Olivine

Olivine sand is foundry sand with low thermal expansivity. It is used for the preparation of forming mixtures in the foundry industry taking into consideration surface quality and castings properties.

One of the most used is INCASR LE50 olivine sand.

Chemical composition

MgO                     49.7%
SiO2                     41.3%
Fe2O3                    7.3%
Cr2O3                    0.29%
Al2O3                     0.47%
NiO                         0.32%
MnO                        0.09%

Grain size analysis (mm %)

0.710                0.0
0.50                  0.0
0.355             16.3
0.250             51.2
0.180             24.5
0.125               6.1
0.090               1.4
0.063               0.4

Annealing loss max. 0.75%

Any volume can be supplied from min. 1,2 t.