Ferroalloys purposes: as a deoxidizer. Add some to combine with oxygen relatively strong Si-Al-Ba-Ca Deoxidizer Tianjin, and its oxidation products can be successfully excluded from liquid steel, so that the elements of the molten steel oxygen content decreased. This process is called deoxy steel. Elements or alloys are used for deoxygenation called oxygen scavenger. Ferroalloys: not the same in different components of ferrosilicon melting points, such as 45% ferrosilicon melting point of 1260 ℃, 75% ferrosilicon was 1340 ℃. Ferromanganese alloy of manganese and iron, calcium, barium aluminosilicate Hubei Deoxidizer, which also contains carbon, silicon, phosphorus and other small amounts of other elements, according to their carbon content of different, divided into high-carbon ferromanganese ferromanganese, medium carbon ferromanganese and low-carbon ferromanganese. Manganese alloy containing a sufficient amount of silicon called silicon-manganese alloys.