The slag melted agent is low in price and can replace fluorite and fluorite ball, which can quickly reduce slag, reduce cost and increase efficiency. This product is made of selected high-quality raw ore and sintered at high temperature. It has low silicon, low sulfur and low phosphorus, and its consumption is reduced by an average of 28.63% compared to fluorite. It is suitable for converters, electric furnace smelting and stainless steel production, and does not pollute molten steel. Obvious metallurgical effects and economic benefits.