Chrome Alumina

Chrome Alumina is produced by fusing high purity calcined alumina and chromium oxide. The end product has excellent hardness and resistance properties.

Chrome Alumina product uses

Refractory

Applications include the manufacture of furnace & ladle refractories and abrasive grinding wheels; chrome alumina is a valuable product for these applications due to its high erosion resistance properties.

High Friction Surfacing

Within the road surfacing industry this product is used as a decorative high friction aggregate for both indoor and outdoor flooring applications.  

LKAB Minerals Chrome Alumina

Chrome Alumina properties

The typical chemical composition of Chrome Alumina is shown below:

Chemical properties

Al2O3 (%) 83.06
MgO (%) 13.54
SiO2 (%) 2.08
Fe2O3 (%) 0.94

To find out more, please speak to your local sales representative using the contact area above.

Chrome Alumina grades

LKAB Minerals Chrome Alumina is available in the following grades as standard:

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

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

Recycled alumina materials

Alongside our range of virgin alumina materials, LKAB Minerals offer a range of recycled aluminas. To read more about our range of recycled materials, click here.

Chrome Alumina packaging

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

Chrome Alumina origins

Chrome Alumina is formed from the manufacture of chromium metal by the aluminothermic process.

Related products

  1. Magnesia recycled materials
    • LKAB Minerals offer a portfolio of magnesia based recycled refractory materials, sourced and processed at our own sites in the UK and Netherlands.

      More on Magnesia recycled materials
  2. Fused Alumina
    • Alumina (also known as Corundum or Aluminium Oxide) is the family name for inorganic compounds with the chemical formula Al2O3. Fused Alumina is made in electric arc furnace by passing a current between vertical carbon electrodes. The heat generated from this procedure melts the alumina feedstock.

      More on Fused Alumina
  3. Chrome Alumina
    • Chrome Alumina is produced by fusing high purity calcined alumina and chromium oxide. The end product has excellent hardness and resistance properties.

      More on Chrome Alumina
  4. Mulcoa
    • Mulcoa is a high mullite chamotte produced by calcining low alkali clays for consistant quality and chemistry.

      More on Mulcoa
  5. SKLS Magnesite
  6. Sarca Chamotte
  7. Mullite
    • Mullite is the mineralogical name given to the only chemically stable intermediate phase in the SiO2 - Al2O3 system. It is a high alumino-silicate produced by calcining low alkali clays in a rotary kiln.

      More on Mullite
  8. Brown Fused Alumina
    • Brown Fused Alumina is a dense material produced from bauxite raw material which is fused in an electric arc furnace. This product is from a high quality consistent Chinese source. The end product has a low iron content making it particularly valuable in refractory applications.

      More on Brown Fused Alumina
  9. Refractory grade Magnesite
    • Magnesite is a natural ore identified as a magnesium carbonate, occurring as a primary mineral in igneous and sedimentary rocks. The magnesite ore is mined and classified; this material is then purified and calcined to provide the raw material for refractory grade magnesite products.

      More on Refractory grade Magnesite
  10. Bauxite
    • LKAB Minerals process and supply a range of refractory grade Bauxites. The majority of global bauxite ore is used in the production of aluminium metals. However, refractory bauxite is the ore calcined at 1600 - 1650°C which produces a dense, high purity, stable aggregate.

      More on Bauxite
  11. Calcined Kaolin
    • Calcined Kaolin is an aluminosilicate material produced by heating natural kaolin to high temperatures in a kiln. This calcination process ensures consistent chemical and physical properties, making it ideal for refractory applications.

      More on Calcined Kaolin
  12. Nedmag
    • Nedmag 99 is a high purity synthetic Dead Burned Magnesia produced by Nedmag Industries.

      More on Nedmag
  13. Olivine
    • Olivine is a naturally occurring mineral magnesium iron silicate sourced from Norway with a high melting point and density.

      More on Olivine
  14. Molybdenum
    • Molybdenum is a silvery-white metal with one of the highest melting points of any element and has one of the lowest coefficients of thermal expansion amongst metals. Its name is derived from the Greek word “molybdos”, meaning lead.

      More on Molybdenum

Product expert

Vicky Yates
Sales Manager, Refractory Minerals & Olivine

Ask me a question. Contact information.

Products