In order to obtain good sintering performance,it is important to understand sintering properties of iron ores.Sintering properties including chemical composition,granulation and high-temperature behaviors of ores from China,Brazil and Australia.Furthermore,several indices were defined to evaluate sintering properties of iron ores.The results show that:for chemical composition,Brazilian ores present high TFe,low SiO2,and low Al2O3 content.For granulation,particle diameter ratio of Brazilian ores are high;particle intermediate fraction of Chinese concentrates are low;and average particle size and clay type index of Australian ores are high.For high-temperature properties,ores from China,Brazil and Australia present different characteristics.Ores from different origins should be mixed together to obtain good high-temperature properties.According to the analysis of each ore’s sintering properties,an ore blending scheme(Chinese concentrates 20%+Brazilian ores 40%+Australian ores 40%) was suggested.Moreover,sinter pot test using blending mix was performed,and the results indicated that the ore blending scheme led to good sintering performance and sinter quality.