High carbon silicon as silicon carbon alloy, is a new type of alloy used in the converter, this product is a by-product of the production of metal silicon dioxide. The main component consists of silicon and carbon. Other contents are: silicon dioxide, phosphorus, sulfur and so on. It can replace ferrosilicon, silicon carbide, carbon enhancers, reduce the amount of deoxidizer, used in converter smelting deoxidizing alloying process, the effect is stable, the chemical composition of steel, mechanical properties and internal control of the quality are better than the traditional process. High carbon silicon contains silicon element. After adding high-carbon silicon in the steelmaking process, the silicon element in it interacts with oxygen to deoxidize the oxygen in the steel water, thus increasing the hardness and quality of steel. High carbon silicon and oxygen in the silicon element has a good affinity, so the steel is still put into the steel has the characteristics of non-spattering.