Abstract: Theoritical investigation has been conduted on the Al₂O₃-SiC-C refractory material used for iron runner and its ingredients have been developed in the lab. Site tests indicates that when trial material is used,the throughput of hot metal iron and service life were three time as much as those of the refractory home made in the company and a unit consumption one third of the latter,which have come up to the advanced level of the domestic steelmakers. Significant social and economic benirits can be obtained.