In order to reduce the raw material cost of tundish coating, the effect of 1~3 mm forsterite particles partly replacing magnesia particles on the properties of tundish coating was studied by using forsterite particles as aggregate.The results showd that the coating prepared with 10% forsterite particles (1 ~3 mm) instead of magnesia particles is more suitable as a substitute for magnesia coating in tundish.The strength of the samples with 5% waste magnesia-chrome brick particles changed little, and the high-temperature properties decreased.

Forsterite, Magnesia, Magnesia-chrome brick, Tundish coating