Alloy steel foundry industry and machinery industry indispensable raw material silicon barium calcium alloy one offer, its main purpose: First, as a deoxidizer, eliminate excess liquid steel oxygen; the second is as an alloying element silicon barium calcium additive Wanted alloy, improve the quality and performance of steel. As China's iron and steel industry sustained and rapid development of silicon barium calcium alloy prices, variety of steel, continues to expand and improve the quality of products put a higher demand ferroalloy, ferroalloy industry is increasingly becoming relevant technologies and supporting engineering steel industry. Ferroalloy uses: alloy called for deoxygenation deoxidizer. Steel of various elements on the bonding strength of oxygen, namely oxygen capacity, from weak to strong in the following order: chromium, manganese, carbon, silicon, vanadium, titanium, boron, aluminum, zirconium and calcium. Thus, the general common ferroalloy steel deoxidation of silicon, manganese, aluminum, calcium composition.