Silicon-barium-calcium alloy is a steelmaking deoxidizer primarily composed of calcium carbide (35-45%), silicon dioxide (40-45%), and barium sulfate (10-30%). It also functions as a desulfurizer and dephosphorizer, and is widely used in special steel smelting. This alloy belongs to the barium-based composite alloy family and can be used as a casting inoculant and modifier.
Barium effectively reduces the vapor pressure of calcium and increases its solubility in molten steel within the steelmaking temperature range. When the amount of silicon-barium-calcium alloy added is half that of silicon-calcium alloy, the calcium content in the molten steel can reach twice that of silicon-calcium alloy, and the stability of calcium is significantly improved. Its advantages include enhanced steel fluidity, solving the problem of nodule formation in continuous casting nozzles, improving silicon-manganese recovery rate, and reducing carbon powder consumption. It can replace traditional deoxidizing materials such as aluminum wire and silicon-calcium wire. Major grades include Si50Ba15Ca10 and Si50Ba13Ca13, with chemical compositions adjusted according to user requirements.
Silicon-barium-calcium is a barium-based composite alloy, mainly containing silicon (Si), barium (Ba), and calcium (Ca). It is a new type of composite deoxidizer used in steelmaking, and can also be used as a desulfurizer, dephosphorizer, inoculant, and modifier in casting.
