The grain behaviour in 70/30 brass plate at high temperatures was investigated by means of the rapid-heating method, and its applicability to controlling the grain size was also considered. It was observed that the effects of impurities, rolling reduction and ready-to-finish grain size were much reduced than in the case of the ordinary batch-annealing method at lower temperatures. The non-uniform mixed grain size observable sometimes at lower temperatures could be avoided, and the scale formation by oxidation was comparatively slight. However, it should be noted that the material slightly cold-rolled showed a grain growth although no recrystallization could be observed
