Abstract:  In order to alleviate the shortage of low-ash and low-sulfur coking coal and fat coal resources and stabilize the production of coke，our company introduced coking coal and fat coal from North America，carried out studies on individual kind of coal quality related to cokemaking characteristics， coal blending test，and analyzed correlation between blended coal quality and coke quality. The study results show that North American coking coal and fat coal are characterized with high quality behaviors，such as low ash and low sulfur，but with worse thermal properties（CRI & CSR）than those of similar coals in China. The indicators of volatile，caking index and ash contents of blended coal in the coal blending composition have a high linear fitting degree about 0.80 with the mechanical strength and thermal properties of coke. After coal blending optimization，8%～12% of North American coking coal or fat coal can be used in 7 m top-charge battery，and qualified coke with CSR～67.5% and～70% can be produced stably

Key words: Coking coal and fat coal from North America, Coal blending for cokemaking, Linear fitting, Coke quality