Sometimes the carbon content of ferrosilicon is lower than 0.1%, generally only 0.05~0.07%, what is the reason? Let’s find out together:
A large number of data show that the higher the silicon content in ferrosilicon, the lower its carbon content. According to data, when the silicon content in ferrosilicon is greater than 30%, most of the carbon in ferrosilicon exists in the state of silicon carbide (SiC). Silicon carbide is easily oxidized and reduced by silicon dioxide or silicon monoxide in the crucible. Silicon carbide has very little solubility in ferrosilicon, especially when the temperature is low, and it is easy to precipitate and float. Therefore, the silicon carbide remaining in ferrosilicon is very low, so the carbon content of ferrosilicon is very low.
