With MgO as main composition, the magnesium powder is made from the sinter cakes of natural magnesite (MgCO3) calcined at 1550-1600℃through, crashing, grinding and magnetic separation. It is the best choice for refractory material of coatings of alkaline castings. The Company also produces the fused magnesium powder.
Physicochemical indexes of magnesium sand and powder (%):

Physicochemical indexes of fused magnesium powder (%):

Common granularity: 200mesh, 320mesh.