min.

Refractory grade Magnesite applications

  • Man standing in large brick kiln

    Magnesite in refractories

    Due to their magnesia contents, our Magnesite materials are utilised in general and exacting refractory applications including:

    • MagCarbon Bricks
    • MagSpinel Bricks
    • Magnesite Bricks
    • MagDolomite Bricks
    • Refractory Specialities

Refractory grade magnesite standard grades

  • 5-8mm (-8+5mm)
  • 3-5mm (-5+3mm)
  • 1-3mm (-3+1mm)
  • 0-1mm (-1mm)
  • 0-250μm (-60#)
  • 0-150μm (-100#)
  • 0-15μm (-200#)

Other grades are available on request, please contact your representative for further information.

Refractory grade magnesite packaging

Our magnesite materials are available in 25kg paper sacks, 1000kg bulk bags or as bulk as standard.

The typical properties of Refractory grade Magnesite are:

Physical properties of Refractory grade Magnesite

Bulk density [g/m³] >2.45
Total moisture [%] <0.50
App. Porosity [cm³s²] <8.0

Chemical properties of Refractory grade Magnesite

  Dead Burnt Magnesite SKLS Magnesite Nedmag 99 Magnesia
MgO [%] 95.82 97.20 98.50
Al2O3 [%] 0.24 0.07 0.06
SiO2 [%] 1.48 0.25 0.13
Fe2O3 [%] 0.80 0.20 0.48

Refractory grade magnesite origins

The origins of our magnesite materials are as follows:

  • SKLS Magnesite - originates from Ireland.
  • Dead Burnt (DB) Magnesite - originates from the Liaoning province in China.
  • Nedmag 99 Magnesia - sourced from the Netherlands.

Refractory grade magnesite toxicology

Magnesite products are inert and non-toxic. Click on the links opposite to download the Material Safety Datasheets.


Interested in what Refractory grade Magnesite can do for you?

Start by selecting your country to get the right contact person

My name is Vicky Yates and I'm a Refractory grade Magnesite product expert located in United Kingdom.

If you are interested in what this product can do for you, please give me a call or send me a message.

Office +44 1724 273601
Mobile +44 7748 113307

Call during business hours

09:00 AM - 17:00 PM

Local time in United Kingdom is 02:36 AM (UTC +0)

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