Chromite sand has established mounting awareness for several years, as a very effective moulding material for a multiplicity of different reasons:

Low thermal expansion.

High thermal conductivity.

Good refractoriness.

Efficient Substitute of Zircon Sand.

General Description

Chrome Spinel Sand

Appearance and odour

Chromite is a black sandy odourless material, which is free flowing when dry. It is insoluble in water and any common organic solvents

Typical Specification

Chromium as Cr2O3 = 45% min. Typical 46%
Fe2O3 = 25% max. Typical 24%
Al2O3 = 12% max.
SiO2 < 1% max., Typical = 0.8%
MgO = 10% – 12%, Typical 10%
TiO2 = 0.60.
Cr : Fe Ratio : 1:55:1.

AVAILABLE SIZES:

AFS 25-35 AFS25-30 AFS30-35 AFS35-40 AFS40-45 AFS40-50 AFS45-55 AFS45-50 AFS50-55 AFS55-60 AFS60-65 0-1mm 200mesh 300mesh 400mesh

APPLICATIONS

Chromite Sand in the foundry industry

Its properties enable the material to be used in high duty grey iron and steel foundries as core and mould making sand. Its high thermal conductivity gives it good chilling properties, low thermal expansion gives rise to good dimensional stability. Its basicity being close to neutral allows the use of a wide range of resin bonding systems and inorganic binders, it has a high refractoriness and a broad sieve distribution.

Chromite Sand in the steel industry

In steel production, Chromite Sand is used as well filler for protection of the sliding gate in large steel holding ladles.

Chromite Sand in the glass industry

When ground to a fine flour, Chromite Sand is used for the production of green glass beverage containers.