Abstract
In-mold electro-magnetic stirrers (M-EMS) have been installed at many plants for improvement of surface and innerr quality of continuously cast strands, but applications of M-EMS to small billet casters are comparatively few. M-EMS's have been installed at the billet continuous caster at Funamachi Works in March 1983. The introduction of M-EMS has contributed greatly on the decrease of surface pinholes and longitudinal corner cracks, and the increase of equiaxed crystal zone of 135mm square billets for bars and wire rods.